Den Automation and the Cloud

A few months ago, Den Automation Ltd appeared to drop off the face of the earth. My hub disconnected from the internet and the Den app would only work whilst I was at home. I should point out that I invested in Den via Seedrs. Continued Operation is possible I took time to try and … Continue reading Den Automation and the Cloud

Xiamo Aqara Wall Switch

With news that Den Automation were likely going into administration (due to massive debt) and the discontinuation of their Cloud services, my dreams of adding more Den switches were well and truly dashed! I'd added a few Aqara temp sensors and contact sensors to my Home Automation setup and I discovered that they had a … Continue reading Xiamo Aqara Wall Switch

pkpassvalidator.com update

I have just published a small update to https://pkpassvalidator.com/ The signature now undergoes additional checks, to ensure that the WWDR certificate is used. This is one of the most problematic things for people using my https://github.com/tomasmcguinness/dotnet-passbook library. Hopefully this small change will help.

Den Automation – API

With the very sad news that Den Automation is having financial troubles, I decided it was time to revisit my investigation into the protocol that Den uses. I had read on their website that they used both a cloud based and local network approach. In fact, this was one of the things that appealed to … Continue reading Den Automation – API

TS MK II – Mesh Network Pt.2

As part of my Temperature Sensor upgrade, I've started looking into Mesh Networking support. Documenting my progress Rather than try and put a post together at the end, I'm going to try and document my progress as I go, with additions to this post each time I do something significant. The beginning I recommend you … Continue reading TS MK II – Mesh Network Pt.2

TS Mk II – Mesh Network Pt.1

As part of my Temperature Sensor upgrade, I've started looking into Mesh Networking support. I was aware that the Expressif ESP32 supports the new Bluetooth LE Mesh protocol, and as Bluetooth Low Energy would help stretch battery life, it seemed like the natural place to start my investigations. I was initially going to try the … Continue reading TS Mk II – Mesh Network Pt.1

Temperature Sensor – Mk II

My first go at creating a simple battery powered temperature sensor was really interesting and fun to do, but, like any project, there are always way to make it better! For my Mark II sensor, there were a few things I wanted to improve: Use of mesh networking - Wifi Mesh or Bluetooth meshCapture more … Continue reading Temperature Sensor – Mk II

Set extractor fan to automatic – Part 1

A few months back, after we discovered mould growing on our bathroom ceiling, I replaced the wall mounted extractor fan with an in-line model, mounted in the loft. I never grasped how important the position of the van was in relation to the source of steam and the source of fresh air. Without going into … Continue reading Set extractor fan to automatic – Part 1

Adventures in deep sleep with ESP8266 and a temperature sensor

One of the small ESP8266 projects I did was the creation of a simple temperature sensor. I build a simple circuit, following the guidance from the following articles: https://iot-playground.com/blog/2-uncategorised/41-esp8266-ds18b20-temperature-sensor-arduino-ide https://www.instructables.com/id/IoT-Temperature-Sensor-With-ESP8266/ https://randomnerdtutorials.com/esp8266-ds18b20-temperature-sensor-web-server-with-arduino-ide/ I opted to use a probe on a long wire rather than using the little component. I ordered some of these from Amazon - … Continue reading Adventures in deep sleep with ESP8266 and a temperature sensor