Accéder au contenu principal

SONOFF RM433 remote control with 8 buttons

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:


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



Base

Back


We can see that the remote is powered by a 12V 27A battery, 12V 23A will not fit into the remote for info.

Remote

Disassembly

Disassembly2

This little remote control is interesting, I retain the following advantages:
  • 8 buttons
  • possibility to attach it to a wall thanks to a dedicated base
  • nice quality
  • seems robust
I recommend it.

Commentaires

Posts les plus consultés de ce blog

433toMQTTto433 - Bidirectional ESP8266 NodeMCU gateway between RF 433Mhz signal and MQTT

The goal  is to act as a gateway between 433Mhz sensors and a MQTT broker or between the MQTT broker and 433Mhz actuators, It enables to:
receive MQTT data from a topic and send RF 433Mhz signal corresponding to the received MQTT data publish MQTT data to a different topic related to received 433Mhz signal 
It can be an interesting part in an home automation system so as to interface sensors and actuators (wall sockets) with software like openhab.

List of compatible sensors here

The interest of putting this gateway to an ESP8266 and not on a raspberry pi is to be able to manage security actions at gateway level (power on a siren, cut power to certain devices) following RF data received by sensors without being dependent to the PI for security related actions.

[EDIT] all infos are now centralized into the github repository take a look at it you will find up to date info about OpenMQTTGateway

You need:

Software:

MosquittoArduino IDE latest version (tested ok with 1.6.10)esp8266 board added to t…

Infrared IR, 433mhz and MQTT on ESP8266 bidirectional gateway OpenMQTTGateway

Following discussions on the home assistant forum people gave me the idea to add Infrared communication to the 433mhz gateway. 

The goal is to act as a gateway between 433Mhz sensors, infrared remote controls and a MQTT broker or between the MQTT broker and 433Mhz actuators, infrared devices, It enables to:
receive MQTT data from a topic and send RF 433Mhz signal corresponding to the received MQTT data publish MQTT data to a different topic related to received 433Mhz signal receive MQTT data from a topic and send infrared signal corresponding to the received MQTT data publish MQTT data to a different topic related to received infrared signal 
It can be an interesting part in an home automation system so as to interface sensors and actuators (wall sockets), your tv, home cinema, hifi ... with software like openhab or home assistant.

List of compatible RF sensors here

[EDIT] all infos are now centralized into the github repository take a look at it you will find up to date info about OpenMQT…

Adding infrared emitter to SONOFF RF BRIDGE

With the add of  SONOFF RF Bridge  to the OpenMQTTGateway compatibility list we were able to send and receive 433mhz by MQTT. 
The interesting thing with OpenMQTTGateway is the ability to have on one board several gateways (RF, IR, BLE and more to come ;-). 

The last versions of SONOFF RF BRIDGE as two IO free pins, why not using these pins to add a new gateway to this little cheap device and control more devices.



If we follow the interest of the different gateways you are more interested on RF and after comes IR infrared.

My choice came in this case to add an infrared emitter to the RF Bridge, with this gateway we are adding the capacity of controlling TV, DVD, hifi...

On the hardware side, I followed the same schematic for IR setup with ESP8266 with just a little add a protection resistor of 1K for the IR led.
The other resistor is connected between the transistor base and IO5 of the RF Bridge instead of D0.
The IR led is powered by the 3,3V of the Sonoff RF Bridge.

The schema:


Here is how i…