ANNA-B402 (open CPU)

Stand-alone Bluetooth 5.1 Low Energy module

Ultra-compact module for harsh professional environments

Standard

Professional

Automotive

ANNA-B402

Bluetooth Low Energy module with open CPU, internal antenna, and antenna pin for external antenna connection.

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Product variants	ANNA-B402
Short Range Features
Bluetooth qualifications	v5.1 (Bluetooth Low Energy)
Chip inside	nRF52833
Bluetooth low energy output power EIRP [dBm]	9
Maximum range [m]	800
Throughput Bluetooth	1.4
Maximum number of connections	20
Bluetooth profiles and services	Bluetooth GATT
CPU Features
Microprocessor on boards	Standalone module open CPU
Interfaces
UART	2
USB	1
GPIO	33
ADC	8
SPI	4
TWI (I2C compatible)	2
PDM	1
PWM	4
Electrical data
Maximum supply [V]	3.6
Minimum supply [V]	1.7
Environmental data, quality & reliability
Maximum temperature [°C]	105
Minimum temperature [°C]	-40
Features
Angle-of-Arrival (AoA)	✓
Angle-of-Departure (AoD)	✓
Bluetooth high speed (LE 2M PHY)	✓
Bluetooth long range (coded PHY)	✓
Bluetooth mesh	✓
Factory programmed MAC address(es)	✓
FOTA	✓
Secure boot ready	✓
Simultaneous GATT server and client	✓
Supports customer applications	✓
General features
Antennas	Internal antenna, Antenna pin
Dimensions
Dimensions [mm]	6.5 x 6.5 x 1.2