適合初學者的最佳DIY機器人教育套件 -- Nexus:bit
Nexus:bit為一款針對micro:bit所做的模組化動力套件，它整合各種子元件並大幅簡化電路接線。擁有了 Nexus:bit再結合micro:bit 圖形化的積木編程，不論是新手或老手，都能快速打造出micro:bit 各種應用，包含無線遙控車、機械手臂、人型機器人....micro:bit 具備圖形編程平台也支援python 語言撰寫。
Nexus:bit 功能描述
- 擴充板具有獨立電源開關
- 18650鋰電池座與18650充電系統
- 具有電源指示燈及充電指示燈
- 電池反接偵測(反接無法啓動電源)
- 可以同時控制12個伺服馬達+2個直流馬達
- RGB彩色 LED燈
- 蜂鳴器
- 振動器
- 麥克風音量偵測 (可以調整霊敏度)
- 超音波測距感測器連接腳座
- micro:bit完整擴充腳位及額外I2C、SPI引腳
- 5V/3V 輸出接腳
- 香菇頭搖桿(上下左右及A,B兩按鍵)
Note: 當接入USB外部電源時，會自動切斷18650電池電源, Nexus:bit 電源會來自USB外部電源
Nexus:bit Shield
v1.0
- USB External Power
Supply with high current fuse protection
- Li-ion 18650 Battery Holder
- Li-ion 18650 charger
system
- Short circuit
protection
- Power On/Off switch with
LED indicator (On: High-Brightness Green LED)
- PCA9685 (PWM for Servo
Motor and RGB LED)
- Servo: PWM connectorx12
- RGB LED: PWM (PWM 8,9,10)
- DC Motor x2
- GPIO
- Buzzer x1
- Vibratorx1
- LEDx1
- Micro:bit PWM/Digital
Output pin
- Sound detection Module with
a built-in potentiometer to adjust the sensitivity of the digital output
pin.
- Edge connector
- Front interface for Joystick
- Analog pin P1 (X),P2(Y),
Button A, Button B
- Front interface for
ultrasonic distance sensor (HC-SR04)
- I2C connector x2
- SPI connector x1
- 5V/3V Output connectorx2
※Li-ion 18650 可以採購2000mAH~2500mAH以上
Nexus:bit 電子產品檢測認證 Safety
Nexus:bit Pinmap
Pin
|
Type
|
Function
|
|
0
|
Touch
|
Pad 0
|
P0 or Buzzer (by Jumper)
|
1
|
Touch
|
Pad 1
|
Joystick AD
|
2
|
Touch
|
Pad 2
|
Joystick AD
|
3
|
Analog
|
Column 1
|
X
|
4
|
Analog
|
Column 2
|
X
|
5
|
Digital
|
Button A
|
Joystick Button A
|
6
|
Digital
|
Row 2
|
X
|
7
|
Digital
|
Row 1
|
X
|
8
|
Digital
|
Viberator
|
|
9
|
Digital
|
Row 3
|
X
|
10
|
Analog
|
Column 3
|
X
|
11
|
Digital
|
Button B
|
Joystick Button B
|
12
|
Digital
|
Microphone/LED1
|
|
13
|
Digital
|
SPI MOSI
|
SPI MOSI/M1A
|
14
|
Digital
|
SPI MISO
|
SPI MISO/ M1B
|
15
|
Digital
|
SPI SCK
|
SPI SCK/ M2A
|
16
|
Digital
|
SPI CE/ M2B
|
|
19
|
Digital
|
I2C SCL
|
I2C SCL for PCA9685
|
20
|
Digital
|
I2C SDA
|
I2C SDA for PCA9685
|
