Available for collaboration & speaking
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Based in Ghana 🇬🇭 • Building for Africa
I design autonomous systems and embedded hardware, and I train the next generation of African engineers to do the same.
Selected Work
Featured Projects
A sample of active and recently completed engineering work — hover to pause.
RAVen (Autonomous Drone Delivery Stystem)
RAVen is an autonomous delivery drone built for campus and last-mile logistics. It flies preset routes on its own, handling takeoff, GPS navigation, and landing without a pilot, using the PX4 and ArduPilot flight stacks on a Pixhawk controller with Python and MAVLink. The project earned a Silver Award representing KNUST at the Africa Division of the China International College Students' Innovation Competition.
Smart Energy Monitoring System
An IoT-based smart energy meter that tracks electricity use in real time and helps cut waste, overload losses, and power theft. Built on an ESP32 and Raspberry pi Pico controllers with current and voltage sensors, it detects empty rooms with Ai-Thinker Rd-03D and switches off idle appliances, allows remote control over Bluetooth and WiFi, and sends live readings to a cloud dashboard for monitoring. It was presented as an oral paper at the Russian-African Forum of Young Scientists.
Lenz (AI-powered Agricultural Drone)
Lenz is an AI-powered agricultural drone that scans farmland from the air and detects crop diseases early. Using an onboard camera with computer vision (OpenCV and a YOLO-based model) on the PX4 and ArduPilot flight stacks, it flies fields autonomously, spots signs of disease before they spread, and can carry out precision pesticide spraying, cutting chemical use while giving farmers free, actionable crop-health insights. As part of Team Lenz, the project won the Outstanding Innovation Award and $3,000 at the Presidential AI & Robotics Competition (Elevate AI Africa).
MindBot
MindBot is an AI-powered virtual STEM learning platform that brings the whole lab online for students who can't afford physical kits. It combines an AI tutor with built-in code compilers and virtual simulators for robotics and electronics, so learners can write code, run experiments, and build projects entirely in the browser. It's currently in live pilot with students across several schools in Ghana, giving young people hands-on STEM practice they would otherwise never get.
Smart Cane
Smart Cane is a smart walking stick that helps blind and visually impaired people navigate their surroundings with confidence. Built on Arduino with ultrasonic sensors, it detects obstacles in the user's path and alerts them through voice notifications and vibrations, turning distance and direction into signals they can feel and hear. The goal is a low-cost, dependable mobility aid that gives users greater independence and safety as they move.
About Me
A builder, a teacher, and a lifelong student.
Appau-Siaw Richmond Yeboah is a multi-disciplinary engineer whose work spans robotics, embedded systems, artificial intelligence, and the Internet of Things. Over nearly a decade he has designed autonomous systems, built safety-critical hardware, and shipped products that operate in demanding real-world conditions.
In parallel with his engineering practice, Richmond has become one of the most active STEM educators in his region — coaching championship robotics teams, developing curricula, and mentoring hundreds of students who have gone on to pursue careers in technology.
Research
Where I'm pushing the frontier
Active research interests spanning autonomous systems, edge intelligence, and education.
Multimodal Sensor Electronics & Embedded Systems
I design embedded sensor nodes that combine multiple sensors, voltage, current, temperature, humidity, and light, on a single low-power controller. Working with platforms like the ESP32 and Raspberry Pi, I focus on multimodal sensor integration, low-power embedded design, and real-time data acquisition. My current work applies this to environment-aware sensing of solar energy generation, linking real-world conditions to system performance.
AI-Enabled Environmental & Agricultural Sensing
I apply artificial intelligence and computer vision to environmental and agricultural challenges. My work includes an AI-powered aerial imaging pipeline (Lenz) that uses computer vision to detect crop disease early, cutting chemical use and giving farmers free crop-health insights, as well as sensor-based study of how environmental conditions affect the growth of short-cycle crops. My focus is responsible, low-cost AI that can actually be deployed in resource-constrained farming communities.
IoT Systems & Wireless Sensor Networks
I build connected systems that sense, communicate, and respond in real time. This includes an AI- and IoT-based smart energy meter that monitors power use to reduce electricity waste, overload, and theft, along with cloud and IoT dashboards for remote monitoring and control. I work across wireless communication technologies, WiFi, Bluetooth, GSM, and LoRa, to design networks that stay reliable even in low-resource settings.
Autonomous Robotic Systems (UAV, Land & Water)
I design autonomous robots that navigate and operate on their own across air, land, and water. My work includes autonomous drones built on the PX4 and ArduPilot flight stacks with Pixhawk controllers, handling GPS waypoint navigation, autonomous takeoff and landing, and onboard decision-making, from delivery drones like RAVen to precision-agriculture drones. I focus on the control, navigation, and embedded intelligence that let these systems work reliably in the real world.
Teaching & Coaching
Building the next generation of engineers
Teaching
I teach by building. Every concept is anchored to something a student can touch, break, and fix. My classrooms prioritize hands-on projects, peer collaboration, and the kind of productive struggle that turns curiosity into competence — regardless of the resources available.
A championship track record
Beyond the classroom, I mentor students one-on-one — helping them build portfolios, land internships, and find their footing in engineering careers. Several have gone on to work in robotics labs, tech companies, and universities.
Entrepreneurship
Companies I've founded & built
Capabilities
Skills at a glance
Proficiency across the core domains I work in day to day.
Journey
Career milestones
Video Library
Talks, demos & lessons
Let's Build Something Amazing Together
Whether you're hiring, funding, collaborating on research, or bringing STEM to your students — I'd love to hear from you.
richtech90@gmail.com