Introduction
EV BT832 V2 has the same footprint as that of Arduino UNO
R3. It is not an UNO R3 compatible board. Many UNO R3
shields can be used with EV BT832.
•It is preloaded with firmware for evaluating transmission
performance of Bluetooth module.
•Firmware can be developed for other applications. You
need development environment as recommended by
Nordic for nRF52. A Nordic nRF52 DK is recommended
for programming this evaluation board.
•If not used on board, all GPIO pins are available at
connectors. Whenever possible, with firmware
configuration, pin function can be compatible with that of
Arduino UNO R3.
Hardware Description
EV-BT840F V3 schematics can be downloaded from http://
www.fanstel.com/download-document/. The same main
board is used for BT832 and BT840F. Pins in solid dots are
not used in EV-BT832. Descriptions of hardware:
1. J17, mini USB connector. The first DC power input and
USB connection.
Portable
smartphone
charger with
auto powering
down feature
can be used. It
has circuitry to
generate
periodic load to
prevent auto
powering down of
some portable smartphone chargers.
2. J16, micro USB connector. The second DC power input.
3. J18, up to 3.6V DC input to module directly, no voltage
regulator on board. Module power consumption can be
measured using a current meter (on J19) or an
oscilloscope (on J20) across an 1 ohm resistor. SW6 must
be OFF to disconnect UART pins for current
measurement.
4. Set S1 to High for AT command mode, to Low for Data
mode. AT command firmware is required, not preloaded.
5. Reset button
6. J1. Power, ground and reset connection to Arduino UNO
R3 shields or Fanstel shields.
7. J5 GPIO pins
8. 4 buttons for testing
9. J3. Not used for BT832. Break-out pins for additional
nRF52840 GPIO pins.
10. J4, J5, J2. Connectors for GPIO pins
11. J21. Ground connection
12. JS1. 10-pin debug-in connection to Nordic nRF52 DK.
13. JS2. 4-pin SWD connector
14. J13 for use with shields
15. LED 5. Power-on indicator
16. LED 2.
17. LED 4.
18. J19 for power consumption measurement. Set SW7 pin
2/3 to OFF and connect a current meter.
19. J14, 3V battery input
20. J20, use an oscilloscope for current measurement across
an 1-ohm resistor.
Testing Mesh Stacks
Up to 65536 nodes are supported in a mesh network. Each
node can be addressed and controlled by the controller, a
smart phone in this demo.
1. Search for and
download BlueNor
Mesh from Google Play
or Apple APP store.
2. Powering up only one
evaluation board to find
5-digit ID for the node.
3. Open BlueNor Mesh
and touch Scan.
4. Write down the 5-digit node ID number. In
this example, 57054.
5. Touch to select the BLE device, in this
example rbc_mesh #57054.
6. Powering up all nodes. They are
connected automatically.
7. Enter the node ID number 57054 and
press Send.
8. When node 57054 receives this
command, it toggles LED indicator
ON/OFF, and sends an ACK message
to the smartphone.
9. When smartphone receives the ACK
message, it displays the node ID
number and ACK sequence number.
In this example, 57054ack4 is the 4th
ACK message received from node
57054.
Bluetooth Range with a Smartphone
To measure Bluetooth line of sight range with a
smartphone
1. Follow Procedures to Send Message in Mesh
Network.
2. Test for the maximum range to receive ACK message
from the node.
3. Measuring Bluetooth range
between 2 EV BT832 is not
recommended using this
method. Range with a
smartphone is longer than range
between 2 EV BT832.
Using BlueNor EV BT832/BT832F Evaluation Boards
Since 1990
Fanstel Corp. | 7466 E. Monte Cristo Ave. Scottsdale, AZ 85260 USA| t: 1 480.948.4928 | e: info@fanstel.com | w: http://www.fanstel.com
Fanstel Technologies Corp. 11 Jiale St. Ping-Dih, Long-Gang, Shen Zhen, GD 518117, China t: 86.755-8409-0928
Fanstel Corp. 10F-10,79 Xintai Wu Road, Xizhu, New Taipei City, Taiwan t: 886.2.2698.9328
V1.0, May 2017
