Caller id project

First of all talking about the circuit. I will give a brief description of the ICs used.
1. MT8870: A DTMF decoder IC, parallel o/p.
2. AT89C2051: 8051 Controller
3. LCD: For display
4. MCT 2E: Opto coupler to check the receiver is picked or not.

Now Software..
The code is really simple, at the top is ports definition. Defining the MT8870 interface as..

... Read Compelte post

Posted by ajay_bhargav on Wed Jul 25 2007, 01:29 PM

Conversation

Fri Jun 19 2020, 08:12 AM
anudee
sir could please send the code for I2C and wifi interfacing with 8051
scena
Thu May 28 2020, 12:14 AM
Does anyone have microcontroller programming software for STC15F104W (core 8051, 4 k, 128 byte, 6 I/O pin, UART ... DIL8), that works?
Sun May 10 2020, 09:23 PM
Tamu Gurung
Hi I am looking for a assembly language program for a digital decimal counter. Time counts max limit of 2 mins starting from 2.00 mins and ending at 0.00. time is to be displayed on 4 7-segment LED displays. Edsim51 simulator to be used. Thanks
Thu Apr 02 2020, 03:24 PM
Tajammul
Sir kindly send the code file i2c for 8051
ExperimenterUK
Sun Mar 22 2020, 12:21 AM
@ Rohitnani,ABEBE..which project ?

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