This was a 2 hour project I whipped up in order to learn how to use a new Bluetooth LE 4.0 module I picked up at redbearlab.com, called a BLE Mini. I’ve since thought of several much simpler ways (and more dependable) to accomplish the same thing, such as simply lighting 3 LEDs behind weather […]
Bluetooth Weather Lamp Read More »
We built a system that uses eight air-clamping cylinders (McMaster-Carr 62185K64) to push down on a piece of glass to seal it to a sidewall. A number of times, the glass has cracked. So, this project is an attempt to come up with an inexpensive way of measuring how many pounds of force the cylinders
Working with a Load Cell and an Arduino Read More »
This Instructable will tell you how to use the IR (infrared) library on an Attiny. I will be using an Attiny85 with an Arduino Uno. I won’t cover how to upload sketches to the Attiny just how to use the IR library with it. the best tutorial on uploading sketches I’ve found is this YouTube
How to use the IR library with an attiny using Arduino Read More »
INTRODUCTION In the guide, I will explain how I managed to send data back and forth between a PC and Arduino via a cheap Bluetooth HC-05 transceiver, which can be found for less than $10 on ebay with the breakout board. The version I have used in this project does not have a breakout board so
Cheap 2-Way Bluetooth Connection Between Arduino and PC Read More »
Morse code was the breakthrough that made possible long-distance communication in the era of the telegraph. The code represents alphanumeric characters by short and long intervals of signal — those familiar dots and dashes. For many years passing a Morse code test was a prerequisite of getting a Ham license, but nowadays most radio amateurs
Arduino Morse Code Shield Read More »
Hello! This is the cheapest and easiest way to make a two-dimensional laser show projector. It uses just one pivoting mirror, powered by the focusing mechanism from a CD or other optical drive. They said it couldn’t be done, but Ljudmila‘s skunkworks GRL research facility delivers anyway! 😉 This design was first discovered in 2006
Micro LASER Show with a CD Lens Mechanism using Arduino Read More »
I do a lot of projects with Arduino’s and breadboards. Often as I work on a messy workbench, the Arduino or breadboard get jostled and the wires pop out of the headers or the breadboard. To solve this problem, I decided to make a simple acrylic stand for mounting an Arduino and a breadboard that
Acrylic Arduino Prototyping Stand Read More »
This is partially me sharing this technique, and partially me learning how to use Instructables. If there are issues with my documentation of the technique or my use of Instructables, please let me know in the comments – thanks! I needed a long row of switches in a pinch, and didn’t have nearly enough switches
Using Copper Tape To Create A Digital Selection Pad using Arduino Read More »
In this instructable we will learn how to use 6 buttons to control the color of an RGB LED with the use of an Arduino Micro Controller. This is a fun and easy little project that should take you no more then 20 minutes to finish. Step 1: Connecting an RGB LED Before we connect
6 button RGB controller using Arduino Read More »
I made the original Instructible that this is based on over a year ago (You can see it here to see some of the theory around how this works:http://www.instructables.com/id/How-to-access-5-buttons-through-1-Arduino-input ). To make a long story short, I moved to a different country a few weeks after that and have not played with any electronics since.
Accessing 5 buttons through 1 Arduino pin Read More »
