Kevin Rye writes: I’m in the very early stages of prototyping a nixie clock. I picked up some MJE340 power transistors to switch on some IN-3s. I can then use a digital pin on my Arduino to turn on the IN-3s through the transistor. I’ll then have myself a blinking colon for my nixie tube […]
Category Archives: Arduino
Brewmonitor: The Arduino-powered, cloud-based homebrewing controller
The Arduino and Cloud-based homebrewing controller by Martin Kennedy of TheBedroomLaboratory: It’s just a basic site, based on this Scotch.io tutorial, which is currently plotting the temperature in my sitting room. It’s got a PHP backend (Laravel framework with RESTful API), MySQL database and an AngularJS frontend with (n3-chart/d3 for the graph). In the house, I’ve whacked […]
Reverse engineering wireless pro studio lighting
Richard Webb just finished an article on reverse engineering the wireless protocol used to communicate with some pro studio lighting. His approach involves sniffing the SPI bus into the lighting controller’s RF module using the Open Bench Logic Sniffer to obtain preliminary addressing information, then used an nRF24L01+ module in receive mode to capture packets. […]
Vodka vending machine
Ben Armstrong made this cool Vodka vending machine project: Designed to dispense alcoholic beverages in night clubs this project was design and built by myself and another team mate. Arduino hardware was used to program the device which include a stepper motor, an infra red sensor, two solenoid valves, an LCD screen, buttons and a […]
DIY RFID card lock system
Shawn McCombs blogged about his DIY Arduino RFID card door lock system 100 cards build. Via Hacked Gadgets. Check out the video after the break.
On Arduino due PWM frequency
Kerry D. Wong writes: I just got myself a couple of Arduino Due boards. While they were released almost two years ago, I have not really got a chance to look at these until quite recently. Arduino Due is based on Atmel’s ATSAM3x8E 32-bit ARM Cortext-M3 processor. The processor core runs at 84 MHz, which […]
Measure RPM – DIY portable digital tachometer
Electro18 posted a tutorial on how to make a portable digital optical tachometer using an Arduino Uno, an instructable here: A tachometer is a device used to measure the RPM or Revolutions Per Minute of any rotating body. Tachometers can be contact based or non-contact ones. The non-contact or contact-less optical tachometers usually use laser or Infrared […]
Dot Matrix printer from a CD/DVD reader with Arduino
Robson Couto wrote this instructable detailing his Dot Matrix Printer made from parts of a CD reader, with Arduino and processing: Some time ago while going through the pages here in Instructables, something catch my attention, a printer made of a CD reader, and i was amazed. I thought: “This is incredible, I have to […]
Gamecube controller to N64 adapter
Scasagrande shared his Gamecube controller to N64 adapter in the project log forum: Today I bring to you my Gamecube controller to N64 adapter. Basically I was playing my N64 and was sad about how the analogue sticks are getting old and loose. So I did some research, found some Arduino code someone had already written, […]
Make your own dual programmer in AVRDUDE
Stephen Wylie tweeted, “Program two ATmegas w/an Arduino & AVRDUDE without re-cabling in between!” Those of you who have programmed an Arduino through the Arduino or AVR Studio IDE may have noticed the utility that is really doing the work: AVRDUDE (AVR Downloader/UploaDEr). This is a powerful program that can facilitate programming new sketches on […]
Realtime GPS+GPRS tracking of vehicles using Arduino
Javier from CookingHacks writes: We made a
Temperature controlled reflow oven build
Matt of SkyLabs has a nice build log about a temperature controlled reflow oven he built using an Arduino based PID controller and a standard toaster oven: We have successfully managed to build a temperature controlled reflow oven using an Arduino based PID controller and a standard toaster oven from Robert Dyas! This is a must […]
Using a USBASP v2.0 as a cheap ATmega8 Arduino platform
JohnLittle writes: I finally got round playing with my AVRASP v2.0 boards. The ones Sleepwalker3 mentioned. Thanks mate! I bought three USBASP v2.0 on ebay for under £1.50 each. They each came with a short cable (5×2 sockets at each end). However, they do not come with the JP2 header soldered on. Solder it or […]
Arduino ultrasonic range finder, with I²C lcd display
An Arduino rangefinder with an ultrasonic sensor and an I²C interface display by Jan Henrik. He wrote an instructables here: The maximum rated range is 500 cm, the range is measured 20 times per seccond. It is Displayed on a lcd screen which is 20×4 chars big, it has a custom start message, and it can […]
Building a Doduino
V-TechDesign published a Doduino build: This project was an exercise in building an Arduino like ATMEGA328P board from scratch using a 3×4 inch Veroboard. The main objective was to provide better build-in I/O capability out of the box, so most projects will not need an I/O shield to perform common tasks. This makes the whole setup […]
Use sublime text 2 to replace Arduino IDE
Kathy Yang over at Elecfreaks writes: We could often feel frustrated when programming using the Arduino IDE. Why? Not because of how many errors we encounter in the program, but it is so difficult to find out the errors in source code, which is really something freaking out. For example Arduino IDE does not seem […]
Native assembler programming on Arduino
Eagle over at at cypherpunk.at posted details on programming an Arduino in assembly language. This article is about programming an Arduino board natively in pure Assembler without carrying the rucksack of standard libraries and functions. Using a simple example and an Arduino Uno board, I will show how to assemble, link, and upload your code […]
First impression on HLK-RM04 serial-to-wifi module
Ray Wang wrote a blog post review of the Hi-Link HLK-RM04 Serial-to-WiFi module: It’s a pretty easy-to-use and low-cost solution to add WiFi capability to Arduino or similar microcontroller boards. Basically it allows you to receive/send Ethernet buffers through serial RX/TX pins. Programming wise, it’s similar to using the standard Arduino Ethernet shield. The module can […]
Tiny ATtiny Node
Tiny ATtiny Node with temperature sensor project at Arduino Praxis: Tiny sensor board with ATtiny84 and RFM12B Transceiver. The size of the PCB is 25 x 30mm, sightly larger than a canadian quarter coin.
BridgeDuino: A wireless Arduino HUB and shield
TechBitar shared his latest project the BridgeDuino with boards from DirtyPCBs: BridgeDuino is a Swiss army knife PCB for rapid networking of inexpensive wireless communication modules. Breadboards are super for one-off experiments. But after prototyping half a dozen wireless prototypes involving more than just two Arduinos, the wiring mistakes and associated debugging grew more time consuming. […]