Today we are going to attempt to build a rocket launch system with the arduino. Expect some pictures soon!
Sunday, May 31, 2015
Friday, May 29, 2015
We have created the code to display digits, now it is time to create a timer. We are going to have two main parts, one to select the duration and another to start the count down.
Wednesday, May 27, 2015
Using moduloSo we can display different numbers but how can we make a function to display a certain number? To do this we are going to use an operator called modulo which select the remainder of a number after a division.
Monday, May 25, 2015
Display Different NumbersPreviously we covered how to display single numbers but we want to be able to display more than single digit numbers. To do this we are going to use something called multiplexing. This involves quickly flickering each segment on to display a certain number.
Saturday, May 23, 2015
Display NumbersThere are many occasions when it is useful to display numbers from an arduino. This tutorial will cover how to use a 4 digit seven segment display.
ComponentsFor this tutorial I will be using a display from spark fun. It has 4 segments with a decimal point for each number. If you don't have access to this device then your wiring might be a little different but the software is the same. Seven segments are labeled as shown in this diagram:
|Seven segment - from Wikipedia|