mirror of
https://github.com/arendst/Tasmota.git
synced 2026-07-27 20:05:46 +00:00
Fix SPS30 not detected on ESP8266 (#24780)
This commit is contained in:
Theo Arends
@@ -19,21 +19,23 @@
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#ifdef USE_I2C
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#ifdef USE_SPS30
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/*********************************************************************************************\
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* SPS30 - Particulate Matter (PM)
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*
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* I2C Address: 0x69
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\*********************************************************************************************/
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#define XSNS_44 44
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#define XI2C_30 30 // See I2CDEVICES.md
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#define XSNS_44 44
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#define XI2C_30 30 // See I2CDEVICES.md
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#define SPS30_ADDR 0x69
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//#define SPS30_PARTS_PER_DECILITER // Report NCPM as parts per deciliter instead of parts per cm3
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//#define SENSIRION_DEBUG // Adds 1k2 to code size
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#include <Wire.h>
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#ifdef ESP8266
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#include <twi.h>
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#endif
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#include <SensirionI2cSps30.h>
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uint8_t sps30_ready = 0;
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uint8_t sps30_running;
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SensirionI2cSps30 sps30;
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struct SPS30 {
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struct SPS30DATA_s {
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float PM1_0;
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float PM2_5;
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float PM4_0;
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@@ -44,273 +46,243 @@ struct SPS30 {
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float NCPM4_0;
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float NCPM10;
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float TYPSIZ;
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} sps30_result;
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uint8_t running;
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} *SPS30DATA = nullptr;
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#define SPS_CMD_START_MEASUREMENT 0x0010
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#define SPS_CMD_START_MEASUREMENT_ARG 0x0300
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#define SPS_CMD_STOP_MEASUREMENT 0x0104
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#define SPS_CMD_READ_MEASUREMENT 0x0300
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#define SPS_CMD_GET_DATA_READY 0x0202
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#define SPS_CMD_AUTOCLEAN_INTERVAL 0x8004
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#define SPS_CMD_CLEAN 0x5607
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#define SPS_CMD_GET_ACODE 0xd025
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#define SPS_CMD_GET_SERIAL 0xd033
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#define SPS_CMD_RESET 0xd304
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#define SPS_WRITE_DELAY_US 20000
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#define SPS_MAX_SERIAL_LEN 32
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/********************************************************************************************/
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uint8_t sps30_calc_CRC(uint8_t *data) {
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uint8_t crc = 0xFF;
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for (uint32_t i = 0; i < 2; i++) {
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crc ^= data[i];
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for (uint32_t bit = 8; bit > 0; --bit) {
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if(crc & 0x80) {
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crc = (crc << 1) ^ 0x31u;
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} else {
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crc = (crc << 1);
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}
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}
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}
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return crc;
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}
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void CmdClean(void);
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#ifdef ESP8266
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unsigned char twi_readFrom(unsigned char address, unsigned char* buf, unsigned int len, unsigned char sendStop);
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bool Sps30Error(const char* func, int error) {
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bool result = (error != 0);
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if (result) {
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#ifdef SENSIRION_DEBUG
