Dimdim has designed and built his own stepped ladder attenuator, controlled by an Arduino: A few years ago I had an encounter with a ladder volume attenuator. I loved hearing the relays clicking away as they dialed-in the desired attenuation. Ever since then I wanted to design and build one for myself. The years passed, with […]
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arduino
Arduino RFID login
Luke has published a new build: I wanted a simple way of quickly logging on to my computer without having to typing my password in and did not want to have no security either. There are various products on the market that would solve this problem from fingerprint readers to proximity dongles but i decided […]
Get ready for MPLAB Express, throw away your Arduino
Chas from iradan.com writes: I credit the maker movement with bringing electronics back from the crusty old and lonely electronics hobby back into the main stream. The Arduino is the micro of choice for this army of makers and I conceded it made sense… you install the IDE, plugged in your board into the USB port […]
Arduino Shield for custom board CPLD programming and testing using pogo pins
Marcelo Jimenez wrote a post about a shield he did using pogo pins to program and test a CPLD based board. The photo above shows the support for the board to be programmed with the pogo pins at the center, the board itself and the top shield. I have used two identical shield boards and have […]
mavroOBD, an open source Arduino compatible OBD/Can-Bus module
Mavromatics’ open source project designed to “hack” your vehicle, that is available on github: The goal of this project it to create an Arduino based OBD port module that can be used to enhance a vehicles capabilites. For example, if you want door locks to close when moving faster than 5mph or to invoke/emulate certain […]
Arduino MPPT solar charger shield
Lukas Fässler made an MPPT solar charger project and wrote a post on his blog detailing its assembly: The basic idea behind an MPPT solar charger is simple. A solar panel has a certain voltage (in the region of 17 to 18 volts for a 12 volts pannel, somwhat dependent on temperature) at which it […]
Simple Arduino SD-Card GPS/NMEA Datalogger
KF5OBS writes: This article is going to show how to build a minimalistic GPS datalogger. The GPS logger is based on the Arduino platform and stores raw NMEA sentences from pretty much any GPS module to a SD card. More details at KF5OBS blog.
Arduino Zero using a xQFP80 +50 Protoboard
Tom Keddie shared his Zero project using a xQFP80 +50 Protoboard: I need more processing power than an AVR for an upcoming project so I ordered an Arduino Zero to take a look at the SAMD ARM processors. Unfortunately my son coveted the box it came in, once the two were separated the Zero was […]
Control your Arduino over the Internet using Blynk
John Boxall from Tronixstuff has written an article on using Blynk with Arduino: There are many ways of remotely-controlling your Arduino or compatible hardware over the Internet. Some are more complex than others, which can be a good thing or a bad thing depending on your level of expertise. Lately we’ve become more interested in this topic […]
Arduino Mini CNC Plotter Machine from DVD drives
An instructables on how to make an Arduino based mini CNC plotter from old DVD drives by Ardumotive_com: For the X and Y axes we will use two stepper motors and rails from dvd/cd drives and for the Z axis we will use a small servo motor that moves the pen up and down. For the mounting […]
Dobot: Robotic Arm for everyone, Arduino & Open Source
Here’s an interesting open source project on Kickstarter the magical robotic arm, Dobot: Designed for DESKTOP. Arduino-powered, 4-axis parallel-mechanism robot arm with High Quality. For makers, educators, and everyone! We are six engineers who built a 4-axis high accuracy, high repeat precision, stepper motor, Arduino-based, desktop robotic arm called Dobot. You can visit his Kickstart page […]
ArTICL: Arduino and MSP432 Launchpad to TI graphing calculator linking
KermMartian over at Cemetech forum writes: A few weeks ago, I received a pair of MSP432 Launchpad development boards courtesy of Texas Instruments, and two weeks ago, I began porting ArTICL to the MSP432. I’m happy to announce that ArTICL is now available to MSP432 Launchpad programs. First developed last year as an upgrade to my […]
DIY PWM to PPM converter for 2.4GHz receiver using Arduino
A DIY PWM to PPM converter using an Arduino Pro Mini from Al Prettybong. Oscar wrote a post on his blog detailing how Al made it: For radio receiver, there are a few output signal formats. The traditional and also most common type of RX signal is the PWM and basically PWM requires 1 cable […]
Simple Infrared PWM on Arduino, Part 3 – Hex IR Signals
The crew from AnalysIR has written up an article on Simple Infrared PWM on Arduino. This third part of a series will show you how to send Infrared signal using the Hex representation: In Part 1 of this series, we demonstrated how to send signals using soft or Simple Infrared PWM on Arduino. In our […]
Mesa-Video: 800×600 digital video for Arduinos over 2-wire serial Mesa-Bus
kevinhub88 writes: This post describes Mesa-Video, a low cost, low power, small size and fully Open Source Hardware and Software solution for providing 800×600 digital video for Arduino ( and other ) microcontrollers. Mesa-Video makes it quick and easy to display text and 24bit color graphics from any MCU using a single UART serial port […]
A JTAG/XSVF library for Arduino
Marcelo published a post on his blog about JTAG and the library he wrote. I have recently felt the need to incorporate a JTAG port in a project to program a hardware that contained a CPLD. The idea was to both program it and perform some integrity tests on the board. I imagined something using […]
Arduino dust sensor
Shadowandy’s Arduino-based Dust Sensor project: Put together a dust sensor using Arduino Mega 2560, Shinyei PPD42NS dust sensor and LCD shield. The codes and wiring instructions for Arduino Mega 2560 and Shinyei PPD42NS is as follow. However, I did include Serial output so you can view the sampling results using Arduino IDE’s Serial Monitor (9600 […]
Arduino-based “Analog” slow cooker controller
Dan Ternes blogged about his Arduino-based controller for analog slow cookers: With the AC power control figured out, I considered the User Interface. I opted for something simple. The Adafruit RGB LCD Shield would work well as it had both a display and buttons built in. Sure, I could have beat this project about the […]
ESP8266 Arduino NetIO Server demo
Peter Scargill writes: This week as regular readers know I was far away from our little home in Spain – in fact I was at MIT (Massachusetts Institute of Technology) in Boston, helping promote ESP8266 technology (why? because I could). Along the way I met up with Ivan Grokhotkov who as some of you know […]
Irrighino, a complete watering system based on Arduino Yun
Here’s Luca Dentella’s new project Irrighino, a complete watering system based on Arduino Yun. It features a user friendly AJAX interface and a fully-customizable open source firmware. The main features are: -a configurable number of solenoid valves -an AJAX web interface -a weekly schedule -manual activation / deactivation An Arduino Yun – the “brain” of […]