The popular smart switch Sonoff Basic from ITEAD has recently become available in a new version. The Sonoff Basic R3 is the successor of the trusted Sonoff Basic
With an ESP-WROOM-02 and an MQ-3 alcohol sensor you can easily make a portable alcohol detector. It will be a simpler implementation of the earlier project “Arduino breathalyzer:
Tasmota is an alternative open-source firmware for devices that are based on the ESP8266 WiFi chipset. The firmware provides the devices with timers, a web interface, Over The
The Sonoff S20 WiFi Smart Socket is a switch that you can control with your smartphone. This can be done locally via your own wireless network and worldwide
One of the more obvious applications of a board like the ESP-Wroom-02 is using it as “WiFi jammer”. In the previous post I already wrote about the board
