I am trying to writing an application that can take weight measurement from Xiaomi mi scale version 1. I get a hex value like this 0624b2070101002e3800004c04(5.50kg) from the Body Composition Measurement service.
According to my research the first byte gives 02:measurement unit The last two bytes are the weight value, But when I convert this value to decimal and divide by 200, I don't get the correct value.
Can someone help me get the correct data?
The last two bytes are 4c04. Bluetooth sends data in little endian format so as an integer that is 1100.
The "GATT Specification Supplement 4" document at https://www.bluetooth.com/specifications/specs/ says:
3.27.2.7 Weight field
This field is in kilograms with resolution 0.005 if the bit 0 of the Flag field is 0 or in pounds with a resolution of 0.01 if the bit 0 of the Flag field is 1.
1100 * 0.005 = 5.5kg