Some Toner-Transfer PCB Highlights

Some recent highlights from my home-made circuit boards using the toner-transfer method.

0.5 mm FPC breakout board

Yes, I have been told that I am crazy before… Designed in KiCAD

0.5 mm pitch FPC breakout board – before etching

0.5 mm pitch FPC breakout board – half-way etched

0.5 mm pitch FPC breakout board – almost done

0.5 mm pitch FPC breakout board – soldered

This one is actually not my design and it was drawn in Altium.

TQFP32 controller board – before etching

TQFP32 controller board – during etching

TQFP32 controller board – after etching

…another recent student project. Designed in KiCAD.

433 MHz wireless sensor node with Arduino nano – peeling off the paper

433 MHz wireless sensor node with Arduino nano – before etching

433 MHz wireless sensor node with Arduino nano – during etching

433 MHz wireless sensor node with Arduino nano – after etching

Designed in KiCAD.

SMD multivibrator with two blinking LEDs

Designed in KiCAD

Final assembly in the 3D-printed casing.

Front side of the finished circuit board with all 32 smd push-buttons in place.

The etched, drilled and tinned circuit board.