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  1. Arduino MINI Pinout Diagram - General Guidance - Arduino Forum

    Arduino Mini Pinout 1753×1240 440 KB Topic Replies Views Activity Arduino MINI Pinout Diagram Generale 4 5140 May 7, 2021 Arduino Nano MISO & MOSI pins Classic Nano 5 857 August 8, 2025 …

  2. Pro-Mini vs Mini - Pro Mini - Arduino Forum

    Jan 25, 2025 · About 60 of them only program as "Arduino Pro or Pro Mini" (Atmega 328P 3.3V 8MHz) About 20 only program as "Arduino Mini" (Atmega 328P) All 80 devices communicate correctly, eg: …

  3. Mini Pro + FTDI basic breakout: not in sync - Arduino Forum

    Apr 10, 2016 · Hi everyone, I'm currently setting up my Arduino Mini Pro (5V, ATMega328, 16MHz) so I can program it. When I try to upload code to the Arduino Mini Pro, I get the following error: avrdude: …

  4. How to tell if Pro Mini card is 3.3V or 5V - Arduino Forum

    May 7, 2024 · Lost and confused. Bought on Ebay in 2020 as "Pro Mini 3.3V 8M 5V 16M Atmega328P Board Replace ATmega128 For Arduino Nano" Here are photos of both sides, can't tell if I run this …

  5. Uploading to pro mini fails - Arduino Forum

    Oct 24, 2023 · A Trinket is an Arduino compatible board made by Adafruit. Many 3rd party boards need a boards/cores package to be installed to enable the IDE to work with/support them. Pro Mini is one …

  6. Programming Pro Mini issue - Arduino Forum

    Oct 22, 2024 · Setup: Arduino IDE 1.8.13, Arduino AVR boards 1.8.6, using Pro Mini 328P 16MHz. It has been a while since I programmed this board, then using a CP2102 UART. Uploading used to be …

  7. Arduino pro mini uploading not working

    Mar 18, 2025 · Burn a New Bootloader - Arduino Pro Mini Burn a New Bootloader - Arduino Pro Mini: I wanted to re-purpose an Arduino Pro Mini that I hadn't used for a while, so - as I do with all the …

  8. MiniCore - An Arduino core for the ATmega8/ 48/ 88/ 168/ 328

    Jul 11, 2016 · Hi! Last year I accidentally ordered an ATmega328 instead of an ATmega328p. I thought there wouldn't be a problem using the ATmega328 in Arduino IDE, but I was completely wrong. All …

  9. Custom Arduino Pro Mini stuck on uploading

    Jun 26, 2025 · I'm using the arduino IDE and using a commercial arduino pro mini as ISP to burn the bootloader. And what were your settings when burning the bootloader, and what are your settings …

  10. Pro Mini flashing red LED, seemingly died - Arduino Forum

    Apr 13, 2019 · I am quite new to arduino, so I wouldn't be suprised if this is caused by a mistake I made. I very recently recieved my first Pro Mini's (a 5v and a 3.3v pair). After soldering on the provided …