BT840, Low Cost nRF52840 Bluetooth 5, Thread, Zigbee Module
BT840 is an advanced, highly flexible solution for today's increasingly demanding Ultra Low Power, Ultra Long Range, and higher throughput applications in the IoT world. Inherent industry-grade security is essential in today's applications, a cryptographic accelerator is embedded.
BT840 is a lower cost, $6.88 at 1 pcs, smaller size, shorter range alternative of BT840F. Both have identical soldering pad footprints.
Sister module BT840E has an u.FL connector for external connector.
For a brief description of Bluetooth mesh and its requirements for security, please go to webpage BT840F.
BT840 Advanced Features
Bluetooth 5 datarate: 2Mbps, 1Mbps, 500 Kbps, 125 kbps
IEEE 802.15.4 Thread and Zigbee
Nordic 2.4 GHz proprietary
1.7V to 3.6V DC power supply
High voltage power supply to accept up to 5.5V DC for direct connection to Lithium batteries or 5V system power. An external voltage regulator is not required. Your total system cost can be lower and your PCB size can be smaller.
Embedded CryptoCell 310 co-processor can be used to provide more secure connection and to prevent hacker.
BT840 is required if your Bluetooth 5 devices are used in mesh networks with many nodes for desirable performance. Security is mandatory in Bluetooth mesh networks. By offloading decryption, encryption, and authentication works to CryptoCell-310, BT840 can deliver high performance in Bluetooth mesh networks.
Nordic nRF52840 QIAA with ARM Cortex M4F
ARM CryptoCell-310 cryptographic co-processor
1MB flash, 256 KB RAM
Complete RF solution with integrated antenna
Bluetooth range: 100 meters at 1Mbps; 230 meters at 125 Kbps.
Multiple protocols: BLE, ANT, Thread, Zigbee
NFC-A tag interface for Out Of Band pairing
128-bit AES HW encryption
Serial Wire Debug (SWD)
Nordic SoftDevice Ready
Over-The-Air (OTA) firmware update
48 GPIOs, firmware configurable, Peripherals
12 bit/200KSps ADC
3x SPI Master/Slave, 8 Mbps
2x 2-wireMaster/Slave, I2C compatible
Quadrature Demodulator (QDEC)
I2S audio interface
Digital microphone interface
Peripherals: Temperature sensor, general comparator, Low power comparator, Random Number Generator
20 channel CPU independent Programmable Peripheral Interconnect (PPI)
5 x 32 bits, 3 x 24 bits Real Time Counters (RTC)
Operation voltage: 1.7V to 5.5V
Operation Temperature: -40°C to +85°C
Integrated shield to resist EMI
Certifications for Bluetooth and 802.15.4
FCC ID: X8WBT840F
IC (Industrial Canada) ID: 4100A-BT840F
Australia and New Zealand: RCM certified
For volume discount and production lead time, please email Fanstel.
EV BT840 has the same footprint as Arduino UNO R3. It is not an Arduino compatible board. You need Nordic development tools for firmware development.
Most of Arduino UNO R3 shields can be used with EV BT840. You can take advantage of Bluetooth 5 advanced features when used with Arduino shields.
A single order is preloaded with SLAVE firmware for used with Nordic nRF connect.