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How to connect ATtiny85 for In-system Programming (ISP) while already hooked up to sensors and output devices? - Microcontrollers - Arduino Forum
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ATtiny85 Programmer with ISP « Adafruit Industries – Makers, hackers, artists, designers and engineers!
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ATtiny85 ISP! kit – Arduino Compatible (w/ATtiny85 microcontroller) – Rullywow DIY Guitar Pedal PCB Store
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