A more reliable pippyg

PROJECT FILES UPDATED 3rd November 2025

Changes :

Component simplification and reduction for cost reduction

Single-channel ST op-amp replaces Microchip dual

Push-pull Molex SD socket replaces unreliable and failure-prone sprung socket

DigiKey parts list : https://www.digikey.co.uk/en/mylists/list/BNPFOK7LD4

ANY ORDERS PLACED ARE ENTIRELY AT YOUR RISK.

NOTE - THIS IS PROVIDED BY THE DESIGNER AS A SELF-BUILD PROJECT FOR HOBBYISTS AND BAT ENTHUSIASTS.

PCBWAY IS NOT AUTHORISED TO ASSEMBLE THESE FOR YOU, AS THERE IS AN EXISTING COMMERCIAL MANUFACTURING PARTNERSHIP IN PLACE.

ANY ASSEMBLY ORDERS WILL BE CANCELLED.

Build cost is now down to approx £12.50 per device when building 10.

This version of the 3D print file makes a single mount, so if you want to build 10 PCBs, you now need to order 10 (TEN) 3D prints. The 3D prints are under $2 each and are well worth it, they make assembly so much easier. If you have your own 3D printer you can download the STL file below.

UNDER NO CIRCUMSTANCES MAY ANY DEVICES BUILT BE EITHER RESOLD, OR OFFERED FOR SALE. 

THIS PROJECT IS SUPPLIED ON A STRICTLY NON-COMMERCIAL BASIS. I MAKE NO MONEY FROM THIS PROJECT, AND IN RETURN, BY BUYING PCBS HERE, YOU COMMIT TO MAKE NO MONEY FROM THIS PROJECT. 

BE NICE, OK?

NOTE TO PCBWAY ENGINEERS - THIS IS NOT A PANELIZED DESIGN. The area at the top snaps off to allow buyers to build a frame for solder stencil work without wasting PCBs. Please do not charge more than $5.