![]() ![]() Then we would be able to control the traffic light without the need for additional wiring. Add the relay board remotely, by adding radio capabilities with the nRF24L01 boards.I know some clubs have cool/bigger traffic lights controlled by switches. Add a relay-board so we can control some bigger traffic lights with 127 V light bulbs.Replace the 16x2 LCD for a bigger one, 20x4, so we'll have space to show if we're in the grace period or not as well as other useful information.The only libraries needed are SPI and LiquidCrystal (you should have that as part of you Arduino IDE basic installation). The code is straightforward and I added comments to the major sections of it. I also added a little round frame for each set of LEDs to make it more evident.Īn idea for the future is to 3D print this, instead of using paper as I did (my 3D printer is currently offline for some improvements). 2 pieces: 1/8" X 12" X 12" (3 X 300 x 300 mm) Baltic Birch PlywoodĪs I moved from the prototype to the final version, I thought about several possibilities for this part, but I decided to keep it simple: I just reused the LED wiring I had before, drilled some holes for the LEDs, used hot glue to keep them in place and used a heavy blue paper to do the finishing, a.k.a. ![]() 18 LEDs: 6 Red, 6 yellow and 6 green for both the panel and the traffic light that goes on top of the device so people speaking can see it.1 x Snappable PC BreadBoard for all the wire soldering an to hold the Arduino Header.2 x 15 pin female header (to hold the Arduino Nano).8 x Generic Buttons (Uxcell 10 x Momentary SPST NO Red Push Button Switch AC 250V/1.5A 125V/3A).1 x Adafruit blue LCD I got as part of ADABOX 2.I added an LCD screen to show the type of preset being used, and also a custom/manual timer for any specific need not covered by the presets. This project automates this process of turning lights on and off for the most common tasks. For instance a Standard Speech should be between 5 and 7 minutes: you get a green light when you reach the 5 minute mark, a yellow light at 6 minute and red one after 7 minutes. Toastmasters Timer is basically a timer-controlled traffic light with some presets for specific tasks which are time-bound at any Toastmasters meeting. That's when I decided to find a nice project for my Arduino Nano. This timing process often is manual, error-prone and a little boring. Take a look, you'll probably find a club near you that you can visit to learn a little more.Īnyway, one of the things we learn at Toastmasters is to deliver speeches and, on top of other evaluation criteria, we have a person controlling the time of your speech, as we have to keep it between specified thresholds. Small board - great value (for how a little Arduino Nano is improving our Toastmasters meetings).įor those who are still wondering what Toastmasters means, it is a non-profit organization which helps people develop their communication and leadership skills.
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