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Published on Feb 27, 2010
This is a simple demo for Analog to Digital Converter. Here I am using National Semiconductor ADC0804, which is a very common 8-bit A/D Converter, compatible with any 8-bit Microprocessor or Microcontroller. In this project I am using a CDS Photocell as an Analog Sensor which is the primary input for the ADC. Based on the input voltage on Pin 6, ADC converts it to digital signal which is an 8-Bit data between 0 and 255. This 8-bit data is then passed through these 8-lines and captured by the USBMicro Interfacing Device, which is plugged into my laptop. This USBMicro is very useful for I/O interfacing through the USB port.