Geschrieben January 13, 2015 at 17:1013. Jan 2015 Hi, I have a temperature bricklet, however it has a strange behavior. I also have humidity and barometer bricklets, for these I use the callback method with a callback period at 1000ms (like in the Weather Station documentation). I do the exact same thing with the temperature but it can take up to a minute to trigger a measurement. Also, temperatures shown seem approx 2°C higher than it should be (the sensor is not close to a heat source). Is that normal ? Thank for your time and your help.
Geschrieben January 13, 2015 at 19:5013. Jan 2015 Have you set the I2C Mode to slow? Maybe this helps. Temperature.set_i2c_mode
Geschrieben January 13, 2015 at 20:1213. Jan 2015 Autor Hum no... actually it's worse: no measurement at all.
Geschrieben January 14, 2015 at 07:5714. Jan 2015 Does this only occur if all 3 sensors are connected? What happens if only temperature is connected? Is the temperature cable near EMI sources?
Geschrieben January 14, 2015 at 08:5214. Jan 2015 A callback is only triggered if the value actually changes. So for example if you set a callback period of 1 second and the temperature stays the same for 30 seconds until it changes, you will only get the callback after 30 seconds. This is probably what you are seeing here. To try this out you can heat/cool the Bricklet rapidly. We do this to save bandwidth on the USB.
Geschrieben January 17, 2015 at 20:5017. Jan 2015 Autor Hi, Finally I got it working properly by re-flashing it...
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