C Connections; C Jumper Definitions - Texas Instruments SimpleLink Wi-Fi LaunchPad CC3235 Series User Manual

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2.4.2 I

C Connections

The board features an accelerometer and a temperature sensor for the out-of-box demo. These features
are connected to the I
By removing J19 and J20, the accelerometer and the temperature sensors are isolated from the I
This also removes the I
connection to the circuit requires the user to install external pull-up resistors.
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Table 2 lists the I

C jumper definitions.

Reference
J20
J19
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2.4.2.1 Default I C Addresses
Table 3 lists the default I
Sensor Type
Temperature (MEMS IR Thermpile)
Accelerometer (Triaxial)
SWRU539 – January 2019
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C bus, and can be isolated using the jumpers provided (J19 and J20).
Figure 6. I
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C pull-up resistors from the sensor side of the circuit, and therefore any
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Table 2. I
Use
I2C SDA
I2C SCL
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C addresses of the onboard sensors.
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Table 3. Default I C Addresses (of Onboard Sensors)
Reference Designator on
LaunchPad
U12
U13
CC3235x SimpleLink™ Wi-Fi
Copyright © 2019, Texas Instruments Incorporated
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C Connections
C Jumper Definitions
Comments
Jumpers populated: onboard sensors connected
Jumpers not populated: onboard sensors disconnected
Part Number
(Manufacturer)
TMP116 (TI)
BMA280 (Bosch)
®
LaunchPad™ Development Kit (LAUNCHXL-
Hardware Description
2
C bus.
Default Slave Address
(Hex)
0x41
0x18
11
CC3235x)