Workaround für HM3301 to Get Valid Data After Sleeping
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3979ecd988
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1 changed files with 38 additions and 23 deletions
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@ -46,8 +46,11 @@ void HM330x::initialize(void) {
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}
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// Wait for Sensor to get Ready
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DEBUG_PRINTLN("HM330x::initialize Waiting for Sensor Startup");
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delay(30000);
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if (sleep_pin == 0) {
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DEBUG_PRINTLN("HM330x::initialize Waiting for Sensor Startup");
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delay(30000);
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}
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DEBUG_PRINTLN("HM330x::initialize Trying to send Select");
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// Send select command
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@ -65,46 +68,58 @@ void HM330x::initialize(void) {
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// Read Data From Sensor and Put Them Into the Payload Array
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uint8_t HM330x::getSensorData(char *payload, uint8_t startbyte) {
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uint8_t data[HM330x_DATA_LEN] = {0};
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uint16_t value = 0;
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uint16_t values[3] = { 0xEEEE, 0xEEEE, 0xEEEE };
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DEBUG_PRINTLN("HM330x::getSensorData");
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// Enable Sensor and Wait for it to Settle
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if (sleep_pin > 0) {
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digitalWrite(sleep_pin, HIGH);
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DEBUG_PRINTLN("HM330x::getSensorData Waiting for Stable Values after Sleep");
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delay(30000);
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sendCmd(HM330x_SELECT);
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}
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// Initialize Payload with 0s
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for (uint8_t i=startbyte; i < startbyte+6; i++)
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payload[i] = 0xFF;
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// Get Data from the Sensors
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Wire.requestFrom(HM330x_ADDR, HM330x_DATA_LEN);
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if (Wire.available()) {
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DEBUG_PRINT("HM330x::getSensorData reading I2C:")
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for (uint8_t i = 0; i<HM330x_DATA_LEN; i++){
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data[i] = Wire.read();
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DEBUG_PRINT(" 0x");
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DEBUG_PRINT(data[i], HEX);
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}
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DEBUG_PRINTLN("");
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bool dataok = false;
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uint8_t tries = 5;
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if (calcSum(data) == data[HM330x_DATA_LEN-1]) {
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for (uint8_t pos = 5; pos<8; pos++) {
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value = bytesToUint16(data, pos);
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uint16ToPayload(value, payload, startbyte);
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startbyte += 2;
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while (!dataok && tries > 0) {
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DEBUG_PRINT("HM330x::getSensorData reading I2C Try ");
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DEBUG_PRINTLN(6-tries);
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// Get Data from the Sensors
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Wire.requestFrom(HM330x_ADDR, HM330x_DATA_LEN);
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if (Wire.available()) {
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DEBUG_PRINT("HM330x::getSensorData I2C data: 0x")
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for (uint8_t i = 0; i<HM330x_DATA_LEN; i++){
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data[i] = Wire.read();
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DEBUG_PRINT(data[i], HEX);
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DEBUG_PRINT(" ");
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}
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if (sleep_pin > 0) {
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digitalWrite(sleep_pin, LOW);
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DEBUG_PRINTLN("");
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if (calcSum(data) == data[HM330x_DATA_LEN-1]) {
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for (uint8_t pos = 5; pos<8; pos++) {
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values[pos-5]= bytesToUint16(data, pos);
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}
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dataok = true;
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} else {
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DEBUG_PRINTLN("HM330x::getSensorData Checksum Error")
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delay(2000);
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tries--;
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}
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return startbyte;
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} else {
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for (uint8_t i=startbyte; i < startbyte+6; i++)
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payload[i] = 0xEE;
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DEBUG_PRINTLN("HM330x::getSensorData I2C Not Ready")
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delay(2000);
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tries--;
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}
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}
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uint16ToPayload(values[0], payload, startbyte);
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uint16ToPayload(values[1], payload, startbyte+2);
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uint16ToPayload(values[2], payload, startbyte+4);
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if (sleep_pin > 0) {
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digitalWrite(sleep_pin, LOW);
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}
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