Pogo-pin programming clip for Sonoff S31 modules

This pogo-pin clip is designed to facilitate the reprogramming of the Sonoff S31 module without the need for soldering to the pads on the circuit board.

The pogo-pins I used are 0.68 mm in diameter and 16 mm in length. The holes needed to be cleaned out with a 0.7 mm drill bit, and I further secured the pins with a drop of superglue.

The Sonoff S31 smart switch is useful for DIY home automation, since it contains and ESP8266 chip and can be reprogrammed via the arduino IDE.

The r3 version is shown in the photos. I removed some material around the pins in the r4 version to allow for easier connections.

Print instructions

Category: Electronics Print Settings

Printer: Modified Lulzbot TAZ 5

Rafts: No

Supports: No

Resolution: 0.2 mm

Infill: 20 %

Filament: ColorFabb XT PETG light blue