An Arduino Nano or a Micro might be the best options If a small board sounds like the most appropriate choice.

According to Arduino, the Nano ESP32 brings plug-and-play IoT deployments to advanced enterprise use cases and hobbyist engineers. The Nano ESP32 18×45-mm development board is available to order today ...

The board is built around an ATtiny3217 and has almost all of the Nano’s features, like a USB port, reset button, built-in LEDs, 5 V regulator, and preloaded bootloader.

Arduino has created a Renesas RA4M1 microcontroller board in its Nano form-factor. Called Nano R4, it follows the Uno R4, the first Arduino to use the RA4M1. “Whether you’re working on a connected ...