Serially the way out

In order to transmit the data from BeagleBoard to Mbed microcontroller to actuate the vibration motors we need to transmit data serially. Hence we successfully tested serially full duplex communication from Linux (x86 processor) to other PC terminal. Next target is running the Kinect and OpenNi on Ubuntu (we have already succesfully checked the same on Windows7).

Down to the basics

Next, we succesfully tested serial transmission and reception from mbed(through 9th & 10th serial port pins). 

For testing data transmission, we made use of ebox (as we didn't had PC) that was already available with us. To convert the voltages( ttl to RS-232), we had to make use of MAX 232. The circuit looked as follows:

It must be noted that the PCB shown in the diagram on the right is used only for the usage of MAX232 IC in that circuit(since we didn't have spare IC).