Honestly I'm not sure what happens in the iOS version - it would appear to be a recent change. You could try 01 or 0x01?
01
0x01
Also the `Lightblue explorer' app could be worth a try - it's a similar app that might be easier to use
Thank you Gordon, I will give those suggestions a try.
@Terrence 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.
Honestly I'm not sure what happens in the iOS version - it would appear to be a recent change. You could try
01
or0x01
?Also the `Lightblue explorer' app could be worth a try - it's a similar app that might be easier to use