Skip to main content

Questions tagged [atmega32u4]

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

17 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2 votes
0 answers
1k views

How to enable auto reset in Arduino Leonardo?

I am trying to program an ATMega32u4 microcontroller through arduino IDE. I have added external oscillator(16Mhz) and capacitors and few other connections according to the Schematic. I had put a ...
NaNN's user avatar
  • 21
2 votes
0 answers
349 views

Atmega 32U4 doesn't show on device manager after fuse bits reset

I am finally ready to try setting fuse bits on my ATMega32u4-AU custom board (8Mhz Ceramic Resonators, 3.3V), however, after I set the fuse bits and plug my board to computer, the device manager ...
Harmony Yu's user avatar
2 votes
0 answers
797 views

Bitmap only displays correctly with PROGMEM keyword

I have a bitmap to draw defined as below. PROGMEM const unsigned char ship1 [] = {0x18, 0x3C, 0x7E, 0xFF, 0x81, 0xC3}; It is then used by the arduboy library's draw slow bitmap function like so: ...
kenjara's user avatar
  • 123
1 vote
0 answers
485 views

ATMega32u4 - Sending and receiving data through TX and RX

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
1 vote
0 answers
106 views

Is it possible to program an atmega32 via internet or remotely with Android app?

There is a board with atmega32 microcontroller, sim card and Bluetooth modules. I used to program this microcontroller using a serial port cable. As long as the circuit is able to connect to internet, ...
Davoud's user avatar
  • 111
1 vote
0 answers
144 views

Clocking issues while programming ATMEGA32U4-AU via USB bootloader

Hi, I'm designing a custom board with the ATMEGA32U4, with a GPS receiver and LoRa radio and it is powered from a LiPo battery. Since I'll need to make hundreds of this board later on, I'd like to ...
therman's user avatar
  • 41
1 vote
0 answers
112 views

LUFA with pro micro 3.3v 8mhz not working

I am trying to flash my pro micro 3.3v from sparkfun with a Lufa project to make it act as a pokken controller, i am using this project Github Project I have modified the makefile for 8mhz and set the ...
Percy Jackson's user avatar
1 vote
0 answers
131 views

arduino atmega32u4 beetle extract hex code

I made a program using the Arduino Atmega32U4. As a security issue, I tried to extract the hex code because I wanted to know if this program was duplicated. avrdude -C"\avrdude.conf" -v -V -...
junhi's user avatar
  • 11
1 vote
0 answers
579 views

ATMEGA32u4 Arduino Bootloader Issues

I've been struggling with this issue for a few days on and off now.  I made a custom PCB (schematic) for a smaller Arduino Pro Micro and it works - mostly.  The only issue I had was that the pins on ...
av324192's user avatar
1 vote
0 answers
74 views

Trying to install amforth on Leonardo board

Just got a Arduino Leonardo (with headers) dropped in my lap this week. I've tried experimenting with the Arduino C++ IDE and find it awkward. I have some previous experience with Forth and would like ...
jski's user avatar
  • 111
1 vote
0 answers
60 views

Question about controlling servos with PWM while being able to accurately read the current from a sensor

Hi I am hoping to design a custom board ATMEGA32u4 with practically a Arduino leonardo bootloader. I plan to control up to 12 servos while being able to read back the current sensor voltage of an ...
DST's user avatar
  • 11
1 vote
0 answers
1k views

Can't reset Arduino Pro Micro

I'm trying to reset an Arduino Pro Micro with a new code and it is not allowing me to. I'm using an empty sketch to upload to the pro micro but I get different error messages every time. I think the ...
Katz's user avatar
  • 129
1 vote
0 answers
116 views

Atmega32 push button library problem

I have two files, the first file is a library that I use to handle push buttons and initialize it and the second is where I handle my code and change LED state when push button is pressed, but my code ...
Kareem Essam Gaber's user avatar
1 vote
0 answers
56 views

Get data from a running exe on my pc

I have made a button with an LED using an arduino micro. It's connected to my pc and when I hit the button, the LED activates and a recording on Reaper (digital audio workstation) is started. When I ...
Hendriks3D's user avatar
0 votes
0 answers
207 views

Atmega32u4: Reduce power consumption while keeping USB active

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
  • 229
0 votes
0 answers
149 views

Disable USB support for mega32u4

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
-1 votes
2 answers
409 views

Upload to board with no USB connection

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