Things I've built
for fun _{(and to pass university)}

Wildlife monitoring that earned a distinction

Final year BEng project — a GPS/LoRa-enabled collar that records infrasonic elephant vocalisations for up to a year. Earned a distinction and was featured in a BBC business story on South African tech innovation.

Live South African deal price history

Price tracking web app for OneDayOnly.co.za. Scrapes daily deals, records full price history, and serves a searchable UI. Exposed publicly via Cloudflare Tunnel at odo-tracker.amkyan.com.

Fastest line-following robot ever built at UP

An autonomous line-following robot built for the 2018 University of Pretoria robot race. Features RGB photosensitive sensor arrays, WiFi, custom colour filtering algorithm — and beat every previous record.

Paper trading algorithm with a public journal

Algorithmic paper trading bot running on Alpaca. Scans 40+ symbols, scores by RSI, momentum, Bollinger Bands and gap analysis. Public daily journal at butler-hihi.github.io/arthur-trades.

Glove-controlled combat robot via WebSocket P2P

Inspired by Robot Wars and Battlebots. An accelerometer on a glove sends commands over a WebSocket-enabled P2P Wi-Fi bridge to a microcontroller that handles motor control and robot intelligence.

USB-powered 4-port charger for robotics projects

A custom 4-port USB Li-ion charger built to conveniently power multiple robotics projects. Designed around the charging requirements of the various batteries used in other projects.

Infrastructure monitoring with AI-powered incident analysis

Self-hosted infrastructure monitoring agent that tracks exceptions, heartbeat, and cron jobs across services. Provides a dashboard, time-series metrics, and AI-generated incident summaries via Slack alerts.