Recently i have been given a task to design a project "Match the following" for an Expo, i thought of making use of normal circuits but at last i come to know that there is some logic in this project.
For each question there is one correct option and the other wrong options. For each correct answers, the corresponding Green LED glows and for each wrong answers, the corresponding Red LED glows. How can i build this project using Arduino?
Thanks in advance!
Yes Arduino could do this ...not thought about it much but ..You could use “if” or maybe “switch case” , maybe something with an array ?? but have you used an Arduino before ? Any programming experience ?
If this is an exam/school type project , you need to do the research and work it through . people here will help with detailed coding /circuit issues.
You could put a button beside each label of columns A and B then watch for an A button pressed and then a B button.
Do all of the A's need to be matched before the colored lights come on or light up for every match?
There is a lot of how this is to act that you have not mentioned.
Look for red-green leds. They can be off or red or green or amber (red+green->orange/yellow), only 1 light needed per item in A. Items not matched yet can be amber rather than off, user will know where the lights are and that they are active. RG leds are cheaper than RGB leds by half or more.
All of the buttons need to be watched all the time (as far as slow human senses can tell, Arduino is 10000x faster) and you will need help seeing ways to do that.
Alternate to buttons would be items in A have a wire and plug (bigger & stronger than jumper) that plug into holes next to B items. The wires should be different colors easy to tell apart and easy to see, button presses cannot show the lines.
If each item in A and B has a conductive spot to touch then a user could put a finger on column A touch spot and another finger on a column B touch spot and weak current flow through the user would connect the two electrically. This won't work well (or maybe at all) for very dry or dirty skin and it won't show the connect once the fingers move.
If A and B are arranged as columns and rows then the intersections would be 1 touch to connect instead of 2.
hammy:
Yes Arduino could do this ...not thought about it much but ..You could use “if” or maybe “switch case” , maybe something with an array ?? but have you used an Arduino before ? Any programming experience ?
If this is an exam/school type project , you need to do the research and work it through . people here will help with detailed coding /circuit issues.
I am an Electronics engg graduate and yes I have more experience in working with Arduino but this, this logic is bit confusing.
Is there any possibility of using Multiplexers for each question in this Match the following to find the correct answers or if any suggestions?
use a lighted button for each question and a lighted button next to each answer.
when you press the lighted button next to the question, the back-light comes on.
then when you press the lighted button next to the answers, you get red or green
if the device is to have wires.
then you can have each question wire plug into one answer.
Q1 through Q5
bring the pin for Q1 high, test if what input it is connected to.
repeat for all questions.
if you have have to have all wires plugged in before revealing the answer,, then just have each output go HIGH for a second, then low, next goes HIGH, and repeats,
only when you have 5 inputs, would the score show.
remember, you can use the analog pins as digital if you want.
chandrasekar_Balakumar:
I am an Electronics engg graduate and yes I have more experience in working with Arduino but this, this logic is bit confusing.
Is there any possibility of using Multiplexers for each question in this Match the following to find the correct answers or if any suggestions?
You don't need multiplexers unless your goal is to make things more complicated than necessary.
What we need and keep asking for is more DESCRIPTION of how it is supposed to appear.
I have had friends who are good EE's. They could write code to spec but it was mediocre as to user interface and method.
