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3rd Revision of my PCB and still a lot to learn!
I received the 3rd revision of my Zigbee PCBs from Aisler today and unfortunately, there are still small issues. Revision 3 of the these boards saw me switch from SMD to through-hole. Working with surface mounted components seemed like a great idea, but without the proper tools, I wasn’t equipped… Read ⇢
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Shelly “Detached Mode” Failsafe
In my latest YouTube video, I take a look at my Shelly 1 Failsafe. You can find all the details here https://github.com/tomasmcguinness/shelly-detached-mode-python-ha-watchdog Read ⇢
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The Matter chip-tool doesn’t work on Windows so I use a Raspberry Pi instead!
I wanted to be able to run the Matter chip-tool on Windows. Mostly so I could learn about commissioning and binding. As I was starting to tinker with Matter devices like Light Switches, I needed the chip-tool. This is because some devices need “binding”, which I can’t do in Home… Read ⇢
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Further attempts at decoding an FSK signal
Back to my SDR again. I pick up from where I left off. After moving my antenna around and listening to pilots landing at Birmingham, I decided to give my signal another go. I went back to SDR++ and immediately noticed something very strange! The same pulse, every second, was… Read ⇢
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Sending and decoding a 433MHz signal with an ESP32, a CC1101 and Universal Radio Hacker
In this blog post, I write about how my attempts to send and decode a binary message over 433MHz Read ⇢
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My nRF52840 logging rig is up and running!
In a previous post, I wrote about issues with my Zigbee code, which caused my device to become unresponsive. To aid my investigation, I figured out how to use a Raspberry Pi to capture the logs. As the issue with code takes a few days to show up, I needed… Read ⇢
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Record RTT logs from an nRF52840 with an RPi
As I continue development of my Zigbee Flow and Return temperature sensor, I’m worried about the stability of my code. Once I’d finished the code, I deployed it to a nRF52840DK, connected to the mains i.e. on all the time. After the first few days, Home Assistant reported it as… Read ⇢
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Detecting a 433MHz Kinetic Push Switch with an ESP32 – Part 1
I recently published a video to my YouTube channel about Kinetic Switches. Kinetic switches are ones that don’t have a battery. Rather they use the energy generated during the push to send radio signals. Before December, 2024, I didn’t know they were even a thing. In my video, I look… Read ⇢
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Zigbee F.A.R.T. PCB v0.2
Learning from the few mistakes I made with v0.1, I’ve just send another revision to manufacture with aisler.net! This board includes several small tweaks. Changed terminal connectors I originally used simple screw terminals for the temperature probes. As I’ve figured out JST connectors and how to crimp them, I changed… Read ⇢
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