Oscar built a DIY bike rear light to keep him safe and wrote a post on his blog detailing it’s assembly: In this project I will be using a microcontroller to allow for switching between the various functions I programmed. The entire system is built on the backbone of an ATtiny4313 chip with a few other parts totalling at about $35. […]
Tag Archives: Arduino
Diode temperature sensor calibration using Arduino and SHT15 module
Paulo writes: A simple diode or the output of a transistor bias circuit can be used as a rough temperature sensor. For this purpose, a calibration procedure using a precise temperature sensor is recommended. This article shows how to calibrate such a temperature sensing circuit using an Arduino and the SHT15 Sensirion temperature/humidity sensor module.
Arduino MIDI with the Bus Pirate
@indigoid tweeted, “Finally got the Arduino MIDI IN working. <3 my Bus Pirate, best $30 ever. Happy!” Get your own handy Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors.
JTAG adapter for Arduino Micro
Baoshi writes: For the holiday season I get myself an AVR JTAGICE3. Holding the new shiny emulator and a bunch of Arduino boards, what shall I do? Of course to hop onto the all-hail Atmel Studio and ditch the toy-alike Arduino software. Reason being? Debugging Arduino code with serial console is no fun. I need […]
Temperature Shield for Bare Bones Arduino v3, Part I
Kevin Rye writes: With version 3 of my Bare Bones Arduino boards off being fabbed, as well as the laser-cut acrylic, it was time to go ahead a design my first shield. I have a ton of 7-segment displays that I’ve sourced over the years from various tear-downs of stuff from the garbage. I’ve been […]
Another holiday break project: AndyBrd
One more holiday project by Mats, the AndyBrd – An Arduino Leonardo combined with a MAX3421-based Android ADK (Accessory Development kit).
Open guitar pedal
The pedalSHIELD Arduino guitar pedal by Electrosmash: The shield has three parts: The Input Stage or Preamp: Amplifies the guitar input signal and sends it to the Arduino microcontroller to be processed. Arduino Board: It does all the Digital Signal Processing (DSP) modifying the signal and adding the effect (delay, echo, distortion, volume…). The Output Stage: […]
Arduino and SIM900 GSM Modules tutorial
John Boxall over at Tronixstuff has a series of Arduino tutorials. This chapter fifty-five of a series will show you how to use the SIM900 GSM modules with Arduino: The goal of this tutorial is to illustrate various methods of interaction between an Arduino Uno (or compatible) and the GSM cellular network using a SIM900 GSM […]
Laser pointer controlled with a PC mouse
Chirag Nagpal writes: I have created a laser pointer cotrolled through a PC mouse using an arduino and two servo motors. For getting the position of the mouse on the screen I’m running a small python script on the PC that uses the xlib library to get the current position of the mouse . This […]
Building a self balancing bot
Bajdi documented his Arduino self balancing bot build: For the electronics I used one of my own PCB creations, a Bajduino of course It’s just a small (50x50mm) break out board for an ATmega328. I’m running the ATmega @ 16MHz and 3.3V. It’s out of spec according to the datasheet but it works… I also needed an IMU […]
Mini button breakout board
Kevin Rye writes: I came up with the idea that it would be cool to have a little button breakout board that I could quickly pop on to my breadboard when I suddenly found myself in need of some buttons. Instead of scrounging for buttons and resistors and taking up a whole ton of space, […]
Working with the Bus Pirate Arduino Shield
Andrew Rohne writes: The Bus Pirate Arduino shield is a discontinued item from Dangerous Prototypes. I picked up the PCB via a free PCB coupon a while back, built it a few months later, and then finally decided to use it because I think I have something to use it with. Note the key word – […]
Inside an inexpensive Air Hogs RC helicopter
Inside an inexpensive Air Hogs RC helicopter: There are a ton of these tiny RC Helicopters around, lots of them use IR light to send signals from the remote to the RC Helicopter. Arduino versus Evil took one apart to see what makes it tick. The helicopter doesn’t have much payload capability but it seems […]
Arduino and PCF8563 real time clock IC
John Boxall over at Tronixstuff has a series of Arduino tutorials. This chapter fifty-four of a series will show you how to use the NXP PCF8563 real-time clock IC with Arduino: Recently a few people have been asking about the PCF8563 real-time clock IC from NXP – so this is a tutorial on how to use […]
Arduino stepper motor driver tutorial
Here’s a tutorial from VK1od.net : Arduino stepper motor driver with the Logic Shrimp logic analyzer This tutorial shows how to explore an inexpensive stepper motor and driver board using an Arduino and included stepper library. The stepper motor and driver board can be purchased on eBay at very low cost, and is an ideal educational project for the […]
Interfacing TLV5620 With Arduino
Kerry Wong posted an article on interfacing the TLV5620 with an Arduino: TI’s TLV5620 is a budget 4-channel 8-bit DAC. While it is designed primarily for running with a power supply between 3V and 3.6V, it can be powered by 5V as well given its wide supply voltage range. With a TL431 voltage reference (2.5V), the DAC output can cover […]
Web enabled switch using an Arduino
einball built a switch that turns the heater on to make the room comfy using an Arduino: As the walls are quite thick, it takes a while for the electric heater to heat the room. Afters about an hour the temperature reach comfortable levels. The solution was to built some kind of switch that turns the […]
The Arduino as a simple JTAG adapter
pesco blogged about his free XC95144XL CPLD breakout board PCB build: A good while ago I won one of the free PCBs regularly given away by DIY hardware shop Dangerous Prototypes. My board of choice was a CPLD breakout board, for the Xilinx XC9572XL. CPLDs are the smaller brother of FPGAs: programmable logic chips that can be […]
Open source DIY cellphone
Here is a DIY cellphone based on the Arduino platform and the GSM shield. It features basic functionality of a cellphone including making calls, sending SMS, storing phone numbers and displaying the current time. The DIY Cellphone is a working (albeit basic) cellphone that you can make yourself. It can make and receive phone calls […]
Digital/Analog clock – Arduino + PaperCraft
alstroemeria wrote this Instructable detailing the build of his Digital/Analog clock: In this instructable we will be recreating a clock inspired by Alvin Aronson’s original design. When I first saw this clock I was very impressed by how clean an elegant the design was I immediately wanted to recreate this effect. I hope some of you […]