[SOLVED] Leonardo doesn't show up anymore (COM or HID) - Arduino …
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 able …
Arduino Leonardo cannot be recognized by Windows
Dec 18, 2024 · When I open the Arduino IDE and go to "Select Board," I can see the port I connected (COM1), but its name is "Unknown." I clicked "Select other board and port" and manually selected …
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 light are …
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 continuously. …
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: Arduino …
Xloader + Leonardo - Uploading - Arduino Forum
Jun 18, 2024 · Hello dear, has anyone used the Xloader program to load programs to the Arduino Leonardo? I have used it for the Arduino Mega and UNO, but I don't see the option for other models.
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 tried to tinker …
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 slave First my …
Problem with SPI pins on Arduino Leonardo
Nov 29, 2023 · Hi ! In the Leonardo pinout, it's indicate that pins 11, 12 and 13 correspond to the COPI, CIPO and SCK SPI pins respectively. Unfortunately, when we look at the schematic in the interactive …
Leonardo schematics Rev3d & Rev3b - Arduino Forum
Oct 22, 2022 · There is a false point on the Rev3d scheme (see diagram below), which remains from the Rev3b scheme. Is it a mistake? How should the AVVC & AVCC1 be connected correctly? Are the …