2 Functional description
The Thetis-I mini evaluation board is an application-oriented development board meant to
support the rapid prototyping of a Wirepas mesh network. It offers the user the possibility to
develop hardware and software for the Thetis-I Wirepas module.
By default, the basic pin headers and connectors are assembled in the mini evaluation board.
The additional components shall be assembled by the user according to requirements and
application.
The addional assembly is intended for experienced developers, as additional accessories
and basic soldering skills are necessary to take the board into operation.
Accessories required:
• Additional assembly components listed in the table
• Soldering equipment
• (Optional) TTL-232R-3V3 FTDI cable
For the connection to a micro controller or PC the evaluation board is equipped P3 Pin head-
er which is connected to the pins of the radio module. The additional pin headers can be
soldered to the placeholders to access the module pins. Jumpers allow the power selection
and current measurement of the module.
The mini evaluation board can be connected to an USB port of a PC using TTL-232R-3V3
FTDI cable.
2.1 Taking into operation - PC
To take the mini evaluation board into operation using a PC, pin header P3 shall be used.
The corresponding FTDI driver package (
www.ftdichip.com/Drivers/VCP.htm
has to be installed on the PC. The installation guidelines shall be followed:
(
https://www.ftdichip.com/Support/Documents/InstallGuides.htm
To take the mini evaluation board into operation, please perform the following steps:
1. Connect the evaluation board to the PC
a) Connect the TTL-232R-3V3 FTDI cable to the connector P3 of the evaluation
board.
Incorrect orientation of TTL-232R-3V3 FTDI cable will damage the radio mod-
ule.
b) Then connect TTL-232R-3V3 FTDI cable to the USB port of the PC. In that way
a COM port can be detected and installed on the PC. In the device manager the
COM port name of the TTL-232R-3V3 FTDI cable can be found. A COM port
shall appear for example: "COM12" in Windows systems or "/dev/ttyUSB0" in
Linux systems.
Thetis-I Mini Evaluation Board user manual version 1.0
© February 2021
www.we-online.com/wireless-connectivity
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