Comments (2)
No, that looks like a bug.
Lines 220 to 224 in 0643631
We should check for continuous mode and do not reconfigure the sensor.
from bh1750.
Can you replace it accordingly with the following and test it?
float BH1750::readLightLevel(bool maxWait) {
if (BH1750_MODE == UNCONFIGURED) {
Serial.println(F("[BH1750] Device is not configured!"));
return -2.0;
}
// Measurement result will be stored here
float level = -1.0;
// Wait for measurement to be taken.
// Measurements have a maximum measurement time and a typical measurement
// time. The maxWait argument determines which measurement wait time is
// used when a one-time mode is being used. The typical (shorter)
// measurement time is used by default and if maxWait is set to True then
// the maximum measurement time will be used. See data sheet pages 2, 5
// and 7 for more details.
// A continuous mode measurement can be read immediately after re-sending
// the mode command.
switch (BH1750_MODE) {
case BH1750::ONE_TIME_LOW_RES_MODE:
// Send mode to sensor
Wire.beginTransmission(BH1750_I2CADDR);
__wire_write((uint8_t)BH1750_MODE);
Wire.endTransmission();
maxWait ? _delay_ms(24 * BH1750_MTreg/(byte)BH1750_DEFAULT_MTREG) : _delay_ms(16 * BH1750_MTreg/(byte)BH1750_DEFAULT_MTREG);
break;
case BH1750::ONE_TIME_HIGH_RES_MODE:
case BH1750::ONE_TIME_HIGH_RES_MODE_2:
// Send mode to sensor
Wire.beginTransmission(BH1750_I2CADDR);
__wire_write((uint8_t)BH1750_MODE);
Wire.endTransmission();
maxWait ? _delay_ms(180 * BH1750_MTreg/(byte)BH1750_DEFAULT_MTREG) :_delay_ms(120 * BH1750_MTreg/(byte)BH1750_DEFAULT_MTREG);
break;
default:
break;
}
// Read two bytes from the sensor, which are low and high parts of the sensor
from bh1750.
Related Issues (20)
- Usage information MTreg HOT 3
- add this library to Arduino Library Manager HOT 13
- Hello, the library dont really want to work with my esp32s, anyone? HOT 52
- Lower bits of MTreg HOT 5
- Issue calling readLightLevel immediately after setMTReg HOT 5
- [BH1750] Set address _after_ constructor HOT 1
- [BH1750] Device is not configured! ESP8266 afterESP.deepSleep HOT 4
- Trouble using 2 sensors HOT 3
- The library works for STM32 HOT 2
- [TIP] Device not configured - temporary fix. HOT 5
- BH1750 does not work on ESP32 HOT 3
- BH1750 MTreg min is 31 in the datasheet, HOT 2
- Debug messages can cause the MCU stuck HOT 1
- 'Wire1' was not declared in this scope; did you mean 'Wire'? HOT 1
- BH1750 readLightLevel() eventually returns 27k value in low light environment HOT 1
- Possible arithmetic error evident with larger MTreg
- delete
- clarification on executing next OneTime measurment and getting delay time HOT 2
- Arduino Uno R4 minima HOT 3
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from bh1750.