1Pcs USB Micro USB interface ATTINY85 module Programmer Development Board I/O Pins for Arduino I2C USB ATTINY85 20PU PCB board|Instrument Parts & Accessories| - AliExpress
Adafruit PCB design board Trinket 6-Pack - 3 x 3.3V and 3 x 5V Trinkets AVR® ATtiny ATtiny85 | Conrad.com
Digispark Micro USB Development Board Prototype Circuit PCB Attiny85 Arduino | eBay