1.1.1. Key features
The Proteus-III offers the following key features that are described in the manual in more
detail:
SPP-like connection-based secured data transmission:
The Proteus-III firmware imple-
ments an SPP-like Bluetooth
®
LE profile that allows the bidirectional data transmission
between several Proteus-III and/or to other Bluetooth
®
LE devices implementing the
AMBER SPP profile. Any module in the network can initiate a connection setup. Se-
cured connections allow the transmission of encrypted data.
Remote GPIOs:
The Proteus-III firmware allows to switch free module GPIOs via remote
control. More information can be found in chapter
Advanced customization capabilities:
The configurable Device Information Service (DIS),
the UUID and the appearance of the Bluetooth
®
LE profile, enable to personalize the
Proteus-III to fuse with the user’s end product.
Low power position sensing solutions:
The current TX power of any Proteus-III is always
transmitted with each advertising packet when the module is in command mode. With
this, distance estimation and position sensing solutions can be realized conveniently
by performing a passive scan.
Fast serial interface:
The Proteus-III offers a UART-interface to communicate with a host
using a user-defined baud rate and a simple command interface.
Latest microprocessor generation provided by Nordic Semiconductor nRF52 series:
The heart of the Proteus-III is a Bluetooth
®
LE chip of the nRF52 series offering high
performance values combined with low power consumption. It is a 32 Bit ARM Cortex-
M4F CPU with 1024kB flash + 256kB RAM and up to 8dBm output power.
Bluetooth
®
5 stack:
The Bluetooth
®
5 stack enables fast and energy efficient data trans-
mission using state-of-the-art technology of Nordic Semiconductors.
High throughput mode:
The Proteus-III contains the so called "High throughput mode"
that allows to send up to 4 data packets per connection interval. This increases signif-
icantly the throughput. This mode and its usage is described in Application Note AN-
R006.
All Bluetooth
®
LE roles supported:
The integrated Bluetooth
®
LE stack supports all Bluetooth
®
LE
roles. Depending on the current state of operation the Proteus-III firmware automati-
cally switches its role to execute the user’s instructions.
Flexible wired interfacing:
The Proteus-III is equipped with extra pins suited for custom
device/sensor connection. With help of these, a tailored firmware can be developed
which is optimized to the customer’s needs. The pins can be configured to various
functions such as UART, SPI, I2C, ADC, PWM, NFC and GPIO.
OTA firmware update:
The Proteus-III firmware provides over the air firmware update ca-
pabilities. Firmware updates can be applied using the Nordic Apps for cell phones.
Proteus-III reference manual version 1.3
© August 2020
www.we-online.com/wireless-connectivity
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