Qwiic Connector; Debug Usb Micro-B Connector - Silicon Laboratories BB52 Explorer Kit User Manual

mikro- mikroBUS Pin
BUS Pin Function
Name
3V3 VCC 3.3V power
5V VCC 5V power
GND Reference Ground

3.6.3 Qwiic Connector

The BB52 Explorer Kit features a Qwiic® connector compatible with Qwiic Connect System hardware. The Qwiic connector provides an
easy way to expand the functionality of the BB52 Explorer Kit with sensors, LCDs, and other peripherals over the I
Qwiic connector is a 4-pin polarized JST connector, which ensures the cable is inserted the right way.
Qwiic Connect System hardware is daisy chain-able as long as each I
2
Note: The Qwiic I C connections on the BB52 Explorer Kit are shared with the mikroBUS I
The Qwiic connector and its connections to Qwiic cables and the EFM8BB52 are illustrated in the figure below.
The table below gives an overview of the Qwiic connections to the EFM8BB52.
Qwiic Pin Connection
Ground GND
3.3V VMCU
SDA P1.5
SCL P1.6

3.6.4 Debug USB Micro-B Connector

The debug USB port can be used for uploading code, debugging, and as a virtual COM port. More information is available in section
4. Debugging.
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Connection
VMCU EFM8BB52 voltage domain
5V Board USB voltage
GND
Figure 3.7. Qwiic Connector
Table 3.2. Qwiic Connector Pinout
Shared Feature
Ground
EFM8BB52 voltage domain
MikroBUS_I2C_SDA,
BREAKOUT_LEFT11
MikroBUS_I2C_SCL,
BREAKOUT_LEFT12
Shared Feature
Ground
2
C device in the chain has a unique I
2
C signals.
GND
VMCU
SDA - P1.5
SCL - P1.6
Suggested Peripheral Mapping
UG512: BB52 Explorer Kit User's Guide
Hardware
Suggested Peripheral Mapping
-
-
-
2
C interface. The
2
C address.
Qwiic cable
-
-
SMB0.SDA
SMB0.SCL
Rev. 1.0 | 11