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char error_msg[64];
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errorToString(error, error_msg, sizeof(error_msg));
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AddLog(LOG_LEVEL_DEBUG, PSTR("SPS: %s error %d %s"), func, error, error_msg);
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#else
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AddLog(LOG_LEVEL_DEBUG, PSTR("SPS: %s error %d"), func, error);
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#endif
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}
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return result;
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}
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void sps30_get_data(uint16_t cmd, uint8_t *data, uint8_t dlen) {
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unsigned char cmdb[2];
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uint8_t tmp[3];
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uint8_t index=0;
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memset(data,0,dlen);
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uint8_t twi_buff[64];
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/********************************************************************************************/
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Wire.beginTransmission(SPS30_ADDR);
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cmdb[0]=cmd>>8;
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cmdb[1]=cmd;
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Wire.write(cmdb,2);
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Wire.endTransmission();
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// need 60 bytes max
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dlen/=2;
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dlen*=3;
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#ifdef ESP8266
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twi_readFrom(SPS30_ADDR,twi_buff,dlen,1);
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#endif // ESP8266
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#ifdef ESP32
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Wire.requestFrom((uint16_t)SPS30_ADDR, dlen, true);
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Wire.readBytes(twi_buff, dlen);
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#endif // ESP32
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uint8_t bind=0;
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while (bind<dlen) {
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tmp[0] = twi_buff[bind++];
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tmp[1] = twi_buff[bind++];
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tmp[2] = twi_buff[bind++];
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if (sps30_calc_CRC(tmp)!=tmp[2]) {
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// chksum error
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index+=2;
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} else {
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data[index++]=tmp[0];
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data[index++]=tmp[1];
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void Sps30Init(void) {
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PowerOnDelay(60); // Sensor startup time (Time after power-on until I2C communication can be started)
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for (uint32_t bus = 0; bus < MAX_I2C; bus++) {
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if (!I2cSetDevice(SPS30_I2C_ADDR_69, bus)) {
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// Sps30Error("Scan", bus +1);
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continue;
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}
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}
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}
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sps30.begin(I2cGetWire(bus), SPS30_I2C_ADDR_69);
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void sps30_cmd(uint16_t cmd) {
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unsigned char cmdb[6];
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Wire.beginTransmission(SPS30_ADDR);
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cmdb[0]=cmd>>8;
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cmdb[1]=cmd;
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if (sps30.wakeUp()) { // Switch from sleep to idle mode. Performs delay(5) if no error
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if (Sps30Error("WakeUp", sps30.wakeUp())) {
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continue;
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}
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}
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if (cmd==SPS_CMD_START_MEASUREMENT) {
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cmdb[2]=SPS_CMD_START_MEASUREMENT_ARG>>8;
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cmdb[3]=SPS_CMD_START_MEASUREMENT_ARG&0xff;
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cmdb[4]=sps30_calc_CRC(&cmdb[2]);
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Wire.write(cmdb,5);
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} else {
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Wire.write(cmdb,2);
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}
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Wire.endTransmission();
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}
