Sonoff Mini R2 / R4 Dual-Control Smart Home Wifi Two-Way Switch, DIY Switch Wireless Remote Control Work with Alexa Google Home
Smart Electronics
“The Sonoff MINIR4 features a compact form factor for tight wall boxes and an ESP32 chip for reliable, dual-core performance. It is a highly capable, DIY-friendly smart switch that supports advanced configurations like 'Detach Relay' mode, though it requires technical proficiency for custom firmware installation.”
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Compact 40x30mm footprint allows for installation in small, standard European wall-mounted boxes.
devices.esphome.ioSwitch is really small, approx 40x30mm, easily fits behind wall switch.
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ESP32 dual-core chip provides stable, long-lasting operation and reliable smart home connectivity.
sonoff.techboasting exceptional safety and reliability. Withits speedy dual-core performance and ample memory
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Detach Relay mode separates physical switch state from relay state for smart light control.
sonoff.techoperating the external switch button won't affect relay state.
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Requires advanced soldering skills to access pins for custom firmware installation.
devices.esphome.ioProgramming Firmware programming need disassembly (easy) and moderate soldering skills
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Internal pads are covered with a protective coating that must be carefully scratched off.
devices.esphome.iopad is covered with some protecting coating - needs to be scratched, very subtly