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sir
iam using SPO2 sensor with at89s51 microcontroller. i think i will go for ADC also.
but i dont know the pin details of sensor, i mean where to give VCC and ground. what is the supply voltage and which one is the data line.
for sensor details please follow the link...
dear friend,
i am using MCP2515. i am little confuse. In MCP2515 PDF
register name is
TXBnDLC and the address of same register is 35H,45H,55h, then which one is the address.
i am using 1amp 12v adapter then 7805 for 5v.
pls gothrough the ckt diagram, thank you.
https://obrazki.elektroda.pl/2618792200_1351517559.jpg
<a title="adf.JPG" href="http://obrazki.elektroda.pl/2618792200_1351517559.jpg"><img src="http://obrazki.elektroda.pl/2618792200_1351517559_thumb.jpg"...
do one thing 2 nd pin of DB9 connector ( Modem) should be connect to 3 pin of DB9 connector of (8051) and 3rd pin of DB9 (modem) connect to 2nd pin of DB9 (8051). and 5 pin of both DB9 should be connect. then it will work
Hi i am using R30x module. it is a finger print module, communication is RS 232. how to start the programming, please guide me..
first i am trying to interface finger print module R30x with 8051. first i am trying to interface with PC.
but it is not showing any thing on my hyper terminal. even...
thank you friend,
my MAX 232 circuit is correct, same circuit is working with 8051 microcontroller and GSM modem. but it is not working with fingerprint module(R30x). it is not showing anything on my PC hyper terminal. i had cheched with a new module but still it is not working. thank you.
i am trying to interface fingerprint module R30x with 8051. first i am trying to interface with PC.
but it is not showing any thing on my hyper terminal. even i can not write any thing on my hyper terminal (after connecting fingerprint module R30x).
i have tested on 9600-115200 bps)
i am...
friend,
i am trying to interface fingerprint module R30x with 8051. first i am trying to interface with PC.
but it is not showing any thing on my hyper terminal. even i can not write any thing on my hyper terminal (after connecting fingerprint module R30x).
i have tested on 9600-115200 bps)
i...
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