David's Portfolio
Projects
Undergraduate
An automatic dispenser to monitor the distribution of spices in a popular catfish restaurant in Ghana. This was done for monitoring and accountability as the manager could not track the amount of spices required
Automatic Spice Dispenser for Catfish
Designed a digital-based retrofitting unit to enable automatic meter reading for magnetic water meter systems. The device calculates water consumption and provide customers with real-time monitoring and a reliable billing system
Digitalized Water Meter System
A low-cost solar electric maize dryer designed to empower small-holder farmers to reduce postharvest losses by allowing farmers to dry maize in all weather situations
Solar Electric Maize Dryer
1. A device that alerts waste management companies when the bin is almost full.
2. A a container for waste so people do not have to bear the sight of overflowing waste
Waste Busters
A bicycle water pump designed to help inhabitants of a village for easy access to water
Cycle Water Pump
My team and I assisted children at the Christ Faith Foster Home School to code C++ in the Arduino programming environment, as well as control several electronic components (LEDs, Servo motors, buzzers, LDRs, And Ultrasonic sensors.
Arduino Tutoring
Exploring the effects of turbines in hydroelectric power, my team and I designed a prototype of a turbine and connected it to a voltmeter. We varied the fluid velocity at 12.5cm and 3.1cm that confirmed metal, plastic, plexiglass, wood and cardboard as the most efficient material respectively
Hydroelectric Turbine
Mini Projects
An embedded systems LCD game programmed in C where a created soldier character earns digital points by fighting against enemies.
LCD Sharp Shooter Game
After studying Physics II, my team and I designed an electronic piano using resistors and capacitors. This piano offers bluetooth connectivity and can play music through its speakers from the device connected
Electronic Piano
A battery-powered weighing scale designed using a micro-controller and a load cell. The units of mass could switch between kg, g, or ounces. The percentage error compared to a real scale was a 3 to 4 % difference.
Weighing Scale
A charger made from wood. I applied the concept of conductivity of metals and made a charger using wood and metals. This woodblock charger was tested by charging a phone which worked perfectly
Woodblock Charger