Category Archives: Arduino

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 […]

Building a constant current/constant power electronic load

Kerry Wong built a DIY constant current/constant power electronic load.  It can sink more than 200W of power: A while back I built a simple constant current electronic load using an aluminum HDD cooler case as the heatsink. While it was sufficient for a few amps’ load under low voltages, it could not handle load much higher than a […]

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 […]

Build an Arduino shield for Quadcopter – Arduino adapter

Oscar  built  his own Arduino shield for Quadcopter: I have been searching for ideas of making a Quadcopter Arduino flight controller Adapter to sit my Arduino nano board and the GY80, also have some header pins for motors and receiver to make the cabling tidy. There are a lot of Arduino shields people have designed for […]

Arduino teams with Intel to produce Galileo

Massimo Banzi has announced the latest release in the Arduino line: the Galileo. Galileo is a microcontroller board based on the Intel Quark SoC X1000 Application Processor, a 32-bit Intel Pentium-class system on a chip (datasheet — 920 page PDF.) It’s the first board based on Intel® architecture designed to be hardware and software pin-compatible […]

An isolated DAC using PWM output

Kerry Wong writes: Arduino‘s (ATmega328P) PWM outputs via analogWrite can be conveniently turned into analog voltage levels through the use of simple RC filters. Since the PWM outputs are not isolated, using them to drive other devices directly could be potentially dangerous. This is especially true if the target circuit uses a higher supply voltage. […]

mbedR3uino: mbed adapter for Arduino shields

Dave VW shared his project mbedR3uino in the forum: The mbedR3uino is a vertical shield adapter for the mbed prototyping platform. It provides compatibility with standard Arduino shields including the pins added to Arduino Uno R3 to make shields more independent between main boards. SPI, UART, I2C, Analog, Digital, and PWM pins are wired to appropriate […]

Arduino-controlled RGB LED infinity mirror

Ben Finio wrote this Instructable detailing his RGB LED Infinity Mirror: It’s an RGB LED infinity mirror that lets you toggle between an adjustable-speed color-fade mode and a direct-control mode where you individually set the red, green, and blue LED brightness levels. The primary inspiration for this particular project comes from this infinity mirror Instructable and Adafruit’s […]

Codebender web-based Arduino coding tool

Codebender is a web-based programming tool for Arduino. ” Traditionally, you would need to install an IDE, which includes all the necessary software, find and install the correct drivers, set permissions, etc. It can take 10-60 minutes. Or it can be a total mess. With Codebender, you can program your Arduino straight from your browser. […]

One Time Password (OTP) doorlock

Luca Dentella has just published his latest project, an Arduino-based door lock you can open using time-based OTP codes (compliant to the RFC 6238). “The simplest way to generate those codes is the use of Google Authenticator, a free mobile app. I’ve also prepared a simple webpage you can use to configure (scanning a QRCode) […]

Arduino announces new Arduino Yun board

The Arduino crew has announced the Arduino Yun. This latest addition to the Arduino family is a “combination of a classic Arduino Leonardo (based on the Atmega32U4 processor) with a Wifi system-on-a-chip running Linino (a MIPS GNU/Linux based on OpenWRT). We embedded the Linux machine directly on the PCB of the Arduino Leonardo and we […]

Monitoring room temperature using Arduino

Dobrica wrote a post on his blog detailing the build of his simple temperature monitor using Arduino Nano: For a last few months, I have been playing around with Arduino and collecting useful parts for my first real project. Last week we purchased Mitsubishi air condition with super-invertor and I wasn’t totally happy with the way it operated so […]