This tutorial describes how to interface ADC to based Mircocontroller. The article also provides a sample tested Technology is an online. In This project (AT89S52) Microcontroller is interfaced with ADC IC to show the output value of ADC on LCD Screen,for a given variable input voltage. Interfacing ADC with three LDR using microcontroller and LCD. The project includes circuit diagram and source code in C.

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This is an intermediate circuit, which finds lot of applications. This device has three channel address line namely: It has a total of eight analogue input channels, out of which any one can be selected using address lines A, B and C.

Create a free website or blog at WordPress. The program continuously reads the input of ADC on the port 805 and outputs the same value on the port P2. The decimal equivalent digital output value D for a given analogue input voltage Vin can jnterfacing calculated from the relationship. Get Our Weekly Newsletter! ALE Address latch enable, pin22 is given a low to high pulse to latch in the address. In this witg we have applied frequency by using microcontroller.

External clock pulses are to be given to the ADC; this can be given either from LM in Astable mode or the controller can also be used to give the pulses. Pin10 of the ADC is connected to pin8 P1. The external clock needed by the ADC is provided by the controller using interrupt.


A particular channel is selected by using the address decoder line. The port P0 is continuously scanned and the output of the ADC is transmitted via serial port.

To enable the Timer0 in interrupt enable mode, the register IE is loaded with the value 0x What is Web Browser. Interface SD Card with Arduino.

The input control signal SC, being active-low, initiates start of conversion at falling edge of the pulse, whereas the output signal EOC becomes high after completion of digitization. Choosing Battery for Robots.

The circuit is divided into three parts: Port P2 pins of controller is used to send the data to the LCD pins A 9 volt battery and a 5 volt voltage regulator namely are used for powering the circuit. You’ll find it identical to C because it is identical so if you are thinking to start working in C language then its a good time: You are commenting using your Twitter account.

A 16×2 LCD display is very basic module and is very commonly used in various devices and circuits. The controller uses a crystal of frequency And here we have used three potentiometers unterfacing at pin 26, 27, and 28 of ADC LCD Liquid Crystal Display screen is an electronic display module and find a wide range of applications. Virgin Galactic — Commercial Space Flight.


How to interface ADC0808 with 8051 microcontroller (AT89C51) using clock from D-flip flop

The conversion of data from analog to digital form is done using an ADC. For selecting all the other input channels, have a look on the given table:. The resistance is varied by In this circuit the controller sends the control and enabling signal to Interfacung. This requires hardware and necessary software, resulting in increased complexity and hence the total cost.

Choosing Motor For Robots. Its resolution is 8 so it can encode ibterfacing analog data into one of the levels 2 8.

Interfacing ADC with Microcontroller (AT89C51) using Interrupt clock

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Very passionate about Electronics and like to learn new stuff. You are commenting using your Facebook account.