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Questions tagged [atmega32u4]

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atmega32u4 is low-power Atmel 8-bit AVR RISC-based microcontroller

107 questions
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0 votes
1 answer
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I want to run my 32u4 in 2MHz. According to gammon I will gain 4mA in runtime. To my understanding this changes all the buses speed like UART, USB?, I2C?** and SPI?*. Probably I will have problems to ...
krg's user avatar
  • 15
0 votes
1 answer
91 views

I made a custom PCB with C-type USB and atmega32u4 (arduino leonardo). But my PC doesn't recognize the atmega32u4. Here are my schematic. Why my PC doesn't recognize the pcb in schematic?
hyunseob kim's user avatar
  • 1
2 votes
2 answers
333 views

How to detect, if Serial is really connected to listening PC program? (on atmega32u4) I need to connect from PC to Arduino Micro Pro over USB Serial and disconnect again and not slow down the Arduino ...
gilhad's user avatar
  • 1,466
2 votes
1 answer
246 views

I’m working an Arduino program that uses the FastLED library and is all coded in the Arduino IDE (not my choice, just a result of this OOS library). However, I don’t want to run this on an “Arduino” ...
Felix Jen's user avatar
  • 123
2 votes
1 answer
3k views

I have the beetle board, a Leonardo clone same as in this question. Using the reset pin and quick hands on the keyboard, I am able to flash with avrdude and get also the board info with a command ...
Simson's user avatar
  • 123
2 votes
1 answer
835 views

I am trying to upload an hex file to my arduino pro micro using Avrdude . The thing is that I cannot upload any code using the Avrdude terminal commands , but when I use arduino IDE to upload any code ...
santiago's user avatar
  • 29
0 votes
0 answers
294 views

I have a USB powered board, that should consume as little power when idle as possible, while keeping the USB connection alive. The device only sends data to the host, doesn't receive any, so the ...
Dakkaron's user avatar
  • 239
-1 votes
2 answers
627 views

I have a Spark Fun Pro Micro (ATmega32U4) without a USB connection (it was broken off at an earlier point) that I want to use to duplicate a prototype running on another Pro Micro. How can I upload a ...
InkyDigits's user avatar
  • 119
2 votes
1 answer
423 views

The question is meant as in, can I lock myself out of the Arduino using the bootloader, if I flash a hex file that doesn't contain the bootloader? Or does the bootloader automatically add the flashed ...
Dakkaron's user avatar
  • 239
0 votes
0 answers
181 views

I have a custom Leonardo board (mega32u4-based) that does not use at all the USB features. When I build my sketch (vscode and platformio) I read: Compiling .pio/build/leonardo/FrameworkArduino/CDC.cpp....
Mark's user avatar
  • 393
3 votes
1 answer
341 views

I need help in writing some code that will allow for the ATMega32u4 to be aware of when it's plugged into a USB port. I'm not really familiar with the ATMega32 or with it's function in Arduino, so I'm ...
Jay's user avatar
  • 135
0 votes
1 answer
158 views

I currently try to build some Drums for the game Clone Hero. The problem that I have is that I can't use both of my Piezo inputs that I have hooked up at the same time. I have a Arduino Pro Micro and ...
DuddiSuppe's user avatar
  • 3
1 vote
0 answers
661 views

Hi everyone, first time here on the forum, so, apologies if I'm doing anything incorrectly. Long story short, I built a device that takes voltages in and transform them into midi data. I used an ...
nn_mic_nn's user avatar
  • 11
1 vote
1 answer
329 views

Greetings to all members of the Forum. I would like to express my deepest gratitude, with respect to the title of this post. The last week I am trying to capture and decode a PPM Signal from an RC ...
k. theodosis's user avatar
  • 11
0 votes
1 answer
784 views

I recently bought an ATmega32U4 based Arduino Pro micro. I am using the Keyboard library and interfacing with my PC via USB. I am trying to create a serial communication between the Arduino Pro micro ...
Rishabh's user avatar
  • 3

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