We are using various tools for this project.
- The software to design the PCB is www.kicad-pcb.org
- Most of the time, our PCB supplier is www.pcbway.com in Shenzhen
- The software to built the cases is Solidworks (with licence)
We now have a long history of trials with various uC and Chip. After 3 years of development, we now think we have a stable version for beta testing