# 無人小車

![](https://kittenbothk.readthedocs.io/en/latest/_images/car1.jpg)

模擬一部小車，可以使用搖桿控制或者利用物聯網控制。

### 組裝說明書

[組裝說明書下載](https://github.com/kittenbothk/kittenbothk/raw/master/Kits/future_inventor/instructions/pdf/rc_kart.pdf)

### 參考接線

![](https://kittenbothk.readthedocs.io/en/latest/_images/rc_kart_wire.png)

#### 參考程式

#### KittenBlock參考程式

![](https://kittenbothk.readthedocs.io/en/latest/_images/rc_kart_code.png)

[參考程式下載](https://github.com/kittenbothk/kittenbothk/raw/master/Kits/future_inventor/instructions/sb3/rc%20kart.sb3)

#### Python參考程式

```
#/bin/python

from time import sleep
from future import *
from sugar import *
import robotbit

x = 0
y = 0


def indicator():
  global x,y

  if Joystick().value('x') > 50:
    neopix.setColor(2, (255, 255, 0))
    neopix.update()
    sleep(0.1)
    neopix.setColorAll((0,0,0))
  if Joystick().value('x') < -50:
    neopix.setColor(0, (255, 255, 0))
    neopix.update()
    sleep(0.1)
    neopix.setColorAll((0,0,0))



def valmap(x, in_min, in_max, out_min, out_max):
    return int((x-in_min) * (out_max-out_min) / (in_max-in_min) + out_min)


robot = robotbit.RobotBit()

robot.geekServo2kg(1, 90)

neopix=NeoPixel("P7",3)

while True:
  robot.geekServo2kg(1, valmap(Joystick().value('x'), 100, -100, 110, 80))
  robot.motor(1,valmap(Joystick().value('y'), -255, 255, 60, -60))
  indicator()
```

[參考程式下載](https://github.com/kittenbothk/kittenbothk/raw/master/Kits/future_inventor/instructions/py/kart.py)

### 模型玩法

1. 使用搖桿控制小車


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