I have made animal detector. But when detection happen at that time i want to send bit to serially connected 8051

I have made animal detector. But when detection happens at that time i want to send bit to serially connected 8051. Because i want to control RELAY switch and LED's which are connects with 8051.

So what are the codes for it ?? help me out please.

thank you.

Answer 1

[Walter Roberson]

If you are attempting to use a serial port to do this, then it is not possible. The 8051 serial port is not able to accept a single bit at a time. Serial ports transmit multiple bits in a group, with the group proceeded with a "start bit" and the group is followed by a "stop bit". Typically you cannot send less than 7 data bits at a time.

Did you solve your problem with COM2 not being available?

[Hetu Patel]

Actually i have no idea about which micro-controller i should have to use. so I have not trying yet. Please refer me that which controller can I use for my application(external alarm,relay,LED switching) ?? In real i want to start some LED's and ALARM when my detector detects any animal in it. SO please help me and prefer Codes. waiting for your answer. thank you

[Walter Roberson]

The easiest way would be to send a character instead of a bit. The code you posted in the newsgroup looked pretty close, but you need to solve the problem about COM2 not being available.