SONOFF WiFi MINI-D Smart Switch with Matter Home Automation Dry Contact Output Supports AC or DC Input Compatible

How to set up Sonoff Mini D Dry Contact WiFi Switch and Relay for Garage Door Opener Control: 1. Find an unused or buy a 12v DC power supply with at least .5 MA output. Cut off the barrel end about 3 inches from end. Prepare contact wire ends and then plug the power supply into an outlet to find positive and negative leads using a multi meter. 2. Insert the positive lead into the Sonoff Mini D DC+ terminal and tighten the screw contact to secure the wire. Insert the negative lead into the Sonoff Mini D DC- terminal and tighten the screw contact to secure the wire. 3. Download the eWeLink app on iPhone and set up an eWeLink account with password. 4. Make sure the phone is using 2.4 Ghz WiFi band and that any vpn service is not engaged. 5. Plug in the Sonoff Mini D device indoors to set up. In the eWeLink App, touch the “+” sign to add and pair the Sonoff Mini D device. Once linked to the desired 2.4 Ghz network, follow other setup prompts and then give it a name such as Garage One, Garage Two, Garage Three, etc. 6. In the eWeLink app and make the following adjustments, being sure to “save” each adjustment as necessary: a. Assign Location to “Other” b. LAN Control ON c. eWeLink-Remote sub-devices no change to default d. Switch Mode should be “Edge Mode” and Detach Relay should be “Disable” e. Push notification to Off (or on if you want usage notifications) f. Offline Alert to Off (or on if you want alerts) g. Network Indicator to ON h. Power-on State to Off i. Inching Settings, Inching to .5 Sec and Status to Auto-off (“Save” these changes) j. Be sure to enable Alexa in the eWeLink app if Alexa voice control is desired. 7. On the ground, before plugging the Sonoff Mini D device into the same ceiling outlet as the garage door opener, prepare two 36 inch long wires and connect one to the Sonoff Mini D “NO” (Normally Open) terminal and tighten with the screw, and connect the other wire to the Sonoff Mini D “COM” (Common) terminal and tighten the screw. Then on a suitable ladder and connect and tighten the garage door opener terminal one screw to the Sonoff Mini D “COM” wire and the garage door opener terminal two screw to the Sonoff Mini D “NO” wire. (Note: these are the same two garage opener terminal screws that the two wires connected to the garage door opener wall switch are using.) Secure all extra wires with zip ties and try to keep the Sonoff Mini D device a couple of feet away from the garage door opener antenna wire to minimize signal interference when using the garage door opener conventionally. (Tip: it is easier to fit a single wire into the garage door opener terminals, so a wire nutted pigtail wire containing both the Sonoff Mini Dwire and the wire to the opener that allows for a single wire to the opener is best.) 8. If using Alexa, then go into the Alexa app on the phone. Find skills (under Alexa+ Store, then browse Skills and Games, then add and enable the eWeLink skill. Note: as initially set up, the Sonoff mini D will respond to “turn on” or “turn off” commands but not the more intuitive “open” or “close” commands, so if garage door opening and closing is desired using verbal “open” or “close” commands, a routine will need to be set up in the alexa app such that either phrase – “Open Garage One” or “Close Garage One” (note, garage door number must be written out in text within these routines, not as a numeral) to trigger the Sonoff Mini D device. Routine will be triggered by “voice” and will trigger the on setting on the desired garage door with either the “Open Garage One” or “Close Garage One” command. Read more

This little guy is super useful. I use it as part of an emagnet doorlock system to drive the push-to-exit button subcircuit. This gives me a software failsafe in case the button fails. If you power via 120VAC, it appears to regulate to a +12VDC internal rail. I have also driven the +12VDC input directly. Both work. Regarding the S1 - S2 dry contact inputs: S1 is internally connected to GND (DC-) and S2 is internally connected to +12VDC (DC+) through a pullup resistor (and probably a diode). This was a factor for me as I am also driving this with a relay on a Raspberry Pi. I am using a Pimoroni AutomationHAT for the relay, which is up to 24V tolerant. The output from the top (I am using COM and NO) assumes that COM is GND (DC-) and NO (or NC) will toggle between GND and DC+ when triggered. I had to interpose an optocoupler to interface this with my Raspberry Pi. Read more

very simple install very simple sync to app no problems installing , works perfectly for what I needed to close dry contacts just know you need a neutral wire 120v or 240 v with a neutral, they make a model that doesnt need a neutral for 240v i learned after contacting manufacture to see if i absolutely needed a neutral wire. with this model you do, so i connected to 120 to close contacts on a 240v circuit very small very easy to install and love the QR code printed on the device in case you loose the box or the papers that came with it. best easiest solution i have come across so far to close dry contacts Read more

Work perfect for me, can control the garage door. the option of dry relay is we need and power it with 5 volt !! I buy two more !!! also can use use to power on a desktop computer. All computer have 5v 1a always on; in the internal power supply, use it !! no more DIY MOD in old sonoff switch R2. Thanks Sonoff Read more

These work well, it was the only device I could find that works on 12VDC and provides a dry contact. Unfortunately I found it difficult to set up, and it didn't work fully locally. I did not use Matter, I used the more traditional WiFi config, but that required connection to the eWeLink cloud. It will also require the cloud to change wifi networks, change local config parameters, etc. I would prefer all that be settable locally, like some other manufacturers. However, the good news is that once configured, local control (not configuration) is possible. I can cut off the cloud connection via my router and it still works locally with Home Assistant, I just can't re-configure it without the cloud. Read more

Very good, reliable, small and low cost wifi control module that runs on dc voltage for specialized applications or can run on ac voltages. It has a form-c no/c/nc output. It also allows dry contact local input in addition to wifi app control from anywhere. Read more

Lo utilicé para abrir la puerta principal y cómo tengo cámaras IP, puedo ver quién está en la puerta y decidir si abrir o no incluso estando lejos de casa. Read more

The media could not be loaded. extremely compact little unit. Read more