BT832, BT832F nRF52832 BLE 5 Module

 

BT832, BT832F, BT840F, and BT832X

 

The Best Bluetooth 5 and Mesh Network Solutions

Hard to reach nodes are likely in mesh networks. BlueNor BT832 Series modules are the best solution for mass Bluetooth 5 deployment and in mesh networks. A host board can be designed to accommodate the following modules.

  1. Develop your Bluetooth 5 products using BT832, a low cost module with Cortex M4F, $5 each at 1 pcs.
  2. Upgrade with BT832F when 220 meters range is required.
  3. Upgrade with BT832X (nRF52832 + power amplifier module) when 1170 meters range is required.
  4. Upgrade with BT832XE (nRF52832 + power amplifier + u.FL module), when an external antenna is required. BT832XE is the longest range Bluetooth 5 module.
  5. Upgrade with BT840F (nRF52840 module) when support for IEEE 802.15.4 Thread, Zigbee or high performance secure Bluetooth mesh is required.
  6. Upgrade with BT840E (nRF52840 + u.FL module) when support for IEEE 802.15.4 Thread, Zigbee or IoT security is required.
  7. Reduce cost by using BT832A (nRF52810 module) if 192KB flash/24KB RAM is enough. 

With Bluetooth 5 mesh network protocol stacks and BlueNor BT832 Series modules, no hardware redesign is needed to reach any node in mesh network. For  wide area network, BT832X can be used in Relay node. For mesh networks with many nodes, BT840F with CryptoCell-310 co-processor is recommended for Relay node.

Using BlueNor Bluetooth 5 module in Bluetooth 5 mesh network

Using BlueNor Bluetooth 5 module in Bluetooth 5 mesh network

The Lowest Cost Bluetooth 5 Module

For point to point application, BT832A is the lowest cost, certified Bluetooth 5 module with a Cortex M4 processor. 

Measuring Bluetooth Ranges in Mesh Networks

Bluetooth Mesh Evaluation board is preloaded with mesh protocol testing firmware. Up to 32000 nodes are supported. Each node can be addressed and controlled by smartphone. Two nodes (evaluation boards) are used for range measurements.

Using BlueNor Mesh evaluation boards to measure Bluetooth range

Using BlueNor Mesh evaluation boards to measure Bluetooth range

Procedures for measuring Bluetooth ranges.

  1. Download BlueNor Mesh User Manual from DOWNLOAD page.
  2. Download BlueNor Mesh APK from Google Play Store or Apple App Store.
  3. Follow Procedures to Send Message in Mesh Network in the manual.
  4. Test for the maximum range to receive an ACK from node B.
  5. Rotate Node A by 30 degrees and take 12 total measurements. 
Bluetooth range measurement, one antenna is rotated by 30 degrees after each measurement.

Bluetooth range measurement, one antenna is rotated by 30 degrees after each measurement.

A Samsung phone is used to measure range with BT832. The second BT832 (Node B) is removed. 

  1. Range is less directional when measured with a Samsung phone.
  2. Average range of 12 measurements between BT832 and a Samsung phone is 110 meters.
  3. Average range between two BT832 is 102 meters.
  4. Average range between two BT832F is 271 meters.
  5. Enclosure of final product will reduce Bluetooth range. Interference from other wireless sources, walls, and other physical objects will also reduce Bluetooth range. Bluetooth range in end user environment will be shorter.

We measured these ranges on a road in Shen Zhen, China. Both sides of road have grown trees forming a "green tunnel". We can not measure range for more than 400 meters at this site for BT832X. Range measurements for BT832X and BT832XE are done in a farmland east of Scottsdale Arizona USA.

Upgradeable Bluetooth Range

To accommodate high performance antenna and power amplifier, physical sizes of BT832 Series modules are different. However, the soldering pad footprint is identical for all modules. Bluetooth range can be upgraded by replacing module only. No change to main board hardware and firmware is required (about 100 mA DC current is required for BT832X). Multiple versions of the same product can be made to meet various range requirements for mass deployment in mesh networks.

All nRF52832 GPIO pins can be accessed by either castellated pins or LGA pins. 

BT832, BT832F, BT840F, and BT832X with the same castellated and LGA pins (top view)

BT832, BT832F, BT840F, and BT832X with the same castellated and LGA pins (top view)

BT832, BT832F, BT840F, and BT832X modules, bottom view

BT832, BT832F, BT840F, and BT832X modules, bottom view

When you need to support Thread or Zigbee protocol, or IoT security, a BT840F module can be mounted instead. BT840F has 48 GPIOs, 32 GPIOs can be accessed when it is mounted to a board designed for BT832.

