OK - does not work for me either.
I have not hardcoded the MAC but search for devices with the corresponding service:
function setLight( r, g, b ) { var gatt; var c; console.log( "rgb=", r, g, b ); NRF.requestDevice( {filters:[{services:["FF02"]}]} ).then( dev=>{ console.log( "found", dev.name ); return dev.gatt.connect(); }).then( g => { console.log( "connected" ); gatt = g; return gatt.getPrimaryService("FF02"); }).then(function(service) { console.log( "service found" ); return service.getCharacteristic("FFFC"); }).then(function(characteristic) { console.log( "characteristic found" ); c = characteristic; return c.readValue(); }).then( v => { console.log( "value", v ); return c.writeValue(String.fromCharCode(0,r,g,b)); }).then( r => { console.log( "result", r ); gatt.disconnect(); console.log("Done!"); }); } var col = 1; setWatch( evt => { var long = ( evt.time - evt.lastTime ) > 0.2; if( long ) { setLight( 0, 0, 0 ); } else { col++; if( col > 7 ) col = 1; console.log( "col", col ); setLight( col & 1 ? 0xFF : 0, col & 2 ? 0xFF : 0, col & 4 ? 0xFF : 0 ); } }, BTN, { edge: "falling", debounce: 50, repeat: true } );
readValue()correctly returns the 4 bytes (white-red-green-blue) I have written with LightBlue to Service FF02 / Characteristic FFFC before.
readValue()
But writeValue()does not do or return anything.
writeValue()
@Gordon: You are right. LightBlue shows WriteWithoutResponse for the Characteristic in question by the way.
WriteWithoutResponse
Is that something the puck BLE code does not handle yet?
2 Attachments
@ChristianW 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.
OK - does not work for me either.
I have not hardcoded the MAC but search for devices with the corresponding service:
readValue()
correctly returns the 4 bytes (white-red-green-blue) I have written with LightBlue to Service FF02 / Characteristic FFFC before.But
writeValue()
does not do or return anything.@Gordon: You are right. LightBlue shows
WriteWithoutResponse
for the Characteristic in question by the way.Is that something the puck BLE code does not handle yet?
2 Attachments