Expandable Zigbee Repeater Solution (With Temperature, Humidity, Pressure and Light sensors)

The short answer is no. The sensor Zigbee stack have that information. However, there is no upper level cluster to deliver the information.

When you say “events”, do you mean event in the scope of DTH? In DTH, a device typically parse incoming message from sensor. It, then, typically package it into an event or events. If this is the case, you can launch your log. You should verify whether the sensor do sent zigbee messages. If they do, the issue is somewhere else.

My ST hub is not receiving some open/close messages from sensors.
I also noticed one of these repeaters that I put on the extreme other side of my house from the hub shows 10 children (over half of my zigbee devices).
Probably not related to the issues (I plan to check and replace batteries this week to rule out the obvious), bit it is curious.

Do you still have some of extended range Zigbee Radio with PCB antenna?
I would need 4x.

Hi Mike,

I will let you know next week. I am in the process of testing having the module assembled by a manufacturer. If the yield is good, I will let you know.


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Yes, count me in on the testing.
Got a SmartThings at home and looking for a repeater solution for sometimes. Also working on RaspberryPi on Watson IoT. Was thinking on looking into xbee or something similar as the repeater solution and also potential integration with my Raspberry Pi.
Only catch is I am in Melbourne Australia.

I just want to update my progress with this project. Having shared a few modules with community members here I started to get feedbacks. The most intriguing feedback is about being able to extend or expand the sensor.

In the past few weeks, I went back to drawing board and look for solution to accommodate the above. Here is what I come up with.

On the hardware side, the new board will expose analog, digital input and output pin. Access to 5 volt and 3.3 volt are also available.

On the firmware side, those pins are abstract out as Zigbee Basic Analog Input, Binary Input/ Output cluster. These clusters are accessible through Hubitat DH.

In layman terms, we will be able to access information from the sensors connected to the pin without needing to understand the lower level complexity of Zigbee protocol and Firmware development. Our DH will be getting one or zero from your digital sensor. Or, DH will be able to read your sensor Analog output in volt. Your DH can drive a thing using its digital output pin.

I have an example in the following video where I connect a moisture sensor, flame sensor and a relay. (DTH for Smartthings will be available as well. I am working on it)

I am very excited about this feature. I will have a few to share once I sort out and test them on my end. I will also share my experience connecting them with other sensors. I have motion sensor, Gas leak sensor, sound sensor in the queue.

Finally, this is still a Temperature, Humidity, Pressure and Light Sensor. It is still a Zigbee repeater to help with your Zigbee network. It is also help with your Xiaomi devices.


If you add

vid: “generic-motion-6”

to the Definition section at the top of the device handler the sensor will then be fully functional in the new Smartthings App. Not sure if anyone is concerned about it, but this was found in another thread.

Yea… that was completely a typo. To many things happening today.

Hi guys, I am a bit lost. Do you meant to add

name: “Environment Sensor”, namespace: “iharyadi”, author: “iharyadi”, ocfDeviceType: “oic.r.temperature”, runLocally: false, minHubCoreVersion: ‘000.019.00012’, executeCommandsLocally: true, vid: “generic-motion-6”

I’ll do that on the next update if I understand this correctly.

Yes exactly.

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Thanks. I am in the process of supporting the “new” expandable pin to add new sensors. I will definitely add the string along with this new code.

This show up in my mailbox. This is the first module that I do not assembled myself. It is one of 10 that a contract manufacture assembled. It is hard to see in the picture. However, side by side, their soldering is much more superior than what I can do.

I am making progress with new DTH to support expandable sensor. I will update my progress later on this topic today.


Here is the new DTH look like in ST.


Here is a video of the module in action.


Hi Everyone,

The latest batch of Zigbee Radio has arrived.

I have partially assembled them (The top three rows). Some of them are still missing Temp, Humidity, Pressure and Light sensor. They have new board with pad exposed for hobbyist to connect additional sensors. The zigbee radio has 2 flavors (extended and non extended range). There is no external antenna needed. The antenna is on the PCB.

If you are interested on these modules, I would like to get donations to recover the cost of the modules. They are not commercially available. The donation is used to cover the cost of the hardware and other material to develop the sensor modules. In the past few months, we have gone from a simple Zigbee Repeater to Environment Sensor. Today, you can expand the sensor on the modules. There is a change for the donations cost. I would be offering two flavor.

