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

Thu Mar 04 2021, 04:57 PM
Ronaldwhits
https://coin2x.org
Thu Mar 04 2021, 11:22 AM
Austintic
https://ether2x.net
Thu Mar 04 2021, 10:43 AM
Bryanmkt
only
Thu Mar 04 2021, 05:09 AM
Ben Cantu
Buy our premium fake IDs with the best security elements.
Thu Mar 04 2021, 01:23 AM
Carlton
argumentative essay idea https://getessaypro.com - buy essay club review samples of essay example of outline for essay essay format transition phrases for essays

Downloads

Comments

Mirza123
Thu Jun 25 2020, 03:46 PM
eunicelove124
Mon Jun 22 2020, 03:03 PM
cerouno
Tue Jun 16 2020, 05:10 PM
Marce
Sat Jun 13 2020, 09:43 PM
Davidthils
Thu May 21 2020, 12:44 PM
Jakeror
Thu May 21 2020, 01:28 AM
motorCar
Wed May 20 2020, 07:05 PM
Vordrync
Wed May 20 2020, 11:52 AM

Online

Guests: 94, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 38215
Newest member: Mirza123