We think that in honor of the DuinoStamp’s small size and big power, the post about it should also be small and powerful. About the size of 34-pin DIP, the DuinoStamp is a breakout board that fits in DIP sockets and is Arduino compatible. It features an ATmega 168-20PU chip, a 16MHz resonator, decoupling capacitors and more. It doesn’t come with the necessary 5V power supply or any kind of interface cable, but what do you expect for under $10?
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Arduino Environment On ATmega644
Our friend [Zach Hoeken] at NYC Resistor is porting the Arduino environment to an ATmega644 chip. This doesn’t really add new functionality to the ATmega644 as it is already fully programmable, but it does add a user-friendly and familiar environment to the ATmega, allowing users to build their Arduino-based projects with more powerful hardware. The ATmega is, after all, the biggest DIP package AVR makes, featuring 64k flash and 4k RAM (both four times as much as an Arduino) and 32 I/O pins, which is 12 more than an Arduino. The video is only proof of concept, so we will let you know when [Zach] releases more details.
[via NYC Resistor]
Tom’s RGB Mood Lamp
[Tom] has been refining a board that drives a high power RGB LED for applications like this moodlight. It’s based around an ATmega8 microcontroller. The goal was to make an RGB LED easy to work with: It can cycle between colors in standalone mode. You can control it via a serial interface. It also has a pin header to hooking up three potentiometers for manual color mixing. Boards aren’t available yet, but he’s already posted a build tutorial. The board looks straightforward enough that it shouldn’t be too hard to layout if you really want to.
Single Side Arduino-ish Beta Board
Via [ladyada], [Raijuu] combined some ideas from [Ladyada]’s boarduino and [evilmadscientists] Atmel business card created his own single sided (for easy etching) project board for ATMega8/128 projects. You can tell that the design is an expression of frustration from past projects; We can definitely appreciate features like separate power and multiple sockets on each pin. (We’d probably consider adding some soldering points to allow for permanent connections.)
Mega8 Logic Tester
[Ast] sent in his time sampling logic analyser (in German, so use the fish) based on a Atmel Mega8 and a FT232 USB interface and several logic chips. It can store time captures in memory, then upload them to a PC via USB. Looks like a great tool for advanced logic testing.
SickSack: ATMega Servo Snake Robot
[Lars] sent in this sweet snake robot that he and [Aske] built for the DTU Robocup. I’ve seen snake bots before, but I like the concept and the clean electronic design. They used a single AtMega32 controller to generate PWM signals for each of the eight servos, and used a very interesting DC-DC buck converter that’s capable of delivering 16 amps.
For the curious, the bot won the best design and effects award at the competition.
Atmega Oscope
[Jason] sent in a couple tips, and this diy oscilloscope caught my eye. This design uses the A/D sampler on the ATmega to generate the signal for presentation on a regular CRT television. The sample limit is less than 16khz. Not terribly impressive, but not too shabby either.
