In order to upload to an Arduino board via a serial port, the upload tool (e.g., AVRDUDE) must be able to open the port. This is not possible if another process already has control of the port.

It was an interface that launched a thousand hacks. Near trivial to program, enough I/O lines for useful work, and sufficiently fast for a multitude of applications: homebrew logic analyzers, chip ...

[Hans Peter] wanted to move away from using full Arduino boards in his projects. One of the components he rarely used after the development stage is the USB hardware. Once the firmware is flashed to ...

Arduino programmers, makers and developers that are looking for a small Arduino Programmer device might be interested in the VisiPort2. The VisiPort2 is a USB To Serial module that has been ...

SparkFun’s latest development board, the ESP32 Qwiic Pro Mini, puts the Espressif ESP32-PICO-MINI-02 on a compact Arduino Pro Mini footprint. It also includes an onboard QWICC connector for easy ...