User manual

BlueSentry User Manual
www.rovingnetworks.com BlueSentry-um Version 1.0 3/12/2010
809 University Avenue • Los Gatos, CA 95032 • Tel [phone] • [e-mail]
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Expansion Header
BlueSentry contains an internal 12 pin .1inch spacing header along the long edge of the circuit board. Refer to
page 3 for the description of the pins.
Power Pins
BlueSentry has a built in Low Drop Out regulator which supplies clean 5V to the AD circuits. For best operation,
apply 6V or more to V+ (Pin 1 on Screw Post) to get solid +5V range readings. Regulated 5VDC power can be
tapped using JP1 on top header. Please refer to the board description for more details. Power draw is approx
70ma when connected, as low as 7ma average when idle, depending on settings.
Physical Ports
BlueSentry has 2 AD channels, VCC, and GND on the 4 terminal screw posts. The other 6 channels can be
accessed via the RJ45 connector, or the internal 12 pin header.
RJ45 – Pin 1 on right side (LEDs on TOP) Screw Posts- Pin1 on left side looking into
connector
1-V+ 1-V+
2-CH5 2-CH1
3-CH3 3-CH2
4-CH4 4-GROUND
5-GROUND
6-CH6
7-CH7
8-CH8
Data Output Formats
BlueSentry acquires signals with 16 bit accuracy, in the range of 0 to +5VDC. A value of 0x0000 represents 0
volts, a value of 0xFFFF represents 5Volts.
Full ASCII mode data will flow in the following character displayable HEX format:
-SSSS 1111 2222 3333 4444 \n\r
SSSS is a sequence number, starts at 1, rolls at 0xFFFF
FAST ASCII mode data will flow in the following character displayable HEX format:
1111222233334444 \n\r
Binary mode data will flow in the following RAW BINARY format:
2DSSSS1111222233334444\r ( \r = decimal 13, 2D = ‘-‘ ).
FASTBinary mode data will flow in the following RAW BINARY format:
1111222233334444\r ( \r = decimal 13, 2D = ‘-‘ ).
Channel mask Mode for selecting channels
By using the “<XY” command, BlueSentry can be set to sample any number of channels. The XY value is an 8 bit
map of the channels. For example, if you want channels 4 and 6, you would enter “<28”. Channels are returned in
order from 1-8. Default is 00, which disabled this mode.