Data Sheet

● Do not plug/unplug sensors from the TeraRanger Multiflex Hub while the device is

powered. Always disconnect the power supply first!

1.6 UARTDataInterface(default)

UART is available on pins 5 and 6. It accepts input voltage levels from 3.3V up to 5V. The

output voltage level is 3.3V. Please use a serial to USB interface (e.g. FTDI breakout

boards) to connect the TeraRanger Multiflex Hub to a computer via the UART interface.

Do not connect the TeraRanger Multiflex Hub to a real RS232 PC port, the voltage

levels are different and this might destroy the board's electronics.

The UART interface is configured to send and receive data at a transfer speed of 115200

bit/s with 8 data bits, no parity bit and one stop bit (115200-8N1). More information on the

different operation modes can be found in Section 4 (Protocol Description) of this manual.

1.7 I2CDataInterface



Another way to connect to the TeraRanger Multiflex Hub is via I2C interface. Using this

interface, you can connect a TeraRanger Multiflex sensor strip to an I2C master. In the

current firmware version, the I2C base address is fixed to 0x55. Please consider that due to

the fixed I2C base address, you can only run one TeraRanger Multiflex per I2C bus.

Nevertheless, you can connect other devices with different base addresses to the same

bus, but please make sure that the I2C master of the bus can still drive the sum of all

pull-up resistors on the bus.

Please refer to Section 1.5 (About the Connector) for the electrical connections to be made

for using I2C. The signal levels are 3.3V, the maximum bus speed is 400kHz and the

pull-up resistors (1.5kOhms) are already integrated in the TeraRanger Multiflex Hub.

1.8 USBInterface

You can directly connect the TeraRanger Multiflex Hub to your computer using a micro

USB cable. This cable will provide power and data communication. For both Linux and Mac

operating systems, a driver for this interface is already installed and the interface will

appear as a virtual COM port. It is configured to send and receive at 115200 bit/s with 8

data bits, no parity bit and one stop bit (115200-8N1). If you are using Windows, please

download the driver from http://www.st.com/en/development-tools/stsw-stm32102.html and

carefully follow the ”ReadMe file” instructions given by the installer. After successful



Terabee Website:

90RueHenriFabre Technicalsupport:

01630Saint-Genis-Pouilly Commercial:



www.teraranger.com

support@teraranger.com

teraranger@terabee.com