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if (sps30.deviceReset()) { // Switch to power reset state (idle mode). Performs delay(100) if no error
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if (Sps30Error("Reset", sps30.deviceReset())) { // See https://github.com/arendst/Tasmota/discussions/24452
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continue;
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}
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}
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void SPS30_Detect(void)
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{
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if (!I2cSetDevice(SPS30_ADDR)) { return; }
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uint8_t dcode[32];
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sps30_get_data(SPS_CMD_GET_SERIAL,dcode,sizeof(dcode));
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if(dcode[0] == 0) {
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uint8_t major;
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uint8_t minor;
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if (Sps30Error("Version", sps30.readFirmwareVersion(major, minor))) {
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continue;
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}
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int8_t serial_number[32] = { 0 };
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if (Sps30Error("Serialnumber", sps30.readSerialNumber(serial_number, sizeof(serial_number)))) {
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continue;
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}
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/*
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// (always “00080000” without terminating null-character, recommended to use as product identifier)
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int8_t product_type[8] = { 0 };
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if (Sps30Error("Producttype", sps30.readProductType(product_type, sizeof(product_type)))) {
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continue;
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}
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*/
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if (Sps30Error("StartMeasurement", sps30.startMeasurement(SPS30_OUTPUT_FORMAT_OUTPUT_FORMAT_FLOAT))) {
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continue;
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}
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SPS30DATA = (SPS30DATA_s *)calloc(1, sizeof(struct SPS30DATA_s));
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if (nullptr == SPS30DATA) { return; }
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SPS30DATA->running = 1;
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I2cSetActiveFound(SPS30_I2C_ADDR_69, "SPS30", bus);
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AddLog(LOG_LEVEL_DEBUG, PSTR("SPS: SPS30 serialnumber %s v%d.%d"), serial_number, major, minor);
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return;
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}
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AddLog(LOG_LEVEL_DEBUG, PSTR("sps30 found with serial: %s"), dcode);
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sps30_cmd(SPS_CMD_START_MEASUREMENT);
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sps30_running = 1;
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sps30_ready = 1;
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I2cSetActiveFound(SPS30_ADDR, "SPS30");
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}
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#define D_UNIT_PM "ug/m3"
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#define D_UNIT_NCPM "#/cm3"
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void Sps30EverySecond(void) {
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if (!SPS30DATA->running) { return; }
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#ifdef USE_WEBSERVER
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const char HTTP_SNS_SPS30_a[] PROGMEM ="{s}SPS30 " "%s" "{m}%s " D_UNIT_PM "{e}";
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const char HTTP_SNS_SPS30_b[] PROGMEM ="{s}SPS30 " "%s" "{m}%s " D_UNIT_NCPM "{e}";
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const char HTTP_SNS_SPS30_c[] PROGMEM ="{s}SPS30 " "TYPSIZ" "{m}%s " "um" "{e}";
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#endif // USE_WEBSERVER
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#define PMDP 2
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#define SPS30_HOURS Settings->sps30_inuse_hours
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//#define SPS30_HOURS sps30_inuse_hours
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//uint8_t sps30_inuse_hours;
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void SPS30_Every_Second() {
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if (!sps30_running) return;
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if (TasmotaGlobal.uptime%10==0) {
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uint8_t vars[sizeof(float)*10];
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sps30_get_data(SPS_CMD_READ_MEASUREMENT,vars,sizeof(vars));
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float *fp=&sps30_result.PM1_0;
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typedef union {
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uint8_t array[4];
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float value;
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} ByteToFloat;
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ByteToFloat conv;
