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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Steffen
I've got a Puck with an Automation Serice, sending E.temperature and some other builtin peripherals' data. It sits well protected on my balkony, acting as small outdoor weather station. It work well down to temperatures of about -5 °C.
Nordic's datasheet states that the chip should work even at -25 .. -40 °C. Now I'm wondering what actually limits the working temperature to -5 °C. Would the MDBT42Q board also have this limitation?
I'm fancying a weather station with MDBT42Q and a BME280 sensor, maybe a little display, and a battery lasting +1 year, replacing my current LCD thermomter (without BLE :)