USBasp AVR Programmer
🔌 USBasp – AVR In-Circuit Programmer
Overview
The USBasp is an open-source USB-based in-circuit programmer for Atmel AVR microcontrollers (e.g. ATmega328, ATtiny series). It features onboard ATmega8/88 firmware, supports programming via ISP (6- or 10-pin), and works across Windows, macOS, and Linux.
Key Features
USB interface (no special USB controller required)
Supports both 6-pin and 10-pin ISP connectors
LED status indicators show power and programming activity
Jumper for "slow clock" ensures compatibility with low-frequency targets
Can optionally power the target device (3.3 V or 5 V)
Open-source hardware and firmware design
Typical Usage – AVR Programming
Connect USBasp to your PC via USB cable
Connect 6‑pin ISP cable to your AVR board (pins: MOSI, MISO, SCK, RESET, VCC, GND)
Optionally enable slow clock or power jumper as needed
Use tools like AVRDUDE, Arduino IDE, or Atmel Studio to upload .hex or burn the bootloader
Applications
Programming and debugging AVR microcontrollers in prototype circuits
Burning bootloaders on custom or blank AVRs
Flashing firmware onto ATtiny or ATmega MCUs
Educational environments for microcontroller learning
Open-source hardware development
✅ Resources
🎥 YouTube Tutorial –https://youtu.be/ToKerwRR-70?si=dnLeQ6HPZxffWPh6