Stig
Course
Electrical engineering
Duration
4 weeks
Project by Ludvig Karlsson & Anton Hansen
Year
2022
Semester
5th
Brief - Design a electronic product featuring two input and two output components using the Circuit Playground Express, a compact computer, in collaboration with Microsoft's Adafruit coding platform.
Inputs
On/off switch
Distance
Outputs
Light
Elevation
In our design process, we aimed to reimagine the traditional luminaire. Unlike the standard luminaires with a on/off switch, we envisioned a luminaire that could be adjusted by a simple hand movement. To achieve this, we would have to integrate technology to measure the distance between the lamp and the user's hand, enabling a precise height control and enhancing the user experience.
Our project began with sketching to visualize our concept, helping us visualize the luminaire's appearance and how it would work. To anticipate any issues, we quickly made a basic model, giving us insight into size and how the elevation feature might function. This also highlighted the importance of accounting for tolerances to ensure a seamless transition in the design.
To measure the distance between the luminaire and the hand, we used an ultrasound distance meter. This device emits sound pulses and captures echoes, which we translated into centimeters through coding. We established a forever loop to control pulse frequency and data interpretation, ensuring precise distance measurements.
We've also incorporated an analog switch for a manual power-off option. When switched off, it shuts down the entire system, turning off the light and deactivating the sensor.
- Circuit Playground Express
- 5V LED
- Resistor
- Ultrasonic Sensor
- On/Off Switch
- Breadboard
- Modified Servo for elevation
