i never use vb.net before..but if i use the software, is it possible to send command using zigbee (wireless) from PC to PIC..i've tried so many times using vb6 but the PIC seems like not receive the signal..the measured temperature can be displayed on the vb6 program but when i add the click button in vb6 to give command to PIC, my sensor doesn't do the measuring temperature..how to solve this problem?