Hi Nick, are you typing this into the left hand side or right hand side of the IDE? Most modules aren't built into the firmware, the IDE loads it onto the board when you upload code from the right hand side. You could try typing the same code into the right hand side, or type
require("DS18B20")
into the right hand side and click upload, which will load the module, then type your code into the left hand side.
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.
Hi Nick, are you typing this into the left hand side or right hand side of the IDE? Most modules aren't built into the firmware, the IDE loads it onto the board when you upload code from the right hand side. You could try typing the same code into the right hand side, or type
into the right hand side and click upload, which will load the module, then type your code into the left hand side.