Re-Programming the LilyTiny / LilyTwinkle

Contributors: bri_huang

Resources and Going Further

The TinyAVR Programmer is a real slick way to re-program the ATTiny45 or ATTiny85 chips. However, it does require that you install a few additional drivers. You can use this programmer directly with the Pomona 5250 SOIC clip. This programmer already has a debug LED on pin 0. We have a full hook-up guide for the Tiny AVR Programmer here.

For more information regarding the ATtiny85, LinyTiny/Twinkle or more AVR programming tutorials, check out the following links:

• High-Low Tech Tutorial -- An overview of programming the ATtiny85 using an Arduino Uno as a programmer.
• Quick Reference Guide for ATTiny85
• GitHub LilyTiny / LilyTwinkle Repo
• Default Firmware
  • LilyTiny Arduino Sketch (ZIP)
  • LilyTwinkle Arduino Sketch (ZIP)
• ATtiny85 Board Definitions -- The attiny folder should live within a hardware folder in your Arduino sketchbook.
• Tiny AVR Drivers
  • 32-bit USBTinyISP Driver -- Windows driver for 32-bit systems
  • 64-bit USBTinyISP Driver -- Windows driver for 64-bit systems

Need some inspiration for your next project? Check out some of these related tutorials:

• H2OhNo! -- The H2OhNo! water alarm and development board uses an ATtiny85 to sense the presence of water. This tutorial goes deep into getting the ATtiny85 into a very low power mode.
• Shift Registers -- If you're feeling restrained by the ATtiny's lack of pins, you may be able to use a shift register to expand on that I/O count.
• Using the Arduino Pro Mini 3.3V -- If you're looking for small, but need more pins and functionality check out the Arduino Pro Mini.
• Installing an Arduino Bootloader -- You can use the Tiny AVR Programmer to program all sorts of AVRs, including those on most Arduino-compatible boards. If you ever find yourself needing to reprogram your Arduino bootloader, the Tiny AVR Programmer should be all you need.

Or check out these tutorials using the Attiny.