Wemos as ISP

Description

Wemos as ISP is an interface card that plugs into Wemos mini board ESP8266, to allow the programming of 8-pin ATtiny 25/45/85 controllers and 14-pin ATtiny 24/44/84 controllers

Video tutorial

https://youtu.be/ktZU3sbenOU?si=Dj4A4wVRVGfgxN6n

Hardware

The electronic board project files are found here:
https://github.com/Green-bms/Wemos-as-ISP/tree/master/Wemos%20as%20isp/Kicad
To make or buy the card, the gerber files are here:
https://github.com/Green-bms/Wemos-as-ISP/tree/master/Wemos%20as%20isp/Kicad/export

Software

The sketch to upload to the Wemos Mini card can be found here:
https://github.com/Green-bms/Wemos-as-ISP/tree/master/Wemos%20as%20isp/Arduino%20ide/Wemos_as_ISP

Test circuits

To test the correct programming of the ATtiny microcontrollers I created two test circuits for ATtiny85 and ATtiny84. The wiring diagram is here:
https://github.com/Green-bms/Wemos-as-ISP/blob/master/Attiny%20test/Electrical%20drawing/Attiny%20test%20circuits.pdf The Arduino IDE sketches to load into the Attiny microcontrollers are here:
https://github.com/Green-bms/Wemos-as-ISP/tree/master/Attiny%20test/Arduino%20IDE