Latest from the Blog
Track Weather Balloons: Monitoring with an RTL-SDR and Old Laptop
In my previous post I looked at weather balloons and sondehub.org, the online tracking site where you can monitor the balloons. In this post I will cover my setup of a monitoring station using an SDR to monitor balloons and upload the data to SondeHub. It is much simpler and cheaper than I expected. Monitoring…
Track Weather Balloons: A Beginner’s Adventure
I’ve had an interest in weather balloons since the 1970’s. I couldn’t have imagined back then the amazing resources that are now available to monitor and track them and that I would so easily set up a monitoring station. Why would you want to monitor radiosondes? I have found it is surprisingly interesting and it…
Creating Simple Web Apps with Claude and Hosting with GitHub Pages
It’s a lot easier to use AI to create a simple web app and put it online than I expected. A while back I went looking for an online tool to convert images to RGB565 for use with Arduino displays. The ones I found were covered in ads, and some didn’t exactly inspire confidence in…
Building a Simple Internet Clock Using an ESP32 and ST7789 LCD
If there was only one type of electronics project I was allowed to work on, I think it would be clocks. I’ve made a few and I regularly get the urge to make more. I’ve been thinking about making one using an ESP32 and LCD display that synchronises with internet time servers.. That’s how this…
ESP32 Mailbox and Driveway Alarm: What Worked and What Didn’t
Back on 3 October 2023 I wrote about the issues I was having building a notifier that would send alerts to our house whenever the mailbox flap opened or someone entered our driveway. Building a smart mailbox: Challenges and unsolved issues. After 2 and a half years and more tinkering I have made some progress.…
Rebuilding My SDR Tuning Knob in Spotted Gum
A while back I made a Tuning Wheel For SDR Radio on my PC Using an Angle Sensor. When plugged into a PC, this behaves as a mouse wheel. I’m using it as a tuning knob for SDR software. It works well but I was never very happy with the enclosure. I guess ‘enclosure’ is…
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