I need to develop a 4G CAT1 tracker with SIMCOM A7672SA(with gps). Electronic Schematic(Diagram), PCB, Firmware, functional prototype
Let's use the microcontroller of the SIMCOM module itself
1- positive input(acc)
1- Negative Input
2 - negative output
Input power from 9 to 80v.
Internal battery backup.
With internal battery voltage reading and external power supply.
Firmware according to the attached protocol.
19 freelancer chào giá trung bình$3061 cho công việc này
hello im electronics engineer, i've previously participated in similar projects, i can deliver the design and improve it so it meet your full requirements, please consider my offer im pro