Sleep or Reset function dont work

[alco28]

I can't get the sleep and reset (power_on) function working. Can you look at that for an example? I use:

void loop() {
// put your main code here, to run repeatedly:
LightSensor.Reset();
delay(4000); // played with it..don't work..
uint16_t lux = LightSensor.GetLightIntensity();// Get Lux value
Serial.print("Light: ");
Serial.print(lux);
Serial.println(" lux");

LightSensor.Sleep(); //sleep it
delay(6000);
}

[sej7278]

i find that Sleep() works fine and takes the current down from 112uA to 5uA, but it never wakes up again after a Reset() and always returns 0, the same happens if you use the ONETIME_* methods, as they also automatically sleep the device after taking a reading.

the library seems to be much the same as a lot of other libraries on other platforms, so i can only assume its something to do with the way the arduino Wire library works or the i2c pullups....?

oddly enough when connecting a multimeter, when the module goes to sleep it seems to reverse the polarity or direction of current flow or something odd as the meter reads -25uA sometimes.

[Genotronex]

Maybe call function error .
do you use any other I2C device with your project ?

Mohannad.B.Rawashdeh
Genotronex Electronics -Amman-Jordan
Tel : 0962786739233

On Tue, Sep 15, 2015 at 2:43 PM, Simon John [email protected]
wrote:

i find that Sleep() works fine, but it never wakes up again after a Reset()

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[sej7278]

i found the problem.

when using one of the onetime modes e.g. lightMeter.SetMode(OneTime_H_resolution_Mode); or calling lightMeter.Sleep(); you can't just wake again using lightMeter.Reset(); you have to set the resolution mode again e.g. lightMeter.SetMode(OneTime_H_resolution_Mode);

so it may be worth documenting that to wake you should call:

lightMeter.Reset();
lightMeter.SetMode(uint8_t MODE);