Project is a timed stoplight controller using green, yellow and red LEDs. It’s a good intro into controlling (turning on / off) multiple devices.
MATERIALS
- Raspberry Pi
- 3 LEDs (green, yellow, red)
- Breadboard
- 4 Jumpers
- 3 Resistors (we used 330 ohm. Orange, orange, brown)
WARNING: Warning: mis-wiring or mis-programming your Pi or miswiring of accessories can ruin the Pi and accessories.
Information/drawings offered as is. Use at your own risk. If you don’t know, learn first.
RASPBERRY PI EXPERIMENTS
Experiment 1 – Blink LED
Experiment 2 – Stoplight / Traffic-light
Experiment 3 – Massive Power Control
Experiment 4 – Polling to Detect Input
Experiment 5 – Interrupts to Detect Input
Experiment 6 – Counter
Experiment 7 – Tachometer (Beta)
Experiment 7x – Laser Morse Code Transmitter
Experiment 08 – Chronograph / Timer
Experiment 09 – Ultrasonic Distance Measurement
Experiment 10 – Ultrasonic High Accuracy Distance Measurement
Experiment 11 – Ultrasonic Velocity & Speed Measurement
Experiment 12 – Raspberry Pi Ultrasonic Accelerometer – 12 (FAIL)
https://www.youtube.com/edit?video_id=GZS3lKiZN7A
Experiment 13 – The Speed of Pi – How Fast Are The GPIO Ports?
Experiment 14 – Raspberry Pi Stepper Motor 1
Experiment 15 – Analog to Digital Converter (I2C-ADS)
Experiment 15.1 – 8 Channel Upgrade to A2D Converter Software
Experiment 16 – In Progress…
Experiment 17 – Experiment on RFI & The RPi – Does RFI Cause Inconsistent Readings?
Experiment 18a – Part 1/2: Stepper Motor using DRV8825 driver board
Experiment 18b – Part 2/2: Stepper Motor using DRV8825 driver board
Experiment 18-1 Pre-Programmed Stepper Motor Control
Post time: Feb-07-2017