4.2.8
Digital output humidity sensors: supported commands
Table 11. Digital output pressure sensors: supported commands list
below lists the commands supported by the
devices/demonstration boards including a digital output humidity sensor.
Table 12.
Digital output humidity sensors: supported commands list
Command
Description
Returned value
*setdbXXXVY
Selects firmware according to the adapter connected
*start
Starts continuous data acquisition
Table 4. Returned values for *start command
*debug
Returns the output data in readable text format
Table 5. Returned values for *debug command
*stop
Stops data acquisition
*Zon
Forces 3-state
*Zoff
Exits from 3-state
*dev
Device name
e.g.: LIS3DH
*ver
Firmware version
e.g.: V1.0
*hrAA
Humidity sensor register read
e.g.: HRAAhDDh
*hwAADD
Humidity sensor register write
*single
It gets a single X, Y, and Z data acquisition
Table 5. Returned values for *debug command
*list
Prints the list of MKIs supported
e.g.: MKI105V1
*listdev
Prints the list of devices supported
e.g.: LIS3DH
*echoon
Activates the write verbose mode
e.g.: PRAAhDDh
*echooff
Deactivates the write verbose mode
4.3
Quick start
This section shows the basic sequence of commands, based on the LIS3DH accelerometer, to start a data
communication session and to retrieve the X, Y, and Z acceleration data from the demonstration kit:
1.
Connect the eMotion to the USB port
2.
Start “Microsoft
©
HyperTerminal” and configure it as described in
3.
Inside the “HyperTerminal” window, enter the command *setdb105v1 (supposing the LIS3DH adapter board
is used, for other adapters see the relevant datasheets to check the register configuration), enter the
command *Zoff to enable the control of the device by the STM32F103RET6 microcontroller, and *w2047 to
switch on the LIS3DH and to set the data rate to 50 Hz
4.
Send the *debug command to get the X, Y, and Z data measured by the sensor
5.
Send *stop to end the continuous acquisition and visualization.
UM0979
Quick start
UM0979
-
Rev 6
page 29/39
