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Newest 'arduino-leonardo' Questions - Arduino Stack Exchange
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Learn more about TeamsQuestions tagged [arduino-leonardo]
An Arduino board based on the ATmega32u4 chip with built in USB HID functionality
331 questions
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0
votes
0
answers
35
views
Need Help Communicating with Arduino Leonardo Using Custom Bootloader
I have an Arduino Leonardo that has been flashed with a custom bootloader, and it currently has a sketch on it that I cannot replace or modify because doing so would brick the board. The board works ...
2
votes
2
answers
820
views
How can I stop digital pins from floating at reboot?
I've got a LattePanda 3 Delta, which runs windows on its main processor and an Arduino sketch called StandardFirmata on its coprocessor. It's connected to a lock, which locks at HIGH and unlocks at ...
0
votes
1
answer
76
views
atmega32u4 connect PC
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?
-1
votes
1
answer
135
views
Joystick library not reading potentiometer
I am using Joystick Library to make a HOTAS system for flight simulators. When I load the test program I can get all the simulated controller inputs to register in windows. I can also get the value ...
0
votes
1
answer
3k
views
Change USB VID and PID (Leonardo)
I'm new to using electronic boards, and have followed a guide online for printing a 6 DoF (degree of freedom) mouse. I'm stuck on an optional step that requires me to change the PID and VID of a "...
-1
votes
1
answer
113
views
Arduino Leonardo Key Detector
I want to make an arduino code on the arduino leonardo that detects when keys are being pressed and to print them to the serial monitor so I can control the arduino with the computer keyboard. I need ...
-2
votes
1
answer
85
views
L LED on Arduino is constantly on and com is not detected
When I connect the Arduino to the computer, the L LED is constantly on and com is not detected. However, when I press the reset button, the L LED starts blinking for about 10 seconds and com appears. ...
-1
votes
1
answer
56
views
Arduino pin erratic behavior?
I've built a switch key matrix (thus the diode, contextually useful schematics below) and me being me, I realised after that I misunderstood a few things about how button really works, to say the ...
-1
votes
2
answers
670
views
Arduino Pro Micro not recognizing INPUT or INPUT_PULLUP
I tried to make a controller box with multiple buttons. Sadly, when I tried to connect the buttons, the Arduino Pro Micro didn't recognize them being pressed. I even tried to connect a wire directly (...
2
votes
1
answer
178
views
Improving moving mouse loop to optimize speed
Code:
#include <Mouse.h>
#include <hiduniversal.h>
#include "hidmouserptparser.h"
#include <USBController.h>
USBController controller;
USB Usb;
HIDUniversal Hid(&Usb);
...
1
vote
0
answers
156
views
Cannot change fuses on ATmega32U4
I have a custom board based on Arduino Leonardo (ATmega32u4).
As usual I used the Arduino IDE to burn the bootloader with my Atmel ICE ISP programmer.
This time it failed complaining about some errors ...
1
vote
1
answer
1k
views
help with error: cant open device "\\.\COM6":Access is denied
I built a new pc which I use as a flight simulator. On my old PC I had ArduinoIDE for programming a pro micro as well as a teensy 4.1 using the teensyduino library. I installed all the necessary ...
0
votes
0
answers
284
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 ...
1
vote
0
answers
588
views
Arduino lagging or buggy with delays and serial print?
I got a strange issue with my Arduino Leonardo (clone). It seems to be laggy or buggy, I don't know what the issue is.
I get issues when I use "long" delays.
Below sketch is working fine.
...
0
votes
0
answers
174
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....
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serial × 41
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arduino-pro-micro × 24
keyboard × 21
bootloader × 17
uploading × 15
programming × 14
bluetooth × 13
power × 11
c++ × 11
arduino-micro × 10
avrdude × 9
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