Sonoff BasicR2

Smart Switch
Sonoff BasicR2

WiFi smart switch based on ESP8285, widely used in the open-source home automation community. Easily flashable with Tasmota or ESPHome for local-only smart home control without cloud dependency.

ESP828580KB1MBWiFi 802.11 b/g/n

HeishaMon Communication PCB

Communication Pcb
HeishaMon Communication PCB

Open-source ESP-based communication PCB for local monitoring and control of Panasonic Aquarea heat pumps via MQTT and HTTP, with Home Assistant integration and S0 energy metering support.

ESP8266EX80KB4MBWiFi 802.11 b/g/nEthernet 10/100 Mbps (W5500, large board only)
~$20View

BigTreeTech ESP8266 WiFi Module

Wireless Module
BigTreeTech ESP8266 WiFi Module

ESP8266-based WiFi transceiver expansion module for BTT 3D printer control boards. Available in ESP12S and ESP-07 variants, enabling wireless connectivity and remote control via serial UART.

ESP826680KB4MBWiFi 802.11 b/g/n 2.4GHz
~$10View

BigTreeTech BTT RRF WiFi V1.0 Module

Wireless Module
BigTreeTech BTT RRF WiFi V1.0 Module

ESP8266-based WiFi expansion module for RepRapFirmware (Duet-style) boards. Adds wireless connectivity to BTT SKR V1.3, SKR V1.4 Turbo, and compatible boards running RRF or Marlin firmware.

ESP8266 ESP-07S80KB4MBWiFi 802.11 b/g/n 2.4GHz
~$15View

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