BT832, Low Cost BLE 5 Module

  • nRF52832 QFAA with Cortex M4F at 64MHz
  • 512KB flash/64KBRAM
  • NFC-A tag interface
  • Bluetooth Line of Sight Range: 75 to 140 meters
  • Sizes: 14.0x16.0x1.9mm
  • Peak current 7.5mA at +4dBm TX.
  • Certification: FCC, Industrial Canada
  • Availability: in production
  • Unit price: $4.73 each at 1K pcs
  • $5 Bluetooth 5 module special: $5.00 each starting at 1 pcs.

BT832F, long range, low cost BLE 5 module

  • nRF52832 QFAA with Cortex M4F at 64MHz
  • 512KB flash/64KBRAM
  • NFC-A tag interface
  • Bluetooth Line of Sight Range: 220 to 330 meters
  • Sizes: 15.0x20.8x1.9mm
  • Peak current 7.5mA at +4 dBm TX.
  • Certification: FCC, Industrial Canada
  • Availability: in production
  • Unit price: $5.22 each at 1K pcs

Specifications

  • Nordic nRF52832 QFAA with ARM Cortex M4F (M4 for nRF52810 module)
  • 512 KB flash, 64 KB RAM (192KB flash/64 KBRAM for nRF52810 module)
  • Complete RF solution with integrated antenna
  • NFC-A tag interface for Out Of Band pairing (not for nRF52810 module)
  • 128-bit AES HW encryption
  • Serial Wire Debug (SWD)
  • Nordic SoftDevice Ready
  • Over-The-Air (OTA) firmware update

32 GPIOs, firmware configurable and Peripherals

  • 12 bit/200KSps ADC, 8 configurable channels with programmable gain
  • Type 2 near field communication (NFC-A) tag
  • 64 level comparator
  • 15 level low power comparator with wake-up from system OFF mode
  • Temperature sensor
  • 3x 4-channel pulse width modulator (PWM) units with EasyDMA
  • Digital microphone interface (PDM)
  • 5x 32 bit timers with counter mode
  • Up to 3x SPI Master/Slave with Easy DMA
  • Up to 2x I2C compatible 2-wire master/slave
  • I2S with EasyDMA
  • UART (CTS/RTS) with EasyDMA
  • Programmable peripheral interconnect (PPI)
  • Quadrature Demodulator (QDEC)
  • AES HW encryption with EasyDMA
  • Autonomous peripheral operation without CPU intervention using PPI and Easy DMA
  • 3x real time counter (RTC)

Power:

  • Operation voltage: 1.7V to 3.6V
  • Peak current: 5.4 mA RX, 5.3 mA TX at 0 dBm.
  • 0.4 uA OFF mode, 1.8 uA idle

Miscellaneous

  • Operation Temperature: -40°C to +85°C 
  • Integrated shield to resist EMI

Certifications:

  • FCC ID: X8WBT832
  • IC (Industrial Canada) ID: 4100A-BT832
  • Europe: approved
  • QDID: 97989 

Datasheets, certificates, evaluation board schematics are available for download.

Evaluation Boards

Evaluation board is pre-loaded with BlueNor Mesh testing firmware. User manual can be downloaded from the section below.

AT command firmware can be DOWNLOADED from this webpage. We suggest using a Nordic nRF52DK to load firmware into evaluation board.

Order Products

For volume discount and production lead time, please email Fanstel

BT832, Low cost Bluetooth 5 module
from 5.00

BT832 Bluetooth 5 module for $5 special starting at one pcs.

10-pack, $5.00 each

Reel quantity (1K pcs), $4.73 each.

Flat rate shipping is available within the USA via USPS and worldwide via DHL International Express

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BT832F, Low cost, 220 meters range Bluetooth 5.0 module, $5.22 each at 1Kpcs
from 7.84

BT832F, BLE 5.0 module with the same soldering pad footprint as BT832 and 220 meters range.

10-pack price, $6.53 each;

100-pack price at $6.01 each

1K pcs-reel price, $5.22 each

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EV-BT832, Evaluation board for BT832, Bluetooth 5 module
60.00

Evaluation board for BT832 and BT832F

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