Control RGB Light

1. API Introduction

The API for the RGB light is: Arm_RGB_set(R, G, B)

Function: Sets the color of the RGB light.

Parameter Description:

R: Controls the red brightness of the RGB light, range 0-255, the larger the value, the brighter.

G: Controls the green brightness of the RGB light, range 0-255, the larger the value, the brighter.

B: Controls the blue brightness of the RGB light, range 0-255, the larger the value, the brighter.

Return value: None.

2. Code

Taking the Raspberry Pi version as an example, open JupyterLab from the browser. Code path:

~/dofbot_ctrl/scripts/01.rgb.ipynb

​x
#!/usr/bin/env python3
#coding=utf-8
import time
from Arm_Lib import Arm_Device
​
# 获取机械臂的对象 Get the robot arm object
Arm = Arm_Device()
time.sleep(.1)
​
def main():
    while True:
        Arm.Arm_RGB_set(50, 0, 0) # RGB亮红灯 RGB lights up red
        time.sleep(.5)
        Arm.Arm_RGB_set(0, 50, 0) # RGB亮绿灯 RGB green light
        time.sleep(.5)
        Arm.Arm_RGB_set(0, 0, 50) # RGB亮蓝灯 RGB blue light
        time.sleep(.5)
​
        print(" END OF LINE! ")
​
try :
    main()
except KeyboardInterrupt:
    # 释放Arm对象 Release the Arm object
    del Arm
    print(" Program closed! ")
    pass
​

Open the code file from Jupyter Lab and click the "Run All Cells" button on the Jupyter Lab toolbar. You will see the RGB light on the robotic arm expansion board cycle through red, green, and blue every 0.5 seconds.

To exit, click the stop button on the toolbar.