
Raspberry Pi Pico W
Dev Board
Wireless microcontroller board featuring the RP2040 dual-core Cortex-M0+ processor with built-in WiFi 4 and Bluetooth 5.2 (BLE). Supports MicroPython, CircuitPython, and C/C++ development.
RP2040264 KB2 MB26 GPIOWiFi WiFi 4 (2.4 GHz)BLE BLE 5.2
~$6View

LOLIN D1 Mini V3
Dev Board
Compact WiFi development board based on the ESP8266-12F module. Features 4 MB flash, 11 digital I/O pins, Micro-USB, and a rich shield ecosystem. One of the most popular boards for IoT projects.
ESP826664 KB4MB11 GPIOWiFi WiFi 4 (2.4 GHz)
~$4View

M5Stack Single Live Wire WiFi Smart Switch
Dev Board
ESP32-C6 based WiFi smart switch for single live wire AC power control. Supports WiFi 6 and Zigbee 3.0, fits standard wall boxes for home automation.
ESP32-C6512KB SRAM4MBWiFi WiFi 6Zigbee Zigbee 3.0
~$30View
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More to explore — popular traits shared by devices with Use Case: Home Automation.