Stephen Tierney

I made a small Home Assistant system that detects cats in the backyard with Frigate and turns on a sprinkler for 30 seconds.

I published an ESPHome external component for HW211-family heat pump controllers, generating local Modbus sensors and optional controls for Home Assistant.

I replaced the proprietary Wi-Fi module in my heat pump hot water system with a local ESPHome adapter built using a Waveshare ESP32-S3-RS485-CAN module.

I added an ESPHome fan controller to my disk shelf, using a DS18B20 temperature probe, PWM fan control, and a small script to log HDD temperatures.

I converted a PETKIT Fresh Element Mini dry food dispenser to run locally with ESPHome, removing the need for a cloud connection.

I turned my ESPHome LVGL light touchpads into reusable room controllers for lamps, weather, screen sleep, and per-room aircon control.

ESPHome weekly roundup for 4 May: Maxi1134's highly suspicious bed presence project using 16 load cells, HX711 sensors, and Home Assistant.

I spoke at SydPy about open navigation, NaviLens, and using Python to build a free alternative for resolving navigation tags in public spaces.

Alison Wong and I gave a UNSW seminar on teaching at scale, sharing strategies for active learning, tutorial support, marking, and programming education.

ESPHome weekly-ish roundup from Discord: BLE MIDI Remote for ESPHome, SnapSpot, and RealDeco's Sendspin Headphones.

ESPHome weekly roundup for 18 April: a tiny Sendspin speaker amplifier, ESPControl for smart home touch pads, and esphome-zerocode.

I updated my Home Assistant evening lights automation to use the ambient light sensor from my Ecowitt weather station, so the lamps turn on when it is actually dark.

I set up an Ecowitt weather station locally with WSView Plus and Home Assistant, then mounted the WS69 sensor array above the greenhouse.

I converted a strange looking mains powered lamp to be USB-C powered and programmable using ESPHome.

I converted a Heliograf soy sauce lamp into a Home Assistant controlled smart light using ESPHome.

I developed a selection procedure for image formation and solver hyperparameters for image restoration tasks, which removes the need for hand tuning.

Alison Wong and I were awarded both the Innovation Award and Allan Christie Innovation Award at ASCILITE 2025 for our Karel initiative.

This paper presented at ASCILITE 2025 discusses how our Karel initiative is empowering women in programming.

I presented at the Data and AI track of PyCon AU 2025 about the potential problems of NaviLens.

I assembled a docker container or wyoming and whisper on intel GPUs.

I became a maintainer of the rathole project, which is a secure, stable and high-performance reverse proxy for NAT traversal, written in Rust.

I released caddy-hostnames, which automatically publishes .local hostnames from Docker containers via mDNS using Caddy-Docker-Proxy.

This project provides a reference implementation of NaviLens and ddTag for educational or personal use.

Alison Wong and I presented at the Education track of PyCon AU 2024 about our use of Karel to increase in confidence, interest and ultimately ability in programming.

Alison Wong and I were awarded the University of Sydney Business School (USBS) Wayne Lonergan Award, which is the most competitive teaching award in the school and is accompanied with a $10,000 AUD prize.

I've updated a previous post on the Two Candles, One Cake problem by providing new visualisations and generalisation ability.

I've updated the Too Many Guns site to use MapLibre and partial property updates.

Alison Wong and I presented at the University of Sydney Business School Learning and Teaching Forum about our project using Karel to help students visualise code execution and encourage students to practise programming.

I spoke at a Business Analytics 'Brown Bag' with Alison Wong about our project using Karel to o help students visualise code execution and encourage students to practise and develop their programming skills.

I received the Educational Innovation Award in the category 'Transform assessment and feedback practices' for my feed-forward assessment design in QBUS5010 Introduction to Dashboarding.

Alison Wong and I presented at the Education track of PyCon AU 2023 about realtime collaborative programming in a university education context.

Alison Wong and I presented at the Education track of PyCon AU 2023 about our approach to assurance of learning for automatically marked assessments.

Alison Wong and I were awarded a Teaching and Learning Innovation Grant to the value of $5000 for the support the design, deployment, and evaluation of a games-based, playful, or simulated learning intervention.

I co-presented at the University of Sydney Business School Learning and Teaching Forum about a reflective approach to students as partners that was developed for QBUS5010 Intro to Dashboarding and Data Visualisation.

The University of Sydney Business School's honour society, Beta Gamma Sigma recognises academic staff and business professionals through the Chapter Honouree Award.

I co-authored a blog post about a reflective approach to students as partners that was developed for QBUS5010 Intro to Dashboarding and Data Visualisation.

I was promoted from Lecturer to Senior Lecturer in the 2022 promotions round.

As a team, Alison Wong, Priyanka Cheema and myself were awarded the University of Sydney Business School (USBS) Toolbox & Innovator Award, which recognises high quality, novel teaching practices and exceptional contributions to the USBS teaching community.

I co-presented at the University of Sydney Business School Learning and Teaching Forum about embedding dynamic and interactive visualisations in learning material using plotly.

Priyanka Cheema and I presented at the University of Sydney Business School Learning and Teaching Forum about detecting and reducing academic misconduct in an introductory programming unit.

I designed and developed this introductory dashboarding unit with assistance from Ardi Mirzaei.

I wrote a proof of concept solver for John Siracusa's Frame Game.

I solved the 'Two Candles, One Cake' problem using Python.

Co-authored blog post on interactive elements of BUSS6002.

I spoke at a Business Analytics 'Brown Bag' seminar on wordle strategies and the broader applications for diagnoses and sequential experimental design.

I wrote a fast solver for wordle written in Python.

Alison Wong and I presented at the University of Sydney Business School Learning and Teaching Forum about our innovative approach to teaching online.

I added support for the SCD4X CO2 sensor to ESPHome.

I added support for the LTR390 UV and ambient light sensor to ESPHome.

This Sydney Morning Herald article uses visualiations from my 'Teacher Pay Comparison' dashboard.