Talking Voltmeter

 

Talking Voltmeter
Talking Voltmeter takes a voltage measurement in the range 0-5 Volts and then reads it out to you to two decimal places (i.e. to 10mV resolution). The design illustrates the use of the 10 bit ADC in the PIC, as well as pulse width modulation (PWM) for analogue output. This project also illustrates how to squeeze every last word of program memory out of a PIC Sound samples consume almost all of the on-chip flash memory, and even that was after some pretty brutal trimming of the samples and a drop in resolution to seven bits. [more]

Posted in : Measurement projects | PIC projects

How to: Use Arduino to Generate Glitchy Audio VGA Visuals

 

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

 

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

 

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

 

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

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