  • With Temp, Humidity, Pressure and Light sensor. Donation $28. You will get the said sensor out of the box. In the future, if you need to add your own sensor, the pads are exposed for connection.
  • Without Temp, Humidity, Pressure and Light sensor. Donation $17.

They are Zigbee Repeater regardless which flavor you choose. Both flavors will come with firmware to support the expandable sensor IO. They are supported through Zigbee Binary Input/Output and Analog Cluster. I will provide example DTH for them. You do not have to deal with the complexity of writing low level firmware.

The ship date ETA for the module with full sensor(aka) is 9/20/2018. I will take your request. I will overnight the sensor from arrow electronic and install them.

The module without sensors will be shipped as soon as I soldered the USB connector and test them.

My recommendation is to get the full sensor version. My intention and How I use them is for room monitoring. For me, those sensors are the minimum information that I must have. On the other hand, I also want to be realistic. The sensors on the board are expensive ($6 to $7 a pop). I also get feedback from member who already had my module that some of the sensors are not important for them. Therefore, I want to try to make it as optional item in the light of it is now possible to connect your own sensors.

The bottom rows are fully made modules with all the sensor with the old board. They are good for someone who do not want to tinker around with sensor expansion. I have 4 of them left from a batch that is made by manufacture. I ran a test manufacturing run of 10 modules.

Let me know if you are interested. Like on the past, I typically make a list of interest. Once I have enough number in the list, I will take care of them in a batch.


I would be interested in a pair of sensors or more. I’d like to add a remote temperature probe so that I can keep track of water temperature. How do you measure pressure? Can I add a pressure transducer or in what way can pressure be measured? I want to ensure that an air compressor I have has at least 50psi of pressure.

There is one analog input. You can get a thermocoupler for water temperature. I think this is the safest way for water temperature measurement. You can get module like

The environment sensor has pad to provide 3.3 and 5 V supply. However, all MCU pads (digital input,output and analog input) are 3.3v only. CC2530 will blew up with 5v input. I will give out the pin description in the short future. This board does not have a clear marking of the pad. In the future, I would make board with pads marked.

The pressure sensor are typically again an analog input. Something like this.

You supply power 0 to ~5v. They will give you a wire to put into your analog input. Then, you translate the voltage to pressure based on the vendor spec. As an example below.

Output: 0.5V~4.5V linear voltage output. 0 psi outputs 0.5V, 50 psi outputs 2.5V, 100 psi outputs 4.5V.

With this sensor, you may need a voltage divider. That 4.5v will kill the MCU. Voltage divider can be as simple as two resistor. Take a look at


They can be a bit more complex if the pressure sensor need to be isolated. Lets not get there if not needed. The solution is not that hard either. You just need a voltage follower.


BTW, I am sorry to miss about a point. There is only 1 analog input per module. You may need a couple of them for the two things that you are looking at. Or, do you actually hope to connect two analog sensors?

There is a Digital Output that I suppose you can use to multiplex the AO to two sensors using relay. It can be done I would not recommend it as the the device handler is bit complex. You just have to switch the relay on or of depending the sensor you want to read.

The other option is to use comparator on the pressure sensor to convert that 50 psi threshold to digital on or off. You can then input that into the digital input which is still free. You can google YL-38. It commonly used as moisture sensor. The schematic look like it is a comparator that you can use with isolation going into comparator chip directly.

The availability for older type board( not expandable) is now 2. (in the pictures, they are the bottom row). Thanks everyone who support this project.

For new style of board, I have still a few available left. The BME280 and Light sensor is on the way. I will try to get them solder out this weekend.

I’d be interested in one of the fully loaded ($28) repeaters if they are still available. I have more than 32 zigbee devices in SmartThings and at least a dozen Xiaomi Aquara sensors that keep disconnecting. None of the repeaters I’ve tried yet have worked reliably and my Xbee stuff hasn’t came in yet to try that. I’d love to give this a try.

Fully assembled board just come out of the oven with all sensors fully installed. I am testing them as we speak. They should be ready to ship in 2 to 3 days. Some of them has been spoken for. If you are interested, PM me, I will let you know what I have left.