There are 2 PCB. First one is named as "Motherboard" and second one is "Sensorboard". Smartwatch design capable of measure PPG,ECG,SPO2,body temperature and connecting internet via NB-IOT band.
Motherboard and Sensorboard
In this screenshot both two PCBs of the smartwatch were mated.
Smartwarch PCBs
It has an esim inside and able to connect bluetooth devices. Also it has a built-in gps. You see 3 separate PCBs that combine to form the smartwatch.
Smartwatch PCBs in predesigned case.
case not designed by me.
RFID Reader Main Card
with DHCP Support
Mifare USB Tag Reader
works as USB keyboard & also supports RS485
Mifare USB Tag Reader
works as USB keyboard & also supports RS485
Mobile Biometric Identification System
also known as MOBIVA
Mifare Access Control System
based on Raspberry Pi & Microchip PIC programmed in Python & C
Mifare Access Control System Main Card
based on Microchip PIC & programmed in C
Mifare RFID Access Control System Reader & Main Card