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for (uint32_t count=0; count<10; count++) {
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for (uint32_t i = 0; i < 4; i++){
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conv.array[3-i] = vars[count*sizeof(float)+i];
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}
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*fp++=conv.value;
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if (TasmotaGlobal.uptime % 10 == 0) {
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float PM1_0;
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float PM2_5;
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float PM4_0;
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float PM10;
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float NCPM0_5;
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float NCPM1_0;
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float NCPM2_5;
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float NCPM4_0;
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float NCPM10;
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float TYPSIZ;
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if (!Sps30Error("Measurement", sps30.readMeasurementValuesFloat(
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PM1_0, PM2_5, PM4_0, PM10, NCPM0_5, NCPM1_0, NCPM2_5, NCPM4_0, NCPM10, TYPSIZ))) {
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SPS30DATA->PM1_0 = PM1_0;
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SPS30DATA->PM2_5 = PM2_5;
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SPS30DATA->PM4_0 = PM4_0;
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SPS30DATA->PM10 = PM10;
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#ifdef SPS30_PARTS_PER_DECILITER
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SPS30DATA->NCPM0_5 = NCPM0_5 * 100; // ppd = 100 cm3
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SPS30DATA->NCPM1_0 = NCPM1_0 * 100;
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SPS30DATA->NCPM2_5 = NCPM2_5 * 100;
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SPS30DATA->NCPM4_0 = NCPM4_0 * 100;
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SPS30DATA->NCPM10 = NCPM10 * 100;
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#else // Number per cm3
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SPS30DATA->NCPM0_5 = NCPM0_5;
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SPS30DATA->NCPM1_0 = NCPM1_0;
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SPS30DATA->NCPM2_5 = NCPM2_5;
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SPS30DATA->NCPM4_0 = NCPM4_0;
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SPS30DATA->NCPM10 = NCPM10;
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#endif // SPS30_PARTS_PER_DECILITER
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SPS30DATA->TYPSIZ = TYPSIZ;
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}
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}
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if (TasmotaGlobal.uptime%3600==0 && TasmotaGlobal.uptime>60) {
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if (TasmotaGlobal.uptime % 3600 == 0 && TasmotaGlobal.uptime > 60) {
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// should auto clean once per week runtime
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// so count hours, should be in Settings
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SPS30_HOURS++;
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if (SPS30_HOURS>(7*24)) {
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CmdClean();
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SPS30_HOURS=0;
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Settings->sps30_inuse_hours++;
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if (Settings->sps30_inuse_hours > (7*24)) {
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Settings->sps30_inuse_hours = 0;
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sps30.startFanCleaning();
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ResponseTime_P(PSTR(",\"SPS30\":\"FanCleaning\"}"));
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MqttPublishTeleSensor();
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}
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}
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}
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void SPS30_Show(bool json)
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{
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if (!sps30_running) { return; }
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/*********************************************************************************************\
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* Commands
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\*********************************************************************************************/
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char str[64];
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if (json) {
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dtostrfd(sps30_result.PM1_0,PMDP,str);
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ResponseAppend_P(PSTR(",\"SPS30\":{\"" "PM1_0" "\":%s"), str);
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dtostrfd(sps30_result.PM2_5,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "PM2_5" "\":%s"), str);
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dtostrfd(sps30_result.PM4_0,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "PM4_0" "\":%s"), str);
