LEGO PCB mount with LED
In Electronics PCB world,
0.1" is a standard spacing or pitch for ICs, connectors etc. for many, many years.
In LEGO world,
8mm pitch and
4.8mm diameter hole is its gold standard. (LEGO brick dimension drawing link)
Here is a useful trick to unite the two together with LEDs.
You simply spread several
0.1" through-hole LEDs (5mm OD LED on LCSC) on your PCB, with
8mm spacing center-to-center.
Once you solder the through-hole LEDs, the PCB can plug into any LEGO piece or technic beam very tightly.
After that, it’s only limited by your LEGO imaginations to e.g. mount the PCB or build an enclosure for your electronics.
The module in the picture has one MSP430F2230 MCU, six LEDs arranged in Charlieplexing way, so only 3 GPIOs are needed. The six LEDs implement a simple digital dice program.
Bulk buy of MSP430F2230 SO-8 MCU and bulk PCBA
each PCB populated with 6 LEDs and one MSP430G2230 8-SOIC MCU with digital dice firmware
Campaign active, scheduled end date: Tue, 16 Mar 2021 15:19:00 PDT
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