Datasheet

communication protocols for computer
controlling instrument
Identify code Command
word
Function
uchar uchar uchar
0xaa0xbb 0x01 Connect the instrument, request to send data
0xaa0xbb 0x02 Dis-connect the instrument, prohibits receiving data
0xaa0xbb 0x03 Save/Delect button
0xaa0xbb 0x04 Hold button
0xaa0xbb 0x05 P/V/F button
0xaa0xbb 0x06 Max/min/avg button
0xaa0xbb 0x07 Exit Max/min/avg state
0xaa0xbb 0x08 Press Setup
b
acklight button to trun on/off
backlight
0xaa0xbb 0x09 Up button
0xaa0xbb 0x0a Down button
0xaa0xbb 0x0b Rec/Avg button
0xaa0xbb 0x0c Send handshake information (send command after
receiving 5 groups )
0xaa0xbb 0x0d Power off
0xaa0xbb 0x0e Keep pressing Hold
b
utton for 2 seconds to ZERO
pressure
0xaa0xbb 0x0f Keep pressing Rec/Avg button for 2 seconds to enter or
exit Recall mode
0xaa0xbb 0x10 Keep pressing Setup button for 2 seconds to enter or exit
Setup mode
Note:
1. Need to send the handshake information with Red color in above.