Wheelchair Collision Warning Device

Description

This device is considered a "Wheelchair Proximity Alert System". It is a compact device that mounts onto the backside (cloth part) of a wheelchair. It warns the user if obstacles are dangerously close (~0.5ft away). All the electronics needed come with the Arduino UNO R3 kit (which can be bought on amazon), alongside a rocker switch to toggle the board on and off. Here are the specific components needed: - 9V Battery w/ DC connector cable - Rocker Switch (Pack for ~$5 on Amazon) - Arduino UNO R3 Board - Mini Breadboard - Ultrasonic Sensor - Passive Buzzer - Jumper Wires Assembly (For Electronics): - 3D print the provided casing for the device. - Wire Sensor, Buzzer, and Arduino in the following way: GND from Arduino -> GND from Sensor 5V from Arduino -> VCC from Sensor Digital Pin 9 on Arduino -> TRIG on Sensor Digital Pin 10 on Arduino -> ECHO on Sensor GND from Arduino -> GND/NEG. end from Buzzer Digital Pin 6 from Arduino -> POS. end from Buzzer - Wire the rocker switch between the POS. wire on the DC connector for the 9V battery NOTE: Bend the Sensor's pins to be straight rather than at a 90 degree angle Once Completed, code the Arduino with the following code: define TRIG 9 define ECHO 10 define BUZZ 6 const float T1 = 15.24; const float T0 = 7.62; long readEchoUs() { digitalWrite(TRIG, LOW); delayMicroseconds(2); digitalWrite(TRIG, HIGH); delayMicroseconds(10); digitalWrite(TRIG, LOW); return pulseIn(ECHO, HIGH, 30000); } float readDistanceCm() { long us =…