Adafruit trinket attiny85 arduino compatible adafruit 1501 the adafruit trinket 5v mini microcontroller is a tiny 27 x 15mm arduino compatible processor board which is programmable via its micro usb socket its attiny85 processor has 8k bytes of flash programme memory 512 bytes of sram static ram and 512 bytes eeprom and runs at up to 16mhz the board is capable of outputting 150ma and has an ultra low drop out regulator which will switch between usb and battery supply automatically a