Home Automation - Smartkit

This is exactly how I connected my Sonoff SV (with the resistors removed) to my Centurion D5 gate motor:

View attachment 543123

The trick is: the "-" terminals for the relay ("input" and "output") doesn't mean anything -- they're literally just connected to one another. It is the "+" terminals which is actually switched on/off by the relay, and thus you can safely connect those to COM and TRG on the gate board.

Furthermore, the 12v power supply in for my gate motor happily powers the original receiver and the SonoffSV.

You would have to physically isolate the relay from the 220v on the Sonoff Basic to be able to use it for a gate setup. Can probably try and strip the track on the board but I'd rather just use the SV since it is smaller and there should typically be a 12v supply (and it can use 5v and up).

I've managed to hook another one up to my Gemini motor too (well, originally I did, but then I discovered no wifi coverage there, so I moved it to a garage and rather broke open an extra remote and hooked that to the SV -- the SV is powered from an old USB power supply).

On the money ;)
 
This is exactly how I connected my Sonoff SV (with the resistors removed) to my Centurion D5 gate motor:

View attachment 543123

The trick is: the "-" terminals for the relay ("input" and "output") doesn't mean anything -- they're literally just connected to one another. It is the "+" terminals which is actually switched on/off by the relay, and thus you can safely connect those to COM and TRG on the gate board.

Furthermore, the 12v power supply in for my gate motor happily powers the original receiver and the SonoffSV.

You would have to physically isolate the relay from the 220v on the Sonoff Basic to be able to use it for a gate setup. Can probably try and strip the track on the board but I'd rather just use the SV since it is smaller and there should typically be a 12v supply (and it can use 5v and up).

I've managed to hook another one up to my Gemini motor too (well, originally I did, but then I discovered no wifi coverage there, so I moved it to a garage and rather broke open an extra remote and hooked that to the SV -- the SV is powered from an old USB power supply).

how reliable is it?

any false openings / triggers?
 
how reliable is it?

any false openings / triggers?

None yet! I was concerned that it would trigger at boot, but Tasmota seems good.

One thing to check is the security -- the original video I watched suggested setting wificonfig to 2 to force the Sonoff to go into AP mode if it can't connect to wifi. Basically, start up an unrestricted Wifi access point with a DHCP server. This is a lot easier to use to setup an initial Sonoff, but it is a major security loophope: if your wifi dies, anybody can open your gate!

I currently use wificonfig 5 (meaning, if the wifi disappears, retry but don't reboot and don't write anything to flash).

I also have a Sonoff Basic connected to my gate light, and on this one I have a reedswitch connected to the IO pin. This notifies me immediately if my gate is open. It has been a lifesaver a couple of times -- I tend to press the remote buttons when the remote is in my backpocket.
 
None yet! I was concerned that it would trigger at boot, but Tasmota seems good.

One thing to check is the security -- the original video I watched suggested setting wificonfig to 2 to force the Sonoff to go into AP mode if it can't connect to wifi. Basically, start up an unrestricted Wifi access point with a DHCP server. This is a lot easier to use to setup an initial Sonoff, but it is a major security loophope: if your wifi dies, anybody can open your gate!

I currently use wificonfig 5 (meaning, if the wifi disappears, retry but don't reboot and don't write anything to flash).

I also have a Sonoff Basic connected to my gate light, and on this one I have a reedswitch connected to the IO pin. This notifies me immediately if my gate is open. It has been a lifesaver a couple of times -- I tend to press the remote buttons when the remote is in my backpocket.
Thanks for info
 
Anyone know where to get the FTDI USB to TTL Serial Adapter?

Smartkit and Communica sold out. Other places really expensive (raru in R300 range).
 
Please don't finish their stock :)

You can always buy from me at R500 a pop ;)

Hehehe, I don't really make money on the FTDI to TTL converters - it's just convenient for guys to buy with the Sonoff stuff.

EDIT: oh dear, looks like somebody bought a lot of them!
 
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