RohanDey
Member level 2
Hi,
I have been trying to interface a 433 MHz RF Tx Rx using UART of 8051 IC. But unfortunately I get only junk characters on the hyper-terminal.
The Tx module is **broken link removed** and the Rx module which I am using is **broken link removed**
The schematic of the Tx and Rx part is attached. I have been following this link http://www.codeproject.com/Articles/55864/Remote-control-based-on-c8051-with-433MHz-radio-mo for the schematic.
In the Rx side I have used a NPN transistor. This is because, if I directly connect the Data pin from the Rx module to the RXD pin of my MCU, then I don't see anything on the scope, where as if I use the NPN I can see the exact same bits as rom the Tx side inverted. As per my observation, the communication part is ok, only thing is I cannot get the data into my MCU from the Rx module using UART.
Can anyone please tell me what might be wrong here.
Thanks..
I have been trying to interface a 433 MHz RF Tx Rx using UART of 8051 IC. But unfortunately I get only junk characters on the hyper-terminal.
The Tx module is **broken link removed** and the Rx module which I am using is **broken link removed**
The schematic of the Tx and Rx part is attached. I have been following this link http://www.codeproject.com/Articles/55864/Remote-control-based-on-c8051-with-433MHz-radio-mo for the schematic.
In the Rx side I have used a NPN transistor. This is because, if I directly connect the Data pin from the Rx module to the RXD pin of my MCU, then I don't see anything on the scope, where as if I use the NPN I can see the exact same bits as rom the Tx side inverted. As per my observation, the communication part is ok, only thing is I cannot get the data into my MCU from the Rx module using UART.
Can anyone please tell me what might be wrong here.
Thanks..