How to: Use Arduino to Generate Glitchy Audio VGA Visuals

Posted on 03 Apr 2009

Arduino to Generate Glitchy Audio VGA signal
The idea here is to connect the horizontal and vertical sync signals from the computerย�or laptop to the other monitors. However, the actual RGB data lines will be controlled by the Arduinoย�or ยตCย�and ADC.All that is happening with the software is that the Arduino or whatever is doing a digital data conversion and then setting an output digital pin port to the lower 8 bits of the 10 bit data.[more]

Posted in : Arduino projects | Audio and Video

89S52 Project Board

Posted on 18 Sep 2008

89S52 Project Board
This is a simple AT89S52 project board with In System Programmable Flash based microcontroller.It was designed for easy microcontroller project development. The board has two channel 12-bit ADC, 4-digit seven segment LED , text LCD connector, four tact switches, and the ISP loader connecter.[more]


Posted in : MCS-51 projects

24 bit Delta Sigma ADC with USB Interface

Posted on 25 Jun 2008

24 bit Delta Sigma ADC with USB Interface
This unit uses the LTC2400 Delta Sigma 24bit ADC chip connected to a Cypress Semiconductor CY7C6300 which is a low speed USB device.[more]

Posted in : USB projects

Interfacing Your Computer to an ADC via the Parallel Port

Posted on 19 May 2008

Interfacing Your Computer to an ADC via the Parallel Port
Interfacing an Analog-to-Digital Converter (ADC) with Linux via the parallel port is fairly simple. There two major areas that need to be addressed - hardware and software. The hardware consists of the parallel port, an ADC, and an analog signal source. The software programmed in ‘C’ language.[more]

Posted in : Computer projects | How to

PICADC- PIC based “intelligent” A/D converter

Posted on 09 Apr 2008

PIC based โ€œintelligentโ€ A/D converter
The PICADC is a simple 12-bit, 8-channel analog to digital converter (with 4 additional digital inputs), which may be connected to the PC through the serial interface (RS232).
The sequence of sampled channels, and sampling frequence are programmed by the PC.
The maximal sampling frequency is limited by the data transmission rate, and at 115200 baud is equal to ca. 3kHz for 1 channel without digital inputs, and to ca. 500 Hz for 8 channel with digital inputs.The analog input voltage range is -2.5V to 2.5V.The digital inputs may be used for recording additional digital signals, eg. the time code used to synchronize the recorded data with other events.The PICADC is based on PIC16F84 (or PIC16C84) microcontroller, and MAX190 (or MAX191) ADC.[more]

Posted in : Measurement projects | PIC projects | RS232 related

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