Banana PI Bit board with EPS32 for STEAM education

Banana Pi Bit board with EPS32 for STEAM education

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The BPI:bit (also referred to as BPI-bit, stylised as webduino:bit) is an ESP32 with Xtensa 32bit LX6 dual-core processor based embedded system. support Webduino, Arduino, MicroPython as well as Scratch X programming environments.

BPI:Bit development board 5 cm width 5 cm long, weighs about 10 ~ 12 grams, in addition to below 20 Pin goldfinger interface, a built-in a 25 full-color LED lighting matrix, two photosensitive resistance button switch a temperature sensing resistor A buzzer and a nine shaft sensor (triaxial acceleration Three-axis gyroscope and three-axis magnetic compass), space configuration is as follows:

• Full color LED matrix :4

• photosensitive sensor :36 (A0 left) 39 (A3 right upper)

• button switch :35 (A) 27 (B)

• temperature sensor :34 (A6)

• buzzer: 25

• 9 axis sensor mpu-9250:21,22.

BPI Bit : provides a wide range of onboard resources, supports photosensitive sensor, digital triaxial sensor, digital compass, temperature sensor interface, gold finger interface and micro:bit fully compatible.

Webduino:bit have 25 intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components.Cascading port transmission signal by single line.Each pixel of the three primary color can achieve 256 brightness display, completed 16777216 color full color display, and scan frequency not less than 400Hz/s.

BPI-Bit interfact:

GPIO PIN define :

BPI:bit edge interface

5*5 LED list

BPI:bit have 25 LEDs on board ,you can control it with 1 GPIO . easy to use it.

25 5*5 LED list of BPI:bit

20

15

10

5

0

21

16

11

6

1

22

17

12

7

2

23

18

13

8

3

24

19

14

9

4

bpi:bit VS micro:bit

bpi:bit VS micro:bit

Module

bpi:bit

micro:bit

CPU

Dual-core 32bit Xtensa LX6, up to 240MHz

32bit ARM Cortex M0, up to 16MHz

RAM

520KB

256KB

ROM

448KB

Unkown

Flash

4MB

16KB

WIFI

802.11 b/g/n/e/i

N/A

Bluetooth

BT4.2 BR/EDR and BLE

BLE only

photosensitive sensor

2 light sensor

Basic light detection function on LEDs

temperature sensor

Stand along temperature sensor

On CPU chip temperature sensor

other senesor

MPU-9250 9-axis MotionTracking : 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer

3-axis Accelerometer; 3-axis magnetometer

Buzzer

1x Buzzer

N/A

5*5 LEDS

25 intelligent-control full-color (16777216 color) LEDs, Cascading all LEDs by a single line.

25 red LEDs

25 GPIO

edge interface (compatible with most micro:bit I/O features)

edge interface

Button

2 programmable buttons

2 programmable buttons

micro USB

1x micro USB(UART)

1 x micro USB(Mass Storage Device)

Software

Microsoft MakeCode, MicroPython, Scratch X

Size

5*5 cm

5*4 cm

Software

BPI:bit planning programming: