Hello everyone,
I am trying to build a circuit that will allow 2 PC's to communicate wirelessly to fulfill the requirements of a communication course. I am in my junior year of a BS program in Electronics and Communication. I intend to use the RS232-DB9 serial port. I need help in this regard.
My problem Definition is as follows:
1. PC A generates some data. (Text/ASCII chars) It is output through its serial port by using a C program.
2. This data then needs to be sent to an RF module that modulates the data bits using a modulation scheme (like FSK) and transmits it.
3. It is received by another RF module, which then hands over the data to PC B.
Here are a few questions I have:
1.We found it difficult to procure transcievers and their cost is prohibitive for the budget we have in mind. We have settled for using MICRFF102 and MICRF007 . We are using 2 sets of transmitters and receivers to attain full duplex ( at different frequencies as suggested by Nigel) . Does anyone know about the noise immunity and techniques for noise filtering regarding these IC's ?
2.How would one go about programming the microcontroller to detect the start and stop bits and subsequently transmit data to the computer ?
(* We are using the null modem mode and are using MX 232 line driver .too . )
- Nikhil
I am trying to build a circuit that will allow 2 PC's to communicate wirelessly to fulfill the requirements of a communication course. I am in my junior year of a BS program in Electronics and Communication. I intend to use the RS232-DB9 serial port. I need help in this regard.
My problem Definition is as follows:
1. PC A generates some data. (Text/ASCII chars) It is output through its serial port by using a C program.
2. This data then needs to be sent to an RF module that modulates the data bits using a modulation scheme (like FSK) and transmits it.
3. It is received by another RF module, which then hands over the data to PC B.
Here are a few questions I have:
1.We found it difficult to procure transcievers and their cost is prohibitive for the budget we have in mind. We have settled for using MICRFF102 and MICRF007 . We are using 2 sets of transmitters and receivers to attain full duplex ( at different frequencies as suggested by Nigel) . Does anyone know about the noise immunity and techniques for noise filtering regarding these IC's ?
2.How would one go about programming the microcontroller to detect the start and stop bits and subsequently transmit data to the computer ?
(* We are using the null modem mode and are using MX 232 line driver .too . )
- Nikhil