Collection of AVR Programmer Boards and Accessories. AVR development boards can be found here. Special programmers can be found here:

• tinyHVSP: high-voltage fuse resetter for 8-pin ATtinys
• tinyCalibrator: oscillator calibrator for 8-pin ATtinys
• tinyICOC: in-circuit oscillator calibrator for AVR microcontrollers
• picoDAP: CMSIS-DAP compliant SWD Programmer

Simple and cheap UPDI programmer for tinyAVR, megaAVR and AVR-Dx microcontrollers with voltage selection switch (5V and 3.3V). The programmer works with pyupdi as well as with the Arduino IDE as "SerialUPDI". It is based on the USB-to-serial chip CH340N.

The simple and cheap High-Voltage Serial UPDI Programmer is a device designed specifically for tinyAVR microcontrollers. This programmer includes a target voltage selection switch that allows users to choose between 5V and 3.3V for their project needs. With this device, you can use the additional configuration settings for the UPDI pin without worrying about getting locked out from the MCU. It utilizes the MT3608 Boost Converter IC which generates the 12V pulse required for high-voltage activation of the UPDI pin. The programmer operates similarly to a standard SerialUPDI programmer and is compatible with popular development environments like the Arduino IDE, where it appears as "SerialUPDI".

The CH55x-based picoISP is a simple and cheap USB-based in-system programmer (ISP) for AVR microcontrollers with voltage selection switch (5V and 3.3V) and compatible with the USBtinyISP or the USBasp depending on the firmware. The picoISP supports a wide range of AVR microcontrollers, including the ATtiny and ATmega series, and can be used with a variety of software development tools such as the Arduino IDE, Atmel Studio, and AVRdude.

The CH55x-based picoAVR is an ISP and UPDI combo programmer for AVR microcontrollers compatible with the USBtinyISP and SerialUPDI. It works fine with the Arduino IDE (Tools -> Programmer -> USBtinyISP / Tools -> Programmer -> SerialUPDI). This combo programmer includes a target voltage selection switch that allows users to choose between 5V and 3.3V for their project needs.

Simple and cheap USB-to-Serial converter based on CH340E with voltage selection switch (5V and 3.3V).

USB ISP/TPI Programmer Stick for Atmel AVR microcontrollers with 5V and 3.3V target voltage based on the design by Thomas Fischl.

Simple USB ISP Programmer Stick for Atmel AVR microcontrollers based on the ATtiny45/85. More information can be found at https://dicks.home.xs4all.nl/avr/usbtiny/.

USB ISP/TPI Programmer for Atmel AVR microcontrollers based on the design by Thomas Fischl.

USB ISP Programmer with buffer for Atmel AVR microcontrollers based on the design by ladyada.

Simple USB ISP Programmer for Atmel AVR microcontrollers. More information can be found at https://dicks.home.xs4all.nl/avr/usbtiny/.

AVR programmer adapter for 8-pin ATtiny microcontrollers for converting:

• 6-pin ICSP connectors,
• 10-pin ICSP connectors,
• 8-pin SOP8/SOIC8 adapters,
• 8-pin SOP8/SOIC8 clips,
• 8-pin DIP8 chips.

The AVR Programmer Adapter Maxi makes it easy to program SMD ATtinys and ATmegas in SOIC-8, SOIC-14 and TQFP-32 packages.

Probably the simplest UPDI programmer for tinyAVR, megaAVR and AVR-Dx microcontrollers. The programmer works with pyupdi as well as with the Arduino IDE as "SerialUPDI". It is based on the USB-to-serial chip CH330N or CH340N.

UPDI Programmer (jtag2updi) for tinyAVR, megaAVR and AVR-Dx microcontrollers built on ATmega8/88/168/328 based on the design and firmware by ElTangas.

Mini UPDI Programmer Stick (jtag2updi) for tinyAVR, megaAVR and AVR-Dx microcontrollers built on ATtiny1604/1614 based on the design and firmware by ElTangas. Program the new ATtiny devices with a new ATtiny device!

HV UPDI (High-Voltage Unified Program and Debug Interface) Programmer for tinyAVR, megaAVR and AVR-Dx microcontrollers built on ATmega8/88/168/328 based on the design and the firmware by Dlloydev. The HV UPDI Programmer will enable you to use the additional configuration settings for the UPDI pin without the fear of getting locked out from the MCU. It features 3 programming modes: UPDI, HV or PCHV, with the target voltage at 5V.

Mini HV UPDI (High-Voltage Unified Program and Debug Interface) Programmer Stick for tinyAVR, megaAVR and AVR-Dx microcontrollers built on ATtiny1604/1614 based on the design and the firmware by Dlloydev. The Mini HV UPDI Programmer Stick will enable you to use the additional configuration settings for the UPDI pin without the fear of getting locked out from the MCU. It features 3 programming modes: UPDI, HV or PCHV, with the target voltage at 5V.

USB to serial converter based on the CH330N (or CH340N) chip with 5V or 3.3V logic.