Kathy Yang writes, “We may often encounter such situation as bootloader falls off when using Arduino, this thing can freak us out especially when we got no bootloader tools on hand. So what shall we do? Here we’ll introduce a way on how to burn c via Arduino, which is rather practical in cases when without […]
Category Archives: Arduino
DirtyPCB Charliecube
kjetilei shared his Charliecube project, inspired by the instructions provided by SobiGuy at SobiSource: I showed the cube at my local makerspace and proposed a build day. The interest was high enough to bulk order the various items needed for 10 kits. Just before ordering the batch of protoboards I started to think about making […]
Simple wav player using Arduino
Kathy Yang of Elecfreaks writes: Integrated with the homemade low-pass filter, this Arduino-based simple WAV player is to send out PWM signal generated by UNO, then through the low-pass filter and make the PCM data stored in the flash of UNO into sounds. Basically, the player cannot be regarded as a pure WAV playback, because […]
Electromagnetic Field camp August 29-31, 2014
The 2014 Electromagnetic Field camp is set for August 29-31, 2014. This annual gathering will be held in Bletchley, UK, and feature a camping festival with a power grid and high-speed internet access; a temporary village of geeks, crafters, and technology enthusiasts that’s lit up by night, and buzzing with activity during the day. Previous […]
DIY stroboscope
ReturnZero published a stroboscope build: At its heart, a stroboscope is just a rectangular wave generator hooked up to a light source. I wanted a few extra features to make it nice to use: Ability to set flash rate by either frequency or RPM Set duty cycle of output without affecting flash rate LCD display […]
The Nanite 85
cpldcpu writes: Recently, Olimex anncounced the Olimexino 85s, claimed to be the “World’s smallest Arduino ever“. Now, that looks like a challenge. I guess it is about time to show off what has been on my desk since some time last year: The Nanite, pictured below. I designed this board for fun after the Digispark […]
SPI Transactions in Arduino
Paul over at DorkbotPDX writes: For the last several weeks, I’ve been working on SPI transactions for Arduino’s SPI library, to solve conflicts that sometimes occur between multiple SPI devices when using SPI from interrupts and/or different SPI settings. To explain, a picture is worth 1000 works. In this screenshot, loop() repetitively sends 2 bytes, where […]
Arduino GSM home automation system
Timofte Andrei wrote this instructable detailing the build of his Arduino home automation system: For this project I’ve used: 1. An Arduino clone 2. SIM900 GSM SHIELD 3. Relay module 4. 2×16 LCD Display 5. DS18B20 temperature sensor 6. Push button 7. Some Dupont wires 8. A led module (this is optional, if you have a chinese […]
DS3232 clock frequency calibration
Kerry Wong writes: DS3232 is an extremely accurate RTC with a guaranteed accuracy of 2.5 ppm (0 °C to 40 °C), which translates into an error of just 80 seconds over the course of a year under the worst case scenario. I had done a few projects using this chip before (you can read about […]
The Protoptimus open source CNC Machine
An open source Arduino-based CNC machine from Brazil. Jeferson, the Protoptimus founder, writes: It’s time for Brazil to show its strength in the maker movement” My name is Jeferson, the Protoptimus founder. I’m on a Catarse.me campaing, the largest Brazilian crowdfunding website, and I need your help. We yearn to be the first big manufacturer of low […]
blueShift – An OpenXC LED tachometer
In this video Pete Mills demonstrates his blueShift project, an OpenXC LED tachometer he is working on: An Arduino, some addressable LED’s, a bluetooth module, code and a 3D printer come together to make blueShift – An OpenXC LED Tachometer. blueShift is so named for the Bluetooth protocol used for data communication, and the use of […]
Attiny25/45/85 police light with Arduino
Another Instructables by Jan Henrik, a police light with a Attiny25/45/85. He writes: Hello, in this project I want to show you how to build a multi functional Police Light with a Attiny25/45/85 . It will have serval animations , which can be changed with a button on the circuit board, it has 2 channels, […]
Arduino based waveform generator
Hemal Chevli made this Arduino based waveform generator. He wrote a post on his blog detailing its assembly: Finally, after sitting in the TODO list for a long time, I’ve made a basic wavefrom generator based on arduino, made using this instructable as reference. I had an enclosure laying around which has incorrect dimensions for […]
DIY cardboard laser piano
Here’s a cool DIY cardboard laser piano by ElecFreaks: Hi Guys, today, ElecFreaks will show you a guide how to make a cardboard laser piano by yourself. By this way, I think you do not only could make piano , you can transform a table , a window or a wall to be a Laser Piano or a […]
Wireless controlled robotic hand
Gabry295 wrote this Instructable detailing the build of his wireless controlled robotic hand: It consists in an artificial hand controlled by a glove with flex sensors. The artificial hand reproduces the movements of the hand with the control glove. The hand and the glove works both with Arduino. Check out the video after the break.
Hack adds Bluetooth control to old iPod using Android and Arduino
The crew at Erroneous Data presents this tutorial detailing how to wirelessly control an old iPod music player with you Android device. Using only an Arduino, an HC-05 Bluetooth module and a few resistors they show how to build your very own MuseHack. The project includes the Arduino code as well as the Android app […]
ZaCon badge development log
ZaCon is a community driven infosec conference held at the Kingsway Campus of the University of Johannesburg, South Africa. Andrew Nohawk developed the ZaCon V badge using an Arduino and RF components. He provides a detailed chronicle of his design and development process in this post. He explains, “For ZaCon V I built some electronic […]
Program your Arduino with a Android device
Jan Henrik wrote this Instructables demonstrating how to program an Arduino with Android device: in this Instructable I want to show you, how you can program your Arduino with your Android device. It is very simple and cheap. Also it allows us to program our Arduino where ever we want, this is usefull for permanently […]
R2R Ladder DAC
JamesNorth writes: This post is about an R2R Ladder DAC that I build one evening. I wanted to play around with the Arduino Mega 2560 board I have and this seemed like a perfect way to try it out. Below is the schematic for the DAC… This is an 8-bit DAC built-up from just resistors, […]
Reflow oven controller with graphics TFT
A reflow oven controller with graphics TFT by 0xPIT: Arduino-based reflow oven controller with: PID loop control Wave Packet and Phase Fired control for AC outputs graphic TFT LC-Display, drawing the temperature curves – using an Adafruit 1.8″ TFT or derivate display solely controlled using a cheap rotary encoder and it’s single button stores up to […]