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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.
@DrAzzy
Try putting a 1k pullup to Vcc on the data line.
Also, DHT11's are terrible - the temperature is okay, the humidity is very often totally bogus. The DHT22 sucks less. Both of them will instantly fail if you connect power backwards, so don't do that.