Baro ETS (I2C).

Driver for the EagleTree Systems Baro Sensor. Has only been tested with V3 of the sensor hardware.

Notes: Connect directly to TWOG/Tiny I2C port. Multiple sensors can be chained together. Sensor should be in the proprietary mode (default) and not in 3rd party mode.

Sensor module wire assignments:

Red wire: 5V
White wire: Ground
Yellow wire: SDA
Brown wire: SCL

Example for airframe file

Add to your firmware section: This example contains all possible configuration options, not all of them are mandatory!

<module name="baro_ets">
  b'<define name="BARO_ETS_SCALE" value="scale" />\n    '
  b'<define name="BARO_ETS_ALT_SCALE" value="scale" />\n    '
  b'<define name="BARO_ETS_ALT_SCALE" value="scale" />\n    '
  b'<define name="BARO_ETS_START_DELAY" value="delay" />\n    '
  b'<define name="BARO_ETS_SYNC_SEND" />\n  '
  b'<configure name="BARO_ETS_I2C_DEV" value="i2cX" />\n    '
</module>

Module configuration options

Configure Options

name: BARO_ETS_I2C_DEV value: i2cX
Description: set i2c peripheral (default: i2c0)

Define Options

name: BARO_ETS_SCALE value: scale
Description: scale factor to convert raw ADC measurement to pressure in Pascal (default: 37.5)
name: BARO_ETS_ALT_SCALE value: scale
Description: scale factor to convert raw ADC measurement to altitude change in meters (default: 0.32)
name: BARO_ETS_ALT_SCALE value: scale
Description: pressure offset in Pascal when converting raw adc to real pressure (default: 101325.0=
name: BARO_ETS_START_DELAY value: delay
Description: set initial start delay in seconds
name: BARO_ETS_SYNC_SEND value: None
Description: flag to transmit the data as it is acquired

Module functions

Init Functions

These initialization functions are called once on startup.

baro_ets_init()

Event Functions

These event functions are called in each cycle of the module event loop.

BaroEtsEvent()

Periodic Functions

These functions are called periodically at the specified frequency from the module periodic loop.

baro_ets_read_periodic()
- Frequency in Hz: 10.
- Autorun: LOCK
  Periodic function automatically starts after init and can't be stopped.

Files

Header Files

The following headers are automatically included in modules.h

baro_ets.h

Source Files

modules/sensors/baro_ets.c

Raw baro_ets.xml file:

<!DOCTYPE module SYSTEM "module.dtd">
 
<module name="baro_ets" dir="sensors" task="sensors">
  <doc>
    <description>
      Baro ETS (I2C).
      Driver for the EagleTree Systems Baro Sensor.
      Has only been tested with V3 of the sensor hardware.
 
      Notes:
      Connect directly to TWOG/Tiny I2C port. Multiple sensors can be chained together.
      Sensor should be in the proprietary mode (default) and not in 3rd party mode.
 
      Sensor module wire assignments:
      - Red wire: 5V
      - White wire: Ground
      - Yellow wire: SDA
      - Brown wire: SCL
 
    </description>
    <configure name="BARO_ETS_I2C_DEV" value="i2cX" description="set i2c peripheral (default: i2c0)"/>
    <define name="BARO_ETS_SCALE" value="scale" description="scale factor to convert raw ADC measurement to pressure in Pascal (default: 37.5)"/>
    <define name="BARO_ETS_ALT_SCALE" value="scale" description="scale factor to convert raw ADC measurement to altitude change in meters (default: 0.32)"/>
    <define name="BARO_ETS_ALT_SCALE" value="scale" description="pressure offset in Pascal when converting raw adc to real pressure (default: 101325.0="/>
    <define name="BARO_ETS_START_DELAY" value="delay" description="set initial start delay in seconds"/>
    <define name="BARO_ETS_SYNC_SEND" description="flag to transmit the data as it is acquired"/>
  </doc>
  <dep>
    <depends>i2c</depends>
    <provides>baro</provides>
  </dep>
 
  <header>
    <file name="baro_ets.h"/>
  </header>
  <init fun="baro_ets_init()"/>
  <periodic fun="baro_ets_read_periodic()" freq="10."/>
  <event fun="BaroEtsEvent()"/>
 
  <makefile target="ap">
    <configure name="BARO_ETS_I2C_DEV" default="i2c0" case="upper|lower"/>
    <define name="USE_$(BARO_ETS_I2C_DEV_UPPER)"/>
    <define name="BARO_ETS_I2C_DEV" value="$(BARO_ETS_I2C_DEV_LOWER)"/>
    <file name="baro_ets.c"/>
  </makefile>
 
</module>