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dtostrfd(sps30_result.PM10,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "PM10" "\":%s"), str);
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dtostrfd(sps30_result.NCPM0_5,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "NCPM0_5" "\":%s"), str);
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dtostrfd(sps30_result.NCPM1_0,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "NCPM1_0" "\":%s"), str);
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dtostrfd(sps30_result.NCPM2_5,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "NCPM2_5" "\":%s"), str);
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dtostrfd(sps30_result.NCPM4_0,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "NCPM4_0" "\":%s"), str);
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dtostrfd(sps30_result.NCPM10,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "NCPM10" "\":%s"), str);
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dtostrfd(sps30_result.TYPSIZ,PMDP,str);
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ResponseAppend_P(PSTR(",\"" "TYPSIZ" "\":%s}"), str);
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#ifdef USE_WEBSERVER
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} else {
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dtostrfd(sps30_result.PM1_0,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_a,"PM 1.0",str);
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dtostrfd(sps30_result.PM2_5,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_a,"PM 2.5",str);
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dtostrfd(sps30_result.PM4_0,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_a,"PM 4.0",str);
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dtostrfd(sps30_result.PM10,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_a,"PM 10",str);
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dtostrfd(sps30_result.NCPM0_5,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_b,"NCPM 0.5",str);
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dtostrfd(sps30_result.NCPM1_0,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_b,"NCPM 1.0",str);
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dtostrfd(sps30_result.NCPM2_5,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_b,"NCPM 2.5",str);
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dtostrfd(sps30_result.NCPM4_0,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_b,"NCPM 4.0",str);
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dtostrfd(sps30_result.NCPM10,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_b,"NCPM 10",str);
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dtostrfd(sps30_result.TYPSIZ,PMDP,str);
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WSContentSend_PD(HTTP_SNS_SPS30_c,str);
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#endif
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}
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}
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void CmdClean(void)
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{
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sps30_cmd(SPS_CMD_CLEAN);
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ResponseTime_P(PSTR(",\"SPS30\":{\"CFAN\":\"true\"}}"));
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MqttPublishTeleSensor();
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}
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bool SPS30_cmd(void)
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{
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bool Sps30Command(void) {
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// Sensor44 0 - Stop measurment
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// Sensor44 1 - Start measurment
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// Sensor44 c - Clean
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bool serviced = true;
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if (XdrvMailbox.data_len > 0) {
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char *cp=XdrvMailbox.data;
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if (*cp=='c') {
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// clean cmd
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CmdClean();
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} else if (*cp=='0' || *cp=='1') {
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sps30_running=*cp&1;
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sps30_cmd(sps30_running?SPS_CMD_START_MEASUREMENT:SPS_CMD_STOP_MEASUREMENT);
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char *cp = XdrvMailbox.data;
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if (*cp == 'c') {
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// clean cmd
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sps30.startFanCleaning();
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Response_P(PSTR("{\"SPS30\":\"FanCleaning\"}"));
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return true;
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}
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else if (*cp == '0' || *cp == '1') {
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SPS30DATA->running = *cp &1;
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if (SPS30DATA->running) {
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sps30.startMeasurement(SPS30_OUTPUT_FORMAT_OUTPUT_FORMAT_FLOAT);
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} else {
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serviced=false;
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sps30.stopMeasurement();
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}
