I just tried this and ran into the same problem (exact same module).
It works on my Arduino Uno with 3,3V and 5V (the address is 0x3c)
Did you supply the 5V directly or via the Espruino Bat? Because when I supply 5V via the Espruino it still won't work...
@stozk started
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.
I just tried this and ran into the same problem (exact same module).
It works on my Arduino Uno with 3,3V and 5V (the address is 0x3c)
Did you supply the 5V directly or via the Espruino Bat?
Because when I supply 5V via the Espruino it still won't work...