Beiträge von Noitoen

I think I discovered what was wrong with the scene. The delay is programmed in minutes and although it allows fractions of a minute. This only works for a time greater than 1 minute. 1,5 will delay one minute and thirty seconds but 0,5 will trigger the action immediately and not wait 30 seconds.

Something strange happened today. Yesterday I tried all the possible scenarios to get this working without success. Today I tried again and, out of the blue, it works as I intended. I end up not knowing what happened.

Hi,

I've searched everywhere but didn't find information on the following issue:

I would like to use a Shelly Uni to monitor a sensor connected to one of the inputs which I separated from the relay control. The need is to send a notification to the phone only when the input is activated by the sensor for a programmable amount of time (between 2 and 5 minutes for example)

I've tried everything but I always get the notification no matter the time the sensor is activated. I can delay the sending of the notification but it will always be sent even if the input is no longer activated.

I would appreciate if someone could shed some light on the issue, thank you.

Hi.

I've been experimenting with a couple of Shelly Uni and a Plus Uni and found something strange that looked like cross talk between the system. My first Uni is on a breadboard with the inputs connected to the outputs crossed so that I can check the function on the app. The inputs are separated from the relays so the relays can only be activated by the app. I have a scene programmed so that I get a phone notification in case one of the inputs is maintained on for more than 10 seconds. This works as it should and I'm ready to implement the board into the intended application.

Yesterday I registered a Shelly Uni and a Plus Uni to a different room and this time "cross" connected the different Shelly's outputs with the other's inputs, again to see the operation on the app. Again, I separated the inputs from the relay outputs and on the Plus Uni I programmed a scene where if the input is activated for more than 5 seconds, it will activate the output for 1 seconds. To test this, I use Shelly Uni number 3 to change the inputs on the Plus Uni. There are no phone notification scenes on this pair of Shellies

Now the strange situation I discovered. While cycling through the actions to see the behavior of these 2 Shellies, on 2 separate occasions, I received a phone notification from the first Shelly in the post that is physically separated from these 2 and on a separate room in the App. and I did not change anything to receive the phone notification.

Is this "problem" normal?

Just ordered a PLUS Uni for my campervan lock project as it's capable to monitor up to 5 DS18B20 temperature sensors. This will be handy in monitoring my fridge and freezer. I wonder if the Bluetooth capability enables the access of the internal web control page? I guess I will have to try when it arrives.

Zitat

Sounds good

One reason for a possible failure of the shelly can be an empty battery. Or do you have an external connector to load the battery ?

I have a total 375ah deep cycle batteries and a 450w solar panel changing system so, it's difficult to run out. If this proved to be a problem, the analog input could be used, I suppose, to trigger a latch unlock sequence. The van will still be locked in the normal way by the central locking system with the key remote. The engine battery is a separate one

Zitat

Thank you for your reply. Ok, then now i dont know... is there still a problem, or am i wrong ?

I think I have the problem solved. I'm putting everything together and then I will test the different scenarios before I actually use the system as a redundant safety system in the campervan. The van has 4 doors, driver, passenger, rear and side door. For the driver and passenger, I use a mechanical system screwed on the inside that makes it impossible to open the doors from the outside and without the use of a special tool from the inside. I enable this system when I park the van. The back door is protected by the bike rack that is mounted on a hinge on the bumper much like a Jeep's swinging spare tyre. This leaves the side door which we use as the service door which is very easy to open if someone forces the side window. The idea is too install a custom motorised latch which prevents the door from sliding, controlled by the Shelly. If eventually something would go wrong with the Shelly I'm still able to get inside and disable the system but, for that I would have to crawl through the "garage" to the inside of the van by opening the back door.

Zitat

The accesspoint from the Shelly UNI is additional to Wifi. You dont have to choose. You can connect the UNI to the Wifi AND let the accesspoint active.

You connect your UNI to your Wifi from your mobile router as usual. Then you activate the accesspoint in the UNI. Everytime you cant reach the Wifi from your router, you connect your phone with the wifi from the UNI and can access the web interface from the UNI.

Maybe I didn't explain well but that is what I understood from post #4, thank you.

Zitat

The UNI is "allways" connect to the WIFI

And if your router have a working SIM your campervan WIFI can connect to the internet.

To config the UNI you need to access 192.168.33.1 and change the UNI IP adress to the one your WIFI in the campervan use.

