2019年2月28日 星期四

micro:bit 擴充板 -- Nexus:bit



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
  1. 擴充板具有獨立電源開關
  2. 18650鋰電池座與18650充電系統
  3. 具有電源指示燈及充電指示燈
  4. 電池反接偵測(反接無法啓動電源)
  5. 可以同時控制12個伺服馬達+2個直流馬達
  6. RGB彩色 LED燈
  7. 蜂鳴器
  8. 振動器
  9. 麥克風音量偵測 (可以調整霊敏度)
  10. 超音波測距感測器連接腳座
  11. micro:bit完整擴充腳位及額外I2C、SPI引腳
  12. 5V/3V 輸出接腳
  13. 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

Nexus:bit 電路圖下載 

1 則留言 :

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