The BOKRA BM833A module uses the Fanstel compact SIP (system-in-package) BM833A. The BOKRA BM833A is a powerful, very flexible, low-power Bluetooth (BLE) smallest microcontroller board that uses the Nordic nRF52811 QFAA. This microcontroller has a Cortex M4 architecture. Frequency – 64 MHz. MCU flash memory - 192 kB, RAM - 24 kB.

The microcontroller supports I2C, SPI and USART. The microcontroller contains 12-bit ADC (speed – 200 Ksps).

The BM833A SIP contains a built-in 2.4 GHz multi-protocol transceiver and an integrated antenna for the printed circuit board. The range of BLE 5.1 - up to 680 meters.

Debug Interface - SWD. External connectors - I2C and mikroBUS slot.

Input power - 5V. The voltage regulator is Microchip's MIC5528, providing 500 mA output current. The BOKRA BM833A module contains a LiPo-battery charging circuit. There are RESET button and three LED-indicators (power and two software-controlled).

The size of the BOKRA BM833A – 28,6 x 25,4 mm.

Below are the main areas of application BOKRA BM833A :

• IoT (Internet of Things)
• Fitness / Sport
• Portable devices
• Buildings and houses automation
• Agriculture and agro-industry
• Lighting products
• Sensors
• Interactive entertainment devices

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