Temperature sensor LM35

In this project we will be using a LM35 precession temperature sensor to read the current temperature and then output that data via serial to the computer so it can be read.

Potentiometer with LEDs and "if" commands

In this beginners project I will show you two key parts, one being a component the potentiometer and the other is a software command called "if".

*What is a potentiometer*

A potentiometer or "pot" as it is commonly know is a voltage divider (WIKI LINK) but rather than two preset resistors as you will find used in any old text book, this one you can change the resistance and measure the voltage out.

Potentiometers are used all over the place for all sorts of things, if you have volume controls in-line on headphone then that is possibly going to be one.

Serial - Computer to Arduino

This is a two part project, in this first part we will use the serial "instruction" from a computer to turn on an LED.

In the second part we will use the Arduino to send and "instruction" to the computer. (coming in a few weeks)

* What you need *

 For this project you will need:

1. Arduino UNO or NANO
2. Your Computer with the Arduino IDE and a USB cable
3. 2 x LED (two different colours)
4. 2 x Resistor 150k Ohm
5. Jumper wires
6. Breadboard

 

4511 BCD to 7 segment decoder - 7 Segment display

In this project we will look at the 4511 chip and get it to display and output to a standard common cathode 7 segment display.

By the end of this project you will have a fully working chip that only uses a few pins from the Arduino and gives you an awesome number display that's easy to change!

The UNO up close and personnel

So let’s is started showing you the details of the Arduino UNO, I'll point out the inputs and outputs and a few key components of interest.

I will show you the genuine boards and also a few of my clones I have floating around. You will be able to see the differences between the Duel in Line Package (DIP) and the Surface Mounted (SMD) Atmel Atmega328 chips.