Zigbee relay and contact sensor in one

Devices & Integrations
1

I am looking for a simple Zigbee 3.0 relay (switched NO/NC contacts = output) and digital contact sensor (sense if a circuit is open or closed, i.e., the opposite of a relay = input) all-in-one, in one device. Aka, at least one output (one relay) and one input.

Any suggestions?

I got this MHCOZY device https://a.co/d/htsD7Iv that has four relay outputs, but has no inputs.

The purpose is to integrate with Truth Sentry WLS II motorization systems. A manual is here: https://www.truth.com/main/pdfs/WLSEnglish.pdf

Basically it automates opening and closing casement windows and skylights. It has two inputs (controllable by dry contact relays) to open and close the window, and one output (a relay itself) to indicate whether or not the window is in a fully closed state. So I would like a Zigbee 3.0 device that matches all of the inputs and outputs.

Ideally the device should be mains powered or DC low voltage powered, rather than battery powered, so it can fit in a wall box with the rest of the wiring.

2

Frient I/O module has both inputs and outputs

1 Like
3

Shelly Uni has all requirements but it is wifi.

1 Like
4

How well does Shelly Plus Uni integrate with SmartThings? Is there a native driver/edge driver?

Also how well does the Gen1 Shelly Uni integrate with SmartThings?

I looked at the specs and I think I may need multiple ones, but only need the Gen1 Shelly Uni digital input/output features.

5

@TAustin has made driver for Shelly Devices.

Problems with the latest firmware have also been reported.

Maybe it’s good to wait a while.

It’s also possible to use Cloud to Cloud connection but I don’t know if Uni is supported.
Shelly - SmartThings connection

2 Likes
6

Here is some research from the past couple of days. As pointed out, I am looking for a ratio of 2 outputs (2 dry contact relays) to 1 digital input (1 digital sensor). In my configuration there will be one wall box (area) controlling two motors, which means 4 outputs and 2 inputs. Prices researched are in USD shipping to the United States.

Shelly Uni (Wi-Fi): 2 outputs, 2 inputs. $12.99 Walmart. Need 4x Shelly Unis = $51.96 plus input equipment (resistors etc.) plus 2x Mean Well RS-15-24 $7.95 (Amazon.com) = ~$73

frient IOModule (Zigbee): 2 outputs, 2 inputs. €57.01 per item at Amazon.de. Shipping is around €17.39 for one, €17.42 for two, €19.69 for four from Amazon.de. Need 4x plus 2x Mean Well RS-15-24 $7.95 (Amazon.com) = €247.73 (~$276.13) + $15.90 = ~$295.

I looked for the “Develco IOModule” but was not able to find it.

The “MHCOZY” products are actually in some generic Zigbee relay series called the ZG-001 through ZG-005. Here is a comprehensive review:

MHCOZY 4-channel device aka ZG-003-RF (no plastic case): has DC 5V USB and DC 7V-32V power inputs.

MHCOZY 4-channel ZG-005-RF Amazon.com $22.90: has AC power input. Does not appear to be UL or UR listed though.

Two ZG-005-RF = ~$50, no AC/DC power supply required. No input sensors.

Two ZG-003-RF = ~$50, plus 2x Mean Well RS-15-24 $7.95 (Amazon.com) = ~$68. No input sensors.

I am looking for Zigbee input sensors that take hardwired power, other than the frient IOModule, but I am coming up a little bit short. However a bunch of Googling came up with this AliExpress listing 3256805946030308. It says “7-27V AC85-250V Tuya 8 Way WiFi/Zigbee Remote Switch Signal Control High-level Signal Input Mobile Phone Display Circuit Status” “Bundle: DC7-27V zigbee” $12.91; “Bundle: AC85-250V zigbee” $14.52.

My understanding is that this module supports 8 inputs and 8 outputs. However, the outputs are not dry contact relays–instead the outputs are switched to 5V (AC version) or whatever your DC input voltage is (DC version). You can buy a 6-position dry contact relay board for $7.79 that runs at 5V or 12V.

If this is correct, then I only need two of these (AC version) plus two boards, and can skip the MHCOZY ZG-003/ZG-005 devices as well as the power supplies. Total would be $14.52 x2 + $7.79 x2 = $44.62 (free shipping).

This is whether it works at all. Has anyone else ever seen this product? Do you think the AC version is safe or would it be better to go with the DC version and use a UL/UR listed Mean Well power supply?

2 Likes
7

The AliExpress listing 3256805946030308 might be vaporware. I ordered but the shipment window expired without the item being shipped.

