A microcontroller is a self-contained, but very limited computer — halfway between a computer and a component. The top reasons to integrate a microcontroller into your projects are connectivity and interactivity, and one easy way to get your microcontroller talking with the outside world is standard asynchronous serial I/O. Many devices can communicate this way, […]
Beyond the Arduino IDE: AVR USART Serial Continue Reading
For an upcoming project I needed a pneumatic ram with a closed loop control system so I could position it accurately. Didn’t have the budget for an off the shelf solution, so I bodged one together with an ardunio, a couple air solenoid valves, and a pair of potentiometers. How it works is one potentiometer
David Bynoe works in progress Continue Reading
What is a tilt sensor? Tilt sensors allow you to detect orientation or inclination. They are small, inexpensive, low-power and easy-to-use. If used properly, they will not wear out. Their simplicity makes them popular for toys, gadgets and appliances. Sometimes they are referred to as “mercury switches”, “tilt switches” or “rolling ball sensors” for obvious
Tilt Sensor Tutorial using arduino Continue Reading
If you ever wanted to integrate RFID functionality into your project, this small tutorial might help you accomplish that. I used the RDM630 module from seeedstudio in its UART version. It comes on a small board with presoldered connectors which fits perfectly on a breadboard. You only need to connect the antenna to the two pin socket.
RFID with Arduino Continue Reading
The Arduino reads temperature from a MCP9700 temperature sensor IC and displays the temperature in the Arduino IDE serial monitor window. Also see the Arduino LCD thermometer tutorial (tutorial 14). Prerequisites Complete Tutorial 9: Using the Arduino Serial Port before attempting this tutorial. Components Besides an Arduino Uno board, USB cable, wire links and a breadboard, you will need:
Arduino Serial Thermometer Continue Reading
Open-source hardware? Arduino(tm) is the first name to come to mind! As great as it is, sometimes we need a small microcontroller solution for a project, or a stripped-down version for cost-effectiveness. The Ardweeny is the solution. These small kits are 100% compatible with the Arduino programming environment, are very small, (and unlike the regular
In this tutorial, eight LEDs are interfaced to the Arduino Uno board. This is not complicated – it is just like interfacing a single LED to the Arduino as done in tutorial 3, but eight times over. A program is then loaded to the Arduino that will turn the eight LEDs into a “Knight rider”
Arduino Knight Rider Continue Reading
In this tutorial you will connect a LCD (Liquid Crystal Display) to the Arduino Uno and then run the Arduino LCD example programs that are built into the Arduino IDE. Prerequisites It is recommended for beginners to complete all the Arduino tutorials up to and including Tutorial 10: Ten Arduino Projects for Absolute Beginners. Read
Pyroelectric (“Passive”) InfraRed sensors: ”’What is a PIR sensor?”’ PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and
PIR Motion Sensor Tutorial using arduino Continue Reading
Scott W Harden has built an updated version of his ECG circuit for tracking his heartbeat. The main goal of the update is to provide a hack for collecting heartbeat with minimal h/w cost and circuit complexity. As you can see from the project photo above, the heartbeat detector is based on photoplethysmogram. Scott nicely describes the basics
Very simple ECG + Pulse Oximeter using arduino Continue Reading
