wh1sp3r wrote:Reciever/transimmiter must not affected by others recievers/trasmmiters of course. If you have any ideas, just write it here, thank you very much
Hi wh1sp3r,
a very easy and also cheap ( transmitter/receiver module ~10,- EUR) solution is to use it with
433.92 Mhz modules, with a ready Library of "manchester coding" from mikroC. At this moment i have
a comparable project, have a look at my test construction:
based on AM modulation, it should be transmit "temperature" from some
stations to a host in 1 minutes period. Every measuring station runs with
an simple accumulator (9v block) for transmitter and MCU-system with
a DS-1820 digital temp. sensor.
The consumption of all parts from the measuring station is less than 30mA.
Every measuring station will send the following "data block" every 1 minute:
- controll byte (start 0xaa, 1 byte)
- station number (1 byte)
- digital temperature (1 byte)
- chksum (1 byte)
Cover address of the transceiver/receiver module set: Conrad Electronic 130428 (attention advertising!
)
More suggestions?
