SDG #157 Completing the RGB Touch Controller and Europacket delivery from JLCPCB

This episode wraps up the RGB touch controller project, moving it from a partly populated prototype to a working board. The controller is built around a dsPIC microcontroller with capacitive touch input driving RGB LED output, and the focus here is on the practical side of getting the last components placed, reflowed and verified rather than on theory.

The build work covers stencil-free paste application, hot air reflow of the remaining fine pitch and passive parts, and the usual post-reflow inspection under the microscope to catch bridges and tombstoned passives before power is applied. Anyone attempting a similar dsPIC design will find the ordering of assembly steps useful: getting the supporting passives and regulator circuitry correct before the MCU saves a lot of rework, and flux choice makes a visible difference to how cleanly the smaller parts pull into place.

The second half deals with a PCB order arriving by Europacket rather than a courier service, which matters for hobbyists in the UK and Europe weighing shipping cost against transit time and customs handling. The packaging condition, board finish and general fabrication quality of the received panels are assessed, giving a realistic sense of what to expect from a low cost prototype run.

Taken together, the video is a decent reference for two separate questions: whether a home hot air setup can reliably assemble a mixed-technology controller board, and whether the cheaper economy shipping tier is worth the wait for non-urgent prototype PCBs. Gerber files for the controller are published, so the design can be replicated directly.