Comments (2)
Another idea is to create startOneTimeMeasure()
, which will just start measure using already set (with validation) ONE_TIME mode, and, unlike conigure()
, it won't be waiting 10ms to sensor receive command (if i understood corretly that delay in case someone tries to do something just right after), which will allow non-blocking flow
from bh1750.
I think this library will not get any further attention, maybe you should consider to fork and patch.
The sleep in general is not the problem, but most of the arduino devices doesn't restore their RAM. therefore the library needs to get initialized after every wakepup.
However, the instance of this library stores the last value and no, there is no getter for this currently:
Line 81 in b6986b5
this here:
Line 102 in b6986b5
As far as I remember you should be able to trigger a OneTime command, got to sleep the right amount of time and read then the sensor. The sensor itself stores the last measurement in the register until a new measurement is completed. (Need confirmation).
A get function for the wait delay could be useful, but is unlikely to happen.
On a battery driven design, you could sleep long enough to be sure that this chip is ready to deliver a new value (e.g. 500ms). If you want both, like maximum battery saving AND fastest refresh rate on hard timings, then this library is not useful.
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
- Frequent calls to readLightLevel prevents measurement update HOT 2
- [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
- Arduino Uno R4 minima HOT 3
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from bh1750.