S-MATE 2 is a sensor, or more precisely an RF (e-WeLimk Remote) NO 3CH Sensor, through the contact of which the battery current flows, i.e. approx 3V. DIP switch Has two operating modes depending on the switch.
My suggestion is that if this cannot be implemented on this board, then make S-MATE 3 as a separate device or add S-MATE GEN2 a switch from sensor mode to performer mode. By S-MATE 3 I meant precisely the actuator for monitoring low-current circuits, if this could be implemented in software and firmware for S-MATE 2, this would of course be wonderful, but judging by the board, this is impossible.
I used the tester on the S-MATE 2 contacts and that is why I concluded that this is an NO sensor, just a little smarter than a regular NO.
In general, and I think it would be useful not only for me to have such a device, a conditionally digital jumper on a battery, with which you can physically press the reset button of your server, or turn it on, open the gate, etc. and it would be on a battery and would have several contacts 3-6 because there can be a lot of tasks for it, and the flow of current and voltage is minimal.
Honestly, I don’t grasp what the intention of your proposal is. What specifically do you want to achieve? You’ve written a lot and it’s not easy to figure it out.
OK I’ll explain my task. I have a motor for controlling the gate, it has a set of contacts, potentially it can be located far enough for a Wi-Fi and Zigbee network, RF can easily reach it, breaking through all possible obstacles, I’m not talking about security and so on, all the disadvantages of RF are clear. My second task, for example, I have a computer that I want to reboot remotely when it freezes, literally close the Reset jumper, or Turn it on if it is turned off, but at least connected to an outlet or a three-phase motor started by a contactor. All these problems can be solved, of course, with the help of Arduino and the same RF Bridge, but if I already have the Sonoff ecosystem and any devices where I can connect the eWeLink-Remote Sub-device, then why not have a multi-contact low-current network controller, or a relay like Call it what you want, a battery-powered device so you don’t have to drag wires into it.
The example with the motor is extremely indicative: It has a NO contact for Partial Opening, NO Contact for Full Opening, NC Contact for Locking, NC for Emergency Stop. I don’t need a sensor, but a relay that has the ability to control these contacts, and there is no need for a large current and high voltage to flow through it, due to this I can place a large battery in a small case. Conventionally, I need a multi-contact DC relay. S-MATE 2 is a sensor, why not make a counterpart for DC-low voltage.
Addition, I generally feel like a DC line or support would be interesting to the community. It’s just that what I described would be an extremely universal device for specifically monitoring low-current circuits.
Is it? Or you are talking about something different.
BTW: eWeLink Remote is not RF based. It’s a propriety protocol, based on BLE. It’s one direction only, and it means that you cannot control sub devices. eWeLink Remote is capable of one direction only communication. Therefore there’s no chance of sending commands to S-Mate.
I believe that you may want to see this offer or another one from Eachen.
Sorry, I didn’t know that the protocol works exclusively in one direction, i.e. receives a signal without feedback. It is clear that, probably, reworking the protocol is too much, but rather closer to the impossible.
I’m just saying that this is a description of a device that, in principle, can use: 1. A battery, and as a result, any energy-efficient technology will do, and within Sonoff this is Zigbee or RF. 2. Have many contacts capable of closing low-current circuits, I’m talking about several tens of milliamps. Here you probably need to understand the component base and the average market demand, perhaps 100+ milliamps. 3. Act as a sensor or actuator. 4. All this can be packed into an extremely compact body, not much larger or comparable to the S-MATE2. That’s what I’m talking about, and of course it should look like Sonoff in a beautiful case with convenient contacts and so on.
thank you, I definitely found a solution using RF, and other options, there are quite a lot of them. but all of them are not as universal as I described above. and not so beautiful, compact and multifunctional. This is the suggestions section, I suggested.
You have the RE5V1C smart relay that you can use to turn a PC on / off it requieres 5V DC, but the good news is you have constant 5V DC on the STAND BY ATX power supply pin that lets you power the smart rele regardless if the PC is on or off…