GSM Sensors

Project contains three different PCbs. The big one (black soldermask) is the main board with Gsm M95 Quectel Chip. There are also Uart transsmision provided on the board, Sim interface and battery supply circiut. The small one (red soldermask) is LC sensor board to count wirelessly revolutions of rotating disc, which simulates flow of the medium (water or gas). The third PCB (not on the photo) is small disc, half covered by the copper.