When there is network signal, all is fine. Some routers (like the cable company one I have at home) if there is a problem with the Internet connection, will not allow your phone or tablet to access the Wifi network. I had this problem recently when there was a general cable company malfunction in my area. I do not know if the Shelly that I have in my test bench remained connected to the network but even if it did, since the phone or tablets did not connect to the wifi, I would not have access to the local web interface from Shelly.

I will have to test what happens in the event of no mobile internet signal how the router reacts otherwise the hotspot function in the Shelly (already suggested) should allow this connection. I suspect it will work fine. When I have a opportunity to test, I will report the results.

Zitat

You can activate the accesspoint of the Shelly UNI (with a set password) and connect to the accesspoint. Then you can reach the UNI at http://192.168.33.1. This is the default address from the accesspoint. There is no need to hide a button somewhere

Thanks for the information. I'm new to Shelly but like the more barebone ones. It would be interesting if we could get Shellies with Sim card capabilities. It would add easy mobile capabilities.

Zitat

Connent your phone to WIFI (LAN) and use the web brouser.

Connect to UNI with IP 191.168.xxx.xxx and unlock.

Thank you. I will try and see the results. Yesterday I had a problem with the cable service and the cable company's router would refuse to connect the phone to the network and I couldn't force it. I have a Shelly on the test bench but I didn't try to see if I could get into the web server. The Campervan's router is private and I suppose if I disconnect the card's data it will connect to the WiFi. The alternative would be to dedicate one of the digital inputs to the open command and hide the button somewhere under the chassis for emergency unlock.

I would like to use a Shelly Uni on my campervan to monitor 3 temperatures and control the lock and unlock an additional safety lock on the main door. The van has a 4G router with WiFi and if everything is ok with the Internet signal, It will work just fine.

The problem I see is when there is no network signal and therefore, no connection to the cloud. How can I unlock the system with the smartphone in this situation? Can the Shelly be accessed and controlled directly via Bluetooth? This would only be used with the Shelly in range, naturally.

Since this is a "Slow" reaction sensor, you could try a 10 uf capacitor between the adc input and ground. I have a 150KW air compressor who's control board didn't like the fact I installed a variable frequency converter to power the main motor. I tried everything including removing the power cables and shielded cables to the motor. The noise generated by the inverter made all temperature and pressure sensors fluctuate and the solution was a capacitor on each sensor input that solved the problem.

I've sorted my basic doubts and have it working. I thing the scene programming does't like hidden devices.

I don't know if I should start a new thread or not but I'll ask anyway. I have a question about the I2C temperature sensors. Are these Plug@Play? Will they automatically appear in the App if connected?

You still need to lower the 1000 ohm resistor to change the current to voltage correctly. at 500 ohm, when the sensor is at 20mA you get 10v at the ADC input and at 4 mA, 2v. At 1000 ohm, the sensor doesn't have enough power to operate and will drift. No capacitor should be needed.

Hi.

Yesterday I tried but I couldn't find the second channel so, today I performed a factory reset and removed the device from the app. After a rediscover, I can now see the two channels and control them as button separated from the output. I can switch on and off from the app and I can see the led turning green when I power the input. If it keeps going this way I will be satisfied but I would like a little bit more if possible.

Can I get a notification when a button is pressed (for more than a preset time would be great) If this happens it means that I need to take some action by remotely activating one of the outputs. Could this activation be momentary?

I hope you can steer me in the right direction, thank you.

Zitat

Welcome to the forum!

Look in the App for ‘all rooms’ -> ‘hidden devices’. There you should find the second channel!

Hi.

Thanks for the reply. I've tried it but it doesn't appear. I can only toggle one output via the app but I can't even monitor the input. The only way I can see the state of the input is when I associate the input with the relay and the the little bar led on the app button will turn green and stay even if I disconnect the relay via the app

Hi all. I need to automate a simple situation where I want to be able to see or receive the status of 2 micro switches and be able to remotely momentarily activate any of the 2 outputs and I thought the Shelly Uni would be up to the task.

I've successfully connected the Shelly to the network and toggle both channels locally on the device but, remotely on the App, only one channel appears. I can separate one input from the output but not the other one. When I separate this input, I'm no longer able to se the state of this input. The other input and output simply doesn't appear.

I wonder what I'm doing wrong. I've mounted everything on a little breadboard to check the results but until now, I'm not very happy.