Ian Renton

Software engineer and builder of robots
Bournemouth, UK

Hi! I'm Ian. My hobbies include tinkering with robots, radios and computers. For work I do the same stuff but get paid for it. I'm also a keen amateur cook, gardener and photographer.

You can email me at ian@ianrenton.com, view my CV, or find me on the air as MØTRT.

Recent Projects

ADIF Map Tool

Following the shutdown of the tool I used to make QSO maps for my blog posts, I decided to implement my own. I have expanded it to include some extra features I wanted to see, such as custom icons for outdoor activities, changeable basemaps and marker sizes, etc.

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POTA New Park Finder

For anyone chasing Parks on the Air (POTA) completion in their local area, this web-based tool shows local parks coloured according to whether you, or anyone, has activated them. POTA New Park Finder is a synthesis of my two recent Python-based utilities for POTA, but reworked as an interactive web application that is free for anyone to use.

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Billy Bass Sat Nav / Bluetooth Bass

This project takes my original 'Big Mouth Phatt Bass' in a slightly different direction, using the ESP32 chip's Bluetooth capability to turn the Billy Bass into a Bluetooth audio receiver that moves its head and mouth when audio is played.

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Famous Projects

Raspberry Tank

The Raspberry Tank was possibly the first tank-like robot powered by a Raspberry Pi, way back in 2012. It’s smartphone- or laptop-controlled, streams video from its webcam, fires plastic pellets and can navigate autonomously.

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Field Spotter

An easy-to-use, mobile-first Amateur Radio spotting tool for POTA, SOTA & WWFF. It provides a geographical and band position display, with filtering, to allow you to easily find park-to-park and summit-to-summit contacts.

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Plane/Sailing

“Plane/Sailing” is my home tracker for aircraft, ships and more! It receives radio signals via antennas on my house, processes them to share with popular tracking websites, and displays the combined results on a website using military symbology.

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Big Mouth Phatt Bass

To quote Winston Churchill, “No hour of life is wasted, that is spent making a Billy Bass play techno.” Big Mouth Phatt Bass is a Billy Bass hack using an ESP32 microcontroller to sync the fish motion to a variety of new songs.

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Linux on Linx 1010B Tablet

A guide on how to install Linux, plus a few bonus operating systems, on the low-cost Linx 1010B Windows tablet.

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Roast Dinner Timing Chart

Some Javascript magic to help you cook the perfect Sunday roast. Simply select your ingredients and a time to serve, and it will generate you a list of timed steps.

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Hypixel Skyblock Bazaar Flipping Calculator

A quick weekend project to help my kid make money in the Hypixel Skyblock Minecraft server, this simple JavaScript tool has rapidly become the most searched-for of all my software.

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Older Projects

Home Meteogram Display

My home Meteogram display is a passive weather and calendar display that lives in the kitchen and provides a customised weather forecast for the coming days on an ultra-wide screen.

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USV-01 “Harry Paye”

USV-01 “Harry Paye” is an off-the-shelf remote control boat refitted as a testbed for an autonomous navigation system, capable of speeds up to 40 knots.

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Quadcopter

Because the Raspberry Tank was confined to just the two boring dimensions, I built a quadcopter and put a Raspberry Pi on that too. It features live video streaming and is switchable between remote and autonomous control.

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All-Terrain Pi

The All-Terrain Pi is a “off-road” remote control toy fitted with a Raspberry Pi, with live video streaming, controllable by touch/tilt input from a smartphone, and capable of running programs written in Scratch.

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More Projects →

Blog

POTA as Ingress

Written on Friday 25 Apr 2025

A conversation on fedi earlier today got me thinking about the idea of turning Parks on the Air into an Ingress-style game. The data is all out there—reference points with defined locations, “most recent activator” data; the POTA API itself is halfway there to the kind of server you would...

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52 Week Ham Radio Challenge Roundup: Weeks 13-16

Written on Sunday 20 Apr 2025

If you’ve read the first post in this series or are playing along yourself, you’ll be aware of the 52 Week Ham Radio Challenge. If not, hit up that link for the details! This post covers the challenges from weeks 13-16, which were: Make a QSO from an unusual location...

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POTA/WWFF Activation Report: Ballard Down

Written on Sunday 20 Apr 2025

This weekend was both POTA’s Support Your Parks Spring event and week 16 of the 52-week Ham Challenge, “Make a contact with a xOTA station”, so naturally it was time for more outdoor radio. I headed up to Ballard Down, GB-0082 for POTA and GFF-0099 for WWFF. And when I...

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POTA/BOTA Activation Report: Greenham Common

Written on Friday 11 Apr 2025

Family stuff saw me in Newbury this morning with three hours to kill and nothing planned. Obviously it was time for more outdoor radio nonsense. While Newbury and the surrounding area have a number of nice-looking parks, I settled on the only one with a cafe, its own amateur radio...

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RaDAR Rally Report, Spring 2025

Written on Sunday 6 Apr 2025

Unless this is your first time reading my blog, you probably know that I like amateur radio and hiking. I’m also a fan of poring over maps, meticulous planning, and madcap races against the clock. I spent months agonising over backpacks, eventually settling on one I could operate my radio...

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