What was puzzled me for some time i2c bus was full of random numbers. So in the case of a 5v MLX device, an additional voltage shifter should be used!īy default, the device is working in SMBus mode, but my sample was in PWM mode. It may be used only in case of a “long” line.Ĭ1 capacitor is important and should be placed as close as possible to the device.Īnother important note about voltages! Raspberry PI is a 3.3v device and not tolerant of 5v inputs.
R 1 and R 2 – 4K 7 are optional because Raspberry contains such resistors aboard. 5v can kill your 3.3 v device! Connecting to the Raspberry Pi. Most important characteristics of this device you can find in the table below.įor full specifications, description, and complete usage, please use the official datasheet. PWM mode enables stand-alone usage of this device like a thermostat and won’t be discussed in this article (well, almost).
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