This simple device allows you to control four loads from smart home systems, as well as using radio remotes and switches.
The board is added to the Tuya (Smartlife) application and will most likely work in most applications of Russian smart device manufacturers (Navigator, Hiper, EKF, Sibling, etc.). Apparently, it has not only Wi-Fi 2.4 Ghz, but also Bluetooth for quick pairing (when the device is in pairing mode, the application immediately "sees" it and offers to add it).
The control interface is simple - 4 on / off buttons.
Of course, there are all kinds of timers.
You can change the names of individual relays and the entire device. It is possible to configure the state in which the relays will be after turning on (off, on, the state that was before turning off).
There are four buttons on the board that control the relay.
In addition, the relay can be controlled using any standard Chinese remote control or 433 MHz switch. To learn the remote control button, you need to hold the button for turning on the corresponding relay for 3 seconds until the blue LED lights up, then press the button on the remote control - it will be memorized.
When the relay is turned on by the button on the board or from the remote control, the status of the button in the application changes - it can be seen that the relay is on or off.
The board has three modes of operation:
- normal switching on and off of the relay;
- switching (when any relay is turned on, the rest are turned off);
- turn on the relay for half a second.
The modes are changed by a separate button on the board; they cannot be changed in the application. The mode is remembered and after turning off does not change.
The board is powered by MicroUSB or any power source with a voltage of 7 to 32 volts. In standby mode, when all relays are off, it consumes 50-60 mA. When all four relays are on, the consumption rises to 250-270 mA.
The board contains Songle relays with contacts that can withstand current up to 10A at voltages up to 250V. The power tracks are soldered for amplification, cuts are made on the board between the contacts.
The cheapest board option without a case costs $13 with free shipping. There are also options in the case and with a remote control included.
In the accompanying manual, this device is called "TYWB 4CH 7V~32V RF", but this name is not indicated on the board or in the description on Aliexpress.
This device can have many applications (from controlling the light, to closing the contacts of non-standard remote controls to control non-standard devices from smart home systems).
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© 2022, Alexey Nadezhin
For twelve years I have been writing about technology, discounts, interesting places and events. Read my blog site ammo1.ru, in Learn, Zen, Mirtesen, Telegram.
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