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August 3, 2011 at 1:14 pm in reply to: How to interface 4bit mode LCD to 8051 Micro controller #6568romel emperadoParticipantromel emperadoParticipant
very good example of interfacing RTC: check this link and it has already the code
code:
romel emperadoParticipantsince you adc is powered with 5vdc then it is impossible to input more than 5v voltage to your adc..
if you want to input bigger voltage than in your Vref then you can use voltage devider for that..
check this tutorial and working code of adc0804:
and also check this voltage devider calculator:
romel emperadoParticipantread through with the tutorial here and it has a very good example code
romel emperadoParticipantyou can also try the i2c the two wire interface eeprom if you want..
here are some tutorials:
romel emperadoParticipantIm using EAgle cad software ..
July 13, 2011 at 1:12 am in reply to: how to start timer in 89C51 by programing and stop by external hardware #6450romel emperadoParticipantthere are many projects here using timers… go and search for that and also read this
July 9, 2011 at 6:16 am in reply to: How to interface a 3G-GSM module with a Camera.Should I use AVR or 8051 for this.? #6445romel emperadoParticipantif you want to send video frame in real time you must use High speed controller for that… dont use the old 8051..
July 9, 2011 at 6:14 am in reply to: How to interface a 3G-GSM module with a Camera.Should I use AVR or 8051 for this.? #6444romel emperadoParticipantin GSM interfacing you need to know the At commands of your device..
you can use AVR/PIC or 8051.. in GSM interfacing use UART/USART for interfacing and if you already receive the data from your modem you can transmit it to your PC via UART..
in camera interfacing , use Camera that has SPI support for easy interfacing..
romel emperadoParticipanttry it.. read how adc0808 works download its datasheet…
you can directly read the 8bit output pins of adc with parallel port
romel emperadoParticipantnot needed..
go with the PIC.. if you learn to program PIC then learning 8051 is so much easy..
romel emperadoParticipantdid you edit your question above?? hmm
TMOD, — this is timer mode controll register
TCON, — timer control register
TH1, — MSB byt of timer
SCON — serial register…
search them all there are may article about this…
romel emperadoParticipantsearch LCD16x2 lcd in this forum there are a lot of example…
July 8, 2011 at 9:07 pm in reply to: how to build a mobile controlled automated home light system #6439romel emperadoParticipantuse gsm modem and controller… search about gsm modem..
romel emperadoParticipantthey are all correct.. Im telling you interfacing is about the connector.. you can still interface without using any connector you can solder everything as long as the connection is correct….
connection is just for standards and easyness.. so the answer of your connection is yes.. got through with the each pin of DB25 and study..
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