05 TinyDev ATtinyX5 - maxint-rd/arduino-modules GitHub Wiki

Narrow form factor development board for ATtiny85, ATtiny45 and ATtiny13A. Minimal hardware design featuring only MCU, breadboard friendly headers with extra power lines, ICSP header for serial programming and reset button.

05_TinyDev_ATtinyX5

Schematic/PCB: https://easyeda.com/Maxint/mini-attiny85-development-board

Watch this video to see how the module was made and tested:

Made: JLCPCB TinyDev TM1637 modular LED matrix clock with ATtiny85

Programming

To program the ATtiny, I prefer to use the USBASP programmer (the version with a JP3 jumper for slow programming). The ISP connector on the board makes it easy to connect the programmer.

ISP pinout:

pins
red 1 MISO 6 VCC
white 2 SCK 5 MOSI
blue 3 /RST 4 GND

03_TinyDev_ATtinyX5

To program the ATtiny85, 45 and similar using the Arduino IDE you can use the ATTinyCore by Spence Konde (aka Dr. Azzy). To program the ATtiny13A using the Arduino IDE you can use the MicroCore by Hans (aka MCUdude).