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Powering an Atmega328p through the USB VBus pin on a hobby PCB I'm making. Is it safe? What protections should I add?: a fuse? Polarity protection? : r/AskElectronics
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avr - I can't flash my new ATMega328p with PL2303 USB-TTL converter - Electrical Engineering Stack Exchange
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Nano V3.0 ATmega328P Compatible Board for Arduino Mini USB Cable Unsoldered USA – ASA College: Florida
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Olearn Mini Nano V3.0 Atmega328p Microcontroller Board W/USB Cable for Arduino - China A4988 Compatible Stepstick Stepper Motor, CPU Heatsink | Made-in-China.com
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