Calypso ULP STD User Manual page 11

baudrate:
2400 to 115200 (8n1) bauds
output rate:
0.1 to 20 Hertz (Depends on the filter you select)
output units:
m/sec., knots or km/h
Power consumption:
Ultra-Low-Power (I2C): 0,15 mA @5V, 1Hz.
6.4.3 I2C Sentences
General Options
Address I2C- 0x15 ( 21 decimal )
Frecuency -100kHz – 400kHz
SDA -TX (Yellow)
SCL - RX (Green)
Write Register
In order to write about the register it is necessary
to write
2 bytes, the I2C bus direction and the register
you need to check.
I2C Address (1 Byte) + Register Address (1 Byte)
Address -0x15 (21 decimal)
Available Registers:
Wind Raw Stat - 0x10
Wind 2 Min Stat - 0x12
Wind 5 Min Stat - 0x15
Wind 10 Min Stat - 0x1A
Wind Full Stats - 0x1F
ULP STD
User manual
Read Register
For the read register we need to take into
account how many bytes is the system giving us
back and what bytes we need to read in order to
obtain the value we need.
Data are under big-endian criteria. The first byte,
the more valuable one to be represented.
E.g. If 2 bytes are read, byte 0 and byte 1, we will
read the first byte as 0x05 and second byte
0x0A.
0 0 0 0 0 1 0 1
The first byte is marked in orange. The more
valuable one. The second byte is marked in blue
( less significant one LSB).
0 0 0 0 1 0 1 0
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