![]() ![]() So all I had to do was connect my redboard to my computer, then send the ISP code from the Arduino IDE to my redboard just like normal, and voila, I now have a ISP. This was shockingly easy! The Arduino IDE comes with Arduino ISP code in the Examples section by default. Programming an ATmega328p without the Arduino IDE.Directly Programming an ATmega328p from an Arduino Uno.This is a part of my series on programming atmega328p NOTE: that last step is non-optional when I’m playing with tech connect it to the ISP and flash a new program on it.validate the ATmega328p can run my blink program while sitting on the breadboard, getting no help from the Arduino PCB.Remove the ATmega328p chip from my arduino uno, put it on a breadboard.Change the Fuse setting so the ATmega328p chip uses the internal clock instead of external.Take my existing Redboard, make it into an ISP (In-circuit Serial Programmer).So, using Mitch Davis’ playlist as a basis, I decided to do the following: This sort of content is exactly up my alley, and I realized I had an Uno kicking around, plus a sparkfun version of an Uno, a sparkfun redboard. Mitch Davis’ Bare-Metal MCU playlist walks you through taking all the helpful things Arduino gives you, and removing them one by one. ![]() Well I came across a youtube playlist recently that gives a resounding yes, yes you can. So is it possible to remove all the stuff Arduino gives you, take just the chip, and directly program the ATmega328p? On the standard Arduino Uno, it comes as a chip that you can remove from the board, so if you fry it on accident, you can replace just the chip instead of the whole board. So Arduino’s brains is a ATmega328p microcontroller. ![]()
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