David A. Mellis writes:
For a little over a year, I’ve been working on an open-source, DIY cellphone as part of my PhD research at the MIT Media Lab. The current version of the phone is based on the Arduino GSM shield and Arduino GSM library. It sports a deliberately low-resolution screen (8 characters, each a 5×7 matrix of LEDs), a laser-cut wooden enclosure, flexure (living hinge) buttons, and a ~1000-line Arduino program that powers the user interface. The phone can make and receive phone calls and text messages, includes a phone book and caller id, and keeps the time. Everything you’d expect from a 20-year old Nokia! (Except snake.) I’ve been using various iterations of the project as my primary cellphone for the past six months or so.
Open-source, do-it-yourself cellphone (built with Arduino) - [Link]
How to capture and reverse engineer an infrared IR code and use an Arduino or other microcontroller to replay the command. Oscilloscope and logic analyser capture, coding, troubleshooting, tounge angle, it’s all here.
In this instance Dave captures the NEC (Japanese) code from his Canon video camera remote control on the digital oscilloscope, figures out all the bits and encoding, and writes an Arduino library to replay the code back, and verifies it with his Saleae Logic logic analyser.
EEVblog #506 – IR Remote Control Arduino Protocol Tutorial - [Link]
AntzyP @ instructables.com writes:
Cap’n ArrDrownHo! is the lovechild of Ardweeny and Boarduino and he’s here to commandeer your AVR ships. ArrDrownHo! inherits pros of both and cons of neither. Pick up an AVR chip and start prototyping instantly on a breadboard! Want to replace that costly Arduino in your project with a cheap AVR, but don’t know how? Use the simple plug-and-play ArrDrownHo! piggybacked onto the AVR to act as interface for programming and provide power.
ArrDrownHo! – Easily convert AVR to Arduino - [Link]
Niek designed this BareDuino micro, that is available at github:
For some Arduino projects, you don’t actually need that many IO pins. That’s exactly the case when I tried to build a simple RGB throwie that would cycle through colours. I was looking for a cheaper alternative to the Arduino UNO’s ATmega328P when I stumbled across this post by MIT’s High-Low Tech lab. They developed a library for programming the 8-pins ATtiny45/85 from the Arduino IDE. It’s a very smart solution to use permanently in some low pin-usage projects, but you still need to hook up individual wires from your programmer to the ATtiny to be able to program it. That’s when I came up with the idea of the BareDuino Micro.
BareDuino micro - [Link]
The Arduino OBDCAN Shield connects Arduino board to CAN OBD-II compliant car, light truck, or motorcycle.
- ISO15765-4 (CAN) protocol
- Arduino R3 form factor
- Stacking headers for expansion and connection to LCD
- Joystick control for menu navigation
- Provides operating voltage for the Arduino board from OBD connector
- Serial port operating voltage either 3.3V or 5V, driven by IOREF pin
- Standard DB-9 subconnector for use with OBD-II cable.
OBDCAN Shield for Arduino - [Link]
Learn how to load Arduino bootloader on a ATMEGA328 IC using ISP programmer and Arduino board. randofo @ instructables.com writes:
Bootloading an Arduino with a ZIF socket allows you to easily program a lot of chips at once without worrying about mangling the pins. The reason for this is that ZIF stands for “zero insertion force,” and as the name implies, ZIF sockets don’t require any force to take the chip in or out. This means that you do not have to worry about any of the pins bending when you take the chip in and out of the socket. This is particularly useful if you need to bootload a lot of Arduino chips at once for inclusion in an electronics kit or if you need to repeatedly program a chip and transfer it back and forth between a separate circuit board.
Bootload an Arduino with a ZIF Socket - [Link]
A great introductory tutorial about Arduino. randofo @ instructables.com writes:
An Arduino is an open-source microcontroller development board. In plain English, you can use the Arduino to read sensors and control things like motors and lights. This allows you to upload programs to this board which can then interact with things in the real world. With this, you can make devices which respond and react to the world at large.
For instance, you can read a humidity sensor connected to a potted plant and turn on an automatic watering system if it gets too dry. Or, you can make a stand-alone chat server which is plugged into your internet router. Or, you can have it tweet every time your cat passes through a pet door. Or, you can have it start a pot of coffee when your alarm goes off in the morning.
Intro to Arduino - [Link]
randofo @ instructables.com writes:
When I was a kid my father had a panic button under his desk that was wired to call 911. While I thought this was pretty cool at the time, it later occurred to me that he had this because the neighborhood that his business was located in was a bit rough, and — perhaps — we were in perpetual danger. Nonetheless, I always thought the idea of having a panic button was pretty darn neat. Perhaps this notion stuck with me for so long of a time because I was never allowed to press it as a kid. It was ‘off limits,’ and thus a very appealing idea.
Now that I am an adult and have a desk of my own, I resolved that I too needed a panic button. However, I feel like one that calls 911 has limited use in my line of work, and my opportunity for panic was probably less severe. So, I decided that I needed to tone it down a bit. The under desk panic button that I have created dials my own phone when it’s pressed.
Desk Panic Button - [Link]
alstroemeria @ instructables.com writes:
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 feel the same and use this as a guide to be one-step closer to having one of your own
Digital/Analog Clock – Arduino + PaperCraft - [Link]