attiny2313

A Superhet/Direct Conversion AM receiver for 181.818 kHz using Attiny2313

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Downloads Download the AVRStudio assembly source  vlflo13041105A.asm (html format) Download the AVRStudio Hex file vlflo13041105A.hex (html format) Photo of completed receiver. Its pocket sized, but not intended to be used that way because the antenna is a highly directional ferrite loopstick. Its only a matter of luck that there was room for all the components […]

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1750 Meter Lowfer Band amplitude modulated RF source using ATtiny2313 microcontroller

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This is a low power signal source I put together one evening to provide 187 KHz RF signals for an anticipated receiver investigation. Under Federal Communications Commission rules inside the United States, one is allowed to operate a transmitter without a license under certain conditions. Here, I have copied the relevant section of the most

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Frequency Meter with 100 MHz RF desktop channel using ATtiny2313 microcontroller

Frequency Meter with 100 MHz RF desktop channel using ATtiny2313 microcontroller

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This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter. Built and align this is the same manner as the 100 MHz RF desktop

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RS-232 to 100 MHz RF desktop channel adapter using ATtiny2313 microcontroller

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Downloads AVR Studio assembler source code 2jun2002version.asm AVR Studio hex file 232lin.hex This is an adapter that allows a terminal to communicate via a 100 MHz data channel with peripherals on the same desk top. Keystrokes from the terminal are are received through the RS-232 connection and sent through the 100 MHz RF data channel.

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Minimum Mass Wireless LCD Display using ATtiny2313 microcontroller

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A 2 line X 16 character LCD display that is battery operated and works without an external connection. The basic MinThe basic Minimum Mass Wireless Coupler technology is described and links to other projects on this site that use the Minimum Mass Wireless Coupler are located on the web page, Minimum Mass Wireless Coupler. Downloads

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A Low Power PLL FM Transmitter using LMX1601 and ATtiny2313 microcontroller

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An LMX1601 Phase locked loop, a discreet  FET VCO, and an AVR micro controller combine to make a stable, easy to use monophonic FM transmitter that includes a an audio activated switch that turns the transmitter on only when its being used. Notice: Before operating a radio transmitter, find out what kind of transmitter operation,

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Multifunction 330 MHz Remote Control With an ATTINY2313 Simulating the PT2264 Encoder

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This 330 MHz remote control sends timed sequences of control pulses to accomplish complicated tasks. You can probably tell that I used a lot of solder flux on this board. Lots of flux not only helps the solder wet to the copper, but it also greatly reduces solder bridges. You can probably tell that I

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Circuit and firmware to support Seiko-Epson G1216B1N000 dot graphics display using ATtiny2313

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A serial interface and bias supply for the Seiko-Epson G1216N000 using an AT90S2313 because there just aren’t enough applications examples for this display on the web. Download Assembler source code I was looking for an LCD display that I could use to display waveforms on the workbench. The selection criteria for the display module itself

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A Microcontroller Based Digital Lock-In Milliohmmeter using ATtiny2313 microcontroller

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A milliohmmeter is just the tool for checking trace resistance on a printed circuit board, tracking down shorted traces, and measuring the contact resistance of a switch or connector. Its the kind of tool that would come in real handy occasionally, but not often enough to justify shelling out hundreds of dollars. Wanting one anyway,

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RS-232 Freq. Meter/Pulse Generator Based on Atmel ATtiny2313 using microcontroller

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Simplicity in circuitry was the design direction. Zero mass (firmware only with no physical components) would the ultimate achievement. This instrument doesn’t have any front panel controls because the user interacts via an RS-232 terminal program at 9600 baud. I needed a frequency meter for my experiments in Nondu, Thailand, where I really don’t have

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