Categories: Electronics, Mechanics
| Year: 2022
Objectives
- Connect quickly and effectively to PCB traces
- Be cheap and easy to make
- Allow in-circuit reprogramming of microcontrollers
Process
- Tested various designs for probes
- Decided on clothespin because it pushes down on board
- Designed PCB tip in KiCad, milled on CNC machine
- Designed socket to make swapping probe tips easy, and aligner to keep probe centered
- Socket and aligner 3D printed in PLA
- Socket, aligner and magnets superglued to clothespin
- Clothespins magnetically attracted to base, an extra toaster tray
- PCB secured to base with double-sided tape
Reflection
- Probes were able to program an ATtiny chip in circuit on a PCB- it was a success
- If the magnets were stronger, setup would be easier
- This project was featured on hackaday.com
