NRF52840 Feather Express Board

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Board Plate :
Firmware :
IO Headers :

This board enables connecting buttonsswitchesencoders, potentiometers,  rotary switchesjoysticks  and various sensors, to easily deploy wireless solutions.

 

An battery charging circuit allows you to power the board with a battery for embedded applications, along with an internal connexion in order to measure precisely the battery voltage, so you will know the charge that's left.

 

You will have access to 22 I/Os, including 8 analog inputs with one 14 bits ADC (one analog input is reserved for battery charge measure). The inputs are 3.3 V and are not 5 V tolerant. The heart of this board is the NRF52840, the most suitable microcontroller on the market for embedded systems. Clocked at 64 MHz, it also offers 2 SPI ports, 1 I2C port , and 1 serial port. Like all the boards we propose, we have enhenced the kernel in order to offer as much features as possible. 

 

This board is compatible with all our radio solutions, including the LeoDongle and the NrfDongle.

 

Attention, product currently out of stock, estimated arrival date : 03 December 2020

SchematicsPinoutDimensionsOptionsAccessories

 

Default program :

 
Board Plate
TBB_01 Plate
TBB_01 Plate

3D PLA Printed plate for the TBB_01 board family.

 
Firmware
 
IO Headers
Male header 1x40 pins 11.5mm
Male header 1x40 pins 11.5mm

Male Header

Number of rows : 1

Number of pins : 40

Pitch : 2.54 mm

Pins height : 11.5mm

Male header 1x40 pins Right Angle
Male header 1x40 pins Right Angle

Male Header

Number of rows : 1

Number of pins : 40

Pitch : 2.54 mm

Pins height : 11.5mm

JST 2.0 Cable 2 pins 15cm
JST 2.0 Cable 2 pins 15cm

JST 2.0mm Cable

Number of pins : 2

Length : 15cm

Male Connector : seamed on the cable

Dupont Cable 2 pins 20cm x10
Dupont Cable 2 pins 20cm x10

Dupont Cable 2 pins 20 cm  (pack of 10)

micro USB Cable Double Ferrite 2m
micro USB Cable Double Ferrite 2m

USB cable with 2 ferrites which limits electromagnetic interferences.

Length : 2 m

Connector : micro-USB

micro USB Retractable Cable
micro USB Retractable Cable

USB Retractabe cable

Length : 30 cm

Connector : micro-USB

NRF Dongle
NRF Dongle

NRF52840 micro-controler based dongle.

 

This dongle can be used as a radio receiver and is compatible with all our radio boards (based on NRF24 modules or NRF52840).

 

The NRF52840 micro-controler includes an USB hardware controler which can be programmed to create a gaming device, a keyboard, a mouse, etc..

 

 

Dimensions : 

- Length : 43 mm (including USB connector)

- Width : 18 mm

- Height : 9 mm