WiFi 4 (2.4 GHz)

2 devices
Related:802.11 b/g/n (Optional)802.11ah (WiFi HaLow)WiFi 4 (802.11 b/g/n)WiFi 4 (802.11n)WiFi 4 + WiFi HaLow (900MHz)WiFi 6 (802.11ax)WiFi 6 (802.11ax) Dual-Band 2.4/5GHzWiFi HaLow (sub-1GHz) + WiFi 6

Raspberry Pi Pico W

Dev Board
Raspberry Pi Pico W

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
IoTHome AutomationWireless Sensor NetworksPrototyping
~$6View

LOLIN D1 Mini V3

Dev Board
LOLIN D1 Mini V3

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)
IoTHome AutomationWireless Sensor NetworksPrototyping
~$4View

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Home AutomationPrototypingIoTWireless Sensor NetworksDevelopment Board