Reply To: Node-red Convert Hex number into signed floating number

Hi there,

I have solved this by using following command.

var battery = ((msg.payload).slice((msg.payload.length)-9,(msg.payload.length)-8));
var rBuf_battery = new Buffer(battery,'hex');
var battery_val = (rBuf_battery.readInt8(0));

readInt8(0) function can be readUInt8(0) for unsigned number. Also depending the length of hex number this function can also be write as readInt16(0) and readInt32(0).

Thanks