It’s a nice little remote control with 8 buttons, it is powered with a 12V 27 battery. You can also buy a base, the remote fits into it by a magnet. The protocol used is compatible with OpenMQTTGateway modules below: ZgatewayRF (ESP32 or ESP8266 with an RF receiver) ZgatewaySRFB (Sonoff RF Bridge) Here is the official link: SONOFF Official SONOFF RM433 - RF receiver for Remote Control | SONOFF Official SONOFF RM433 is a 433MHz transmitter. With it, you can remotely control the devices and appliances that can receive 433MHz RF Now if we take a look to the power consumption of this sensor we can see that: When sending signal 9mA during around 0.5s Sleep current less than 1uA continuously Duration estimation See relative comparison into the list of compatible devices It should last more than 1 year with 20 actions per day. Some pictures: Power consumption when no action OpenMQTTGateway_devices_SONOFF-RM433_sensor_sleep_curre...
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