If you are using breadboard make sure that the data wire is connected between the resistor and sensor, or in other words that the resistor is not on the way between espruino and thermometer.
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.
If you are using breadboard make sure that the data wire is connected between the resistor and sensor, or in other words that the resistor is not on the way between espruino and thermometer.