HUMAN TRAFFIC LED Project:
This project is made for ilight event participants where they can attach a LED strip on their bags to indicate the direction they are moving towards. There will be 2 contact points for right and left respectively. When the user touches the right contact point, the LED will light up in green signaling right and vice versa for the left contact point (very much alike to car signals). When both contact points are touched, the LED turns red to signal the stopping motion of the participant.
This project can also be implemented in other scenarios such as: Teachers bringing young students out for learning journeys or tour guides conducting tours. The teacher or the tour guide can also place this LED strip on their bags or flag (sometimes board) to signal the direction they are moving towards without shouting all the time.
PROCESS:
Initially we tried to experiment the capacitive touch with aluminum foil via led bulb first using <CapacitiveSensor.h>.
Then, we moved on to using 2 LED bulbs to simulate the left and right capacitive sensors.
After which, the code was modified to accommodate the LED strip and each contact point is made to light up the led strips in either direction with <FastLED.h>.
The led strip is supposed to light up in red (to represent the stopping motion of the user) when both contact points are touched. However, in this case, there is a glitch whereby the green colour is still lighted up followed by the red.
Hence, we did some adjustments and the corrections seem to rectify the errors!
This is our code:
For ease of usage, we extended the resistor touch points using wires and aluminium foil.
We also made “control sticks” to make it more user-friendly.