There appear to be two sellers, “LYPZUX” and “LLXLJY”, on AliExpress selling more-or-less the same things.

I found another product that is 4-output (relays) and 4-input (digital sensors) in DC and AC versions and Zigbee and Wi-Fi versions. They are sold by the same seller(s) however so even though I placed an order today, I am not confident that they will actually ship.

Can anyone determine the generic OEM from these pictures and see if there are other suppliers that sell these parts?

8

I got that product, “Tuya 4 Channel WiFi/Zigbee Remote Control Smart Switch DC7-27V AC85-250V 16A Magnetic Latching Relay Support Temperature Input”, but I cannot get it to pair with Samsung SmartThings.

I also got this Zigbee 4-channel relay from Tindie: https://www.tindie.com/products/a_lab_technology/zigbee-4-channel-relay/

But it also does not recognize or pair in the SmartThings app.

It is worth pointing out that neither product has instructions so I have to take a guess about what it takes to get these devices into pairing mode, maybe they don’t boot up in pairing mode.

Any ideas?

9

Many Tuya devices require you to hold down the pairing button for at least 10 seconds to get into the pairing mode.

Your Tindle button says: Press and hold button 1 for more then 20 seconds

10

Yep I got the Tindie button added to SmartThings.

There is only one button on the Tuya 4 Channel Smart Switch Magnetic Latching Relay, the “SET” button. I already tried doing that (holding down 10-20 seconds) but it didn’t get recognized/added.

11

Try pushing the Set Button quickly, multiple times quickly in addition to holding for 10 plus sec.

12

Which one–“push the Set button quickly, multiple times quickly”? or push and hold for 10 plus seconds? or in which order?

I wish there was some way to get an instruction manual…

13

Try both ways. When I can’t get a device into pairing I just start pushing and hold buttons in various sequences.

Try powering the device off for 30 sec. between pairing attempts.

Many Tuya’s have 2 pairing modes. Fast blinking and slow blinking. You usually get fast blinking 1st and you just let the App add the device. The 2nd mode, slow blinking you get by put the device in pairing mode a 2nd time while it was blinking fast. In the slow blink mode you connect your phone to a temporary WiFi hotspot that the device is providing.

Older Tuya devices can be a pain to pair because the only use WiFi for pairing, newer Tuya devices usually use a temporary Bluetooth signal for pairing then switch to WiFi.

14

Hmmm I removed one of the Tindie devices and tried to add it again to update the driver. Now it’s not pairing again.

I also used a brand new Tindie board and put it in pairing mode, but again, it’s not pairing. I got the lights to blink rapidly.

I am using Add Device > Scan Nearby, and also Add Device > partner devices > can’t find your device? > add without QR Code.

Attached is a screenshot of the app. It looks the same: “Searching with Mobile, Aeotec Hub v3”

IMG_7013
IMG_70131179Ă—2556 77.6 KB

Seeing as how I got it to work at least once before I am pretty sure this is a Samsung SmartThings pairing problem, not a problem with the boards being in pairing mode.

15

It seems that the Tindie Zigbee boards (actually called “Alab”) did in fact attach to SmartThings behind the scenes, but the UI was stuck on “Scan nearby”. I don’t know why the UI was messed up like that.

16

Hello there! You are pressing the wrong button. You need to press the executing button. Use the driver for MHCOZY ZG-005-RF “Zigbee Multi Switch and Child Mc” from the author Mariano_Colmenarejo

I used it for ventilation in the mode “momentary mode”, by emulating quick pressing of different ventilator buttons.

Everything is working fine

17

@Valery, is that advice for the MHCOZY ZG-005-RF device, or for which device specifically?

I have been using two of the ALab Technology 4-channel Zigbee device from Tindie for the last several months. The one on the third floor seems to be working fine. The one on the second floor drops off the network after awhile (after a few days) and there seems to be no way to get it back on the SmartThings network, except to power cycle it. It is hard to tell if it is a connectivity problem, a hardware problem, or something else.

18

Hello there! To be honest, I couldn’t find any names on my device.

IMG_3330
IMG_33303024Ă—4032 2.69 MB

IMG_3331
IMG_33314032Ă—3024 2.43 MB

IMG_3333
IMG_33334032Ă—3024 2.34 MB

19

I think the name of the model and the manufacturer don’t matter. All of them are made in the factory: "Uncle Liao”

IMG_3333
IMG_33332076Ă—1594 766 KB

Therefore, the buttons have the same purpose.