[SOLVED] Leonardo doesn't show up anymore (COM or HID)
Feb 20, 2025 · Over Christmas I managed to follow this tutorial to create a HID joystick using the Leonardo. The Windows 11 machine I connected it to recognized it as a HID device, and I was …
Arduino Leonardo cannot be recognized by Windows
Dec 18, 2024 · Problem with Arduino Leonardo IDE 2.x 10 155 October 3, 2025 Arduino Leonardo not recognized by Windows computer Leonardo 3 94 August 6, 2025 Arduino not …
Leonardo is not recognised - Arduino Forum
Apr 20, 2025 · Good day guys,I having a problem on my arduino Leonardo my PC keeps saying last USB device is not recognize and the port was not showing and the arduino ON and RX …
Not detecting Leonardo - Arduino Forum
Jun 4, 2022 · My PC does not detect my arduino Leonardo. Last time I connected the arduino it was also acting weird. I think it is because of a test program that repeats a keyboard stroke …
Comparison of UNO R3, Leonardo, UNO R4 Minima and UNO
Jan 21, 2025 · I recently heard about the Arduino Leonardo which had escaped my attention. I took a look at how it differs to the UNO R3 and also the two R4 boards in Instructables: …
Leonardo schematics Rev3d & Rev3b - Arduino Forum
Oct 22, 2022 · Schematic drawing of Leonardo Rev3d (see below), which is downloaded from the official arduino.cc site, but as an Altium Designer file in the Interactive Board Viewer section …
Leonardo USB connection issue - Uploading - Arduino Forum
Dec 17, 2024 · Hi! I've bought Arduino Leonardo clone, and it was dead out of the box. PC and Mac wouldn't react to it connected at all, all it gave me - green ON led and yellow L led. I've …
Remove Serial Port - Programming - Arduino Forum
May 6, 2023 · I have an arduino leonardo and a USB host shield. I have a working code that allows my mouse to work and move correctly when plugged into the host shield. I realize that …
Leonardo as SPI slave - Arduino Forum
Apr 9, 2025 · I want send data to/from Arduino Leonardo over SPI using wiringPi/pi4j on Raspberry, using custom GPIO as CS. Raspberry is supposed to be the master, and Arduino …
Burning bootloader to Leonardo pro micro - Arduino Forum
Jul 11, 2024 · I have an UNO with wires connected properly to burn a bootloader. It works fine on a 328P chip. But I have a leonardo that I think the bootloader has issues and want to reflash it. …