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Remote Controlled (R/C) Airplane LED Flasher using ATTINY12 microcontroller

Downloads Download the AVRStudio assembly source for the program: T12astrobe081028A Download the AVRStudio assembly source for the include file: T12astrobe081028A.hex Find updates at www.projects.cappels.org Overview This was designed to flash a pair of LEDs to be mounted on the wing tips of a Parkzone Citabria R/C (remote control) airplane. The unmodified Parkzone Citabria only weights  20 grams (about 0.7 ...

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Broadband RF Field Strength Probe using Atmel AT90S1200A AVR controller

Download auto-zero assembly code This broadband probe has a small antenna (about a 15 cm length of insulated wire). Radio Frequency energy coupled to the antenna is detected and made available to drive millivolt level signals to the input of a DVM (Digital Volt Meter). Its battery powered for convenience with very low current drain and automatic shutdown for long battery life. I've used the circuit shown be ...

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Packet Radio using AVR microcontroller

Here is some experimental hardware and software to transmit and receive AX.25 packets. It is essentially a PIC-E clone designed around a Atmel AT90S2313 with a few extra bells and whistles. I had picked up a couple of MXCOM MX-614s at the TAPR display (I also joined TAPR) at the Dayton Hamvention, and I needed a project to try them out on. I had designed many projects around Microchips PIC series micros, bu ...

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AM radio transmission using AVR using Atmega324 microcontroller

When you think about building a radio transmitter circuit, the first thing that comes in mind is it requires too many analog components. But wait a minute, this guy demonstrates an AM transmission using a microcontroller. The interesting part is it uses a plant as an antenna for transmission. This project is based on Atmega324 microcontroller, internally clocked at 8 MHz, and it generates a modulated AM sig ...

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Portal “Still Alive” on using ATMega16 microcontrollers

Yet another Portal-related instructable , but Different ! This one shows you how to :   1)Build a very cheap device that plays an 8-bit version of Still Alive from Portal 2)On the same hardware , but with a different chip , play the "radio tune" Step: 1 Parts List As mentioned in the intro , the parts required for this project are really cheap. What do you need ? You need to know how to program AVR microcon ...

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Build your own Wifi radio using Microcontroller ATmega16

The internet hosts lots and lots of online radiostreams, most of them with a certain theme, ranging from old time classics to Tibetian riverdancing. I must admit that I love to listen to them while I'm building stuff, as I can choose the music I like without listening to the same cd's over and over again. The only problem is that I always needed to have a computer neaby to get an internet connection. So I l ...

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Transform a cheap RC Transmitter with Custom Firmware using ATMEGA64 Microcontroller

The Turnigy 9x is a cheap Chinese radio transmitter widely sold by hobby king and other retailers under a variety of names. This is a computerized radio transmitter and is already a great deal for the price ($53 currently) and pretty capable if you can figure out how to use the stock firmware. The microcontroller running the show is a common ATMEGA64 type and is not code protected, so several groups of dedi ...

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