CuVoodoo #028 - every electron counts
Channel: CuVoodoo
Date: 17/09/2020

To figure out the energy budget provided by a solar panel for a weather station, I needed a device capable of measuring low DC voltages and currents over a long period of time.
For that I used the USB Power Meter (UPM) Web-U2, but I first had to reverse engineered the BLE and USB communication protocols it provided.

comments are welcome on original post: https://www.cuvoodoo.info/cuvoodoo-028-every-electron-counts/

00:00:00 counting electrons
00:00:14 opening
00:00:22 introduction
00:00:42 weather station
00:01:13 solar panels
00:02:10 spark abacus
00:02:34 multimeters
00:03:22 USB power meter
00:04:16 web-u2
00:05:49 BLE
00:07:25 familiar UUID
00:07:39 HM-10 UART-BLE
00:08:17 U2 BLE
00:08:42 monitor serial
00:11:26 integer encoding
00:12:38 endianness
00:13:29 float encoding
00:14:22 decoding data
00:14:37 simulate device
00:16:00 U2 Bluetooth logger
00:16:40 USB interface
00:17:08 USB sniffing
00:18:25 USB decoder
00:18:46 test setup
00:19:45 visualization
00:21:11 closing
00:21:14 puzzle