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} else {
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return false;;
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}
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}
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Response_P(PSTR("{\"SPS30\":\"%s\"}"), sps30_running?"running":"stopped");
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Response_P(PSTR("{\"SPS30\":\"%s\"}"), SPS30DATA->running ? "Running" : "Stopped");
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return serviced;
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}
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/*********************************************************************************************\
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* Presentation
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\*********************************************************************************************/
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#define D_UNIT_NUMBER_PER_CUBIC_CM "#/cm³"
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#define D_TYPICAL_PARTICLE_SIZE "Typical Size"
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#define D_NUMBER_ENVIRONMENTAL_CONCENTRATION "NCPM"
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|
||||
#ifdef USE_WEBSERVER
|
||||
#ifndef SPS30_PARTS_PER_DECILITER
|
||||
const char HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION[] PROGMEM = "{s}%s " D_NUMBER_ENVIRONMENTAL_CONCENTRATION " %s " D_UNIT_MICROMETER "{m}%1_f " D_UNIT_NUMBER_PER_CUBIC_CM "{e}";
|
||||
#endif // No SPS30_PARTS_PER_DECILITER
|
||||
const char HTTP_SNS_F_TYPICAL_PARTICLE_SIZE[] PROGMEM ="{s}%s " D_TYPICAL_PARTICLE_SIZE "{m}%2_f " D_UNIT_MICROMETER "{e}";
|
||||
#endif // USE_WEBSERVER
|
||||
|
||||
void Sps30Show(bool json) {
|
||||
if (!SPS30DATA->running) { return; }
|
||||
|
||||
if (json) {
|
||||
ResponseAppend_P(PSTR(",\"SPS30\":{\"PM1_0\":%2_f,\"PM2_5\":%2_f,\"PM4_0\":%2_f,\"PM10\":%2_f"),
|
||||
&SPS30DATA->PM1_0, &SPS30DATA->PM2_5, &SPS30DATA->PM4_0, &SPS30DATA->PM10);
|
||||
#ifdef SPS30_PARTS_PER_DECILITER
|
||||
ResponseAppend_P(PSTR(",\"NCPM0_5\":%d,\"NCPM1_0\":%d,\"NCPM2_5\":%d,\"NCPM4_0\":%d,\"NCPM10\":%d"),
|
||||
(uint32_t)SPS30DATA->NCPM0_5, (uint32_t)SPS30DATA->NCPM1_0, (uint32_t)SPS30DATA->NCPM2_5, (uint32_t)SPS30DATA->NCPM4_0, (uint32_t)SPS30DATA->NCPM10);
|
||||
#else // Number per cm3
|
||||
ResponseAppend_P(PSTR(",\"NCPM0_5\":%2_f,\"NCPM1_0\":%2_f,\"NCPM2_5\":%2_f,\"NCPM4_0\":%2_f,\"NCPM10\":%2_f"),
|
||||
&SPS30DATA->NCPM0_5, &SPS30DATA->NCPM1_0, &SPS30DATA->NCPM2_5, &SPS30DATA->NCPM4_0, &SPS30DATA->NCPM10);
|
||||
#endif // SPS30_PARTS_PER_DECILITER
|
||||
ResponseAppend_P(PSTR(",\"TYPSIZ\":%2_f}"), &SPS30DATA->TYPSIZ);
|
||||
#ifdef USE_WEBSERVER
|
||||
} else {
|
||||
WSContentSend_PD(HTTP_SNS_F_ENVIRONMENTAL_CONCENTRATION, "SPS30", "1", &SPS30DATA->PM1_0);
|
||||
WSContentSend_PD(HTTP_SNS_F_ENVIRONMENTAL_CONCENTRATION, "SPS30", "2.5", &SPS30DATA->PM2_5);
|
||||
WSContentSend_PD(HTTP_SNS_F_ENVIRONMENTAL_CONCENTRATION, "SPS30", "4", &SPS30DATA->PM4_0);
|
||||
WSContentSend_PD(HTTP_SNS_F_ENVIRONMENTAL_CONCENTRATION, "SPS30", "10", &SPS30DATA->PM10);
|
||||
#ifdef SPS30_PARTS_PER_DECILITER
|
||||
WSContentSend_PD(HTTP_SNS_PARTICALS_BEYOND, "SPS30", "0.5", (uint32_t)SPS30DATA->NCPM0_5);
|
||||
WSContentSend_PD(HTTP_SNS_PARTICALS_BEYOND, "SPS30", "1", (uint32_t)SPS30DATA->NCPM1_0);
|
||||
WSContentSend_PD(HTTP_SNS_PARTICALS_BEYOND, "SPS30", "2.5", (uint32_t)SPS30DATA->NCPM2_5);
|
||||
WSContentSend_PD(HTTP_SNS_PARTICALS_BEYOND, "SPS30", "4", (uint32_t)SPS30DATA->NCPM4_0);
|
||||
WSContentSend_PD(HTTP_SNS_PARTICALS_BEYOND, "SPS30", "10", (uint32_t)SPS30DATA->NCPM10);
|
||||
#else // Number per cm3
|
||||
WSContentSend_PD(HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION, "SPS30", "0.5", &SPS30DATA->NCPM0_5);
|
||||
WSContentSend_PD(HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION, "SPS30", "1", &SPS30DATA->NCPM1_0);
|
||||
WSContentSend_PD(HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION, "SPS30", "2.5", &SPS30DATA->NCPM2_5);
|
||||
WSContentSend_PD(HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION, "SPS30", "4", &SPS30DATA->NCPM4_0);
|
||||
WSContentSend_PD(HTTP_SNS_F_NUMBER_ENVIRONMENTAL_CONCENTRATION, "SPS30", "10", &SPS30DATA->NCPM10);
|
||||
#endif // SPS30_PARTS_PER_DECILITER
|
||||
WSContentSend_PD(HTTP_SNS_F_TYPICAL_PARTICLE_SIZE, "SPS30", &SPS30DATA->TYPSIZ);
|
||||
#endif // USE_WEBSERVER
|
||||
}
|
||||
}
|
||||
|
||||
/*********************************************************************************************\
|
||||
* Interface
|
||||
\*********************************************************************************************/
|
||||
|
||||
bool Xsns44(uint32_t function)
|
||||
{
|
||||
bool Xsns44(uint32_t function) {
|
||||
if (!I2cEnabled(XI2C_30)) { return false; }
|
||||
|
||||
bool result = false;
|
||||
|
||||
if (FUNC_INIT == function) {
|
||||
SPS30_Detect();
|
||||
Sps30Init();
|
||||
}
|
||||
else if (sps30_ready) {
|
||||
else if (SPS30DATA) {
|
||||
switch (function) {
|
||||
case FUNC_EVERY_SECOND:
|
||||
SPS30_Every_Second();
|
||||
Sps30EverySecond();
|
||||
break;
|
||||
case FUNC_JSON_APPEND:
|
||||
SPS30_Show(1);
|
||||
Sps30Show(1);
|
||||
break;
|
||||
#ifdef USE_WEBSERVER
|
||||
#ifdef USE_WEBSERVER
|
||||
case FUNC_WEB_SENSOR:
|
||||
SPS30_Show(0);
|
||||
Sps30Show(0);
|
||||
break;
|
||||
#endif // USE_WEBSERVER
|
||||
#endif // USE_WEBSERVER
|
||||
case FUNC_COMMAND_SENSOR:
|
||||
if (XSNS_44 == XdrvMailbox.index) {
|
||||
result = SPS30_cmd();
|
||||
result = Sps30Command();
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user