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7/23/22, 9:41 PM Grove - Chainable RGB LED - Seeed Wiki
https://wiki.seeedstudio.com/Grove-Chainable_RGB_LED/ 22/29
62
63 # Now must send the 3 colors
64 self.sendByte(blue)
65 self.sendByte(green)
66 self.sendByte(red)
67
68 def setColorRGB(self, led, red, green, blue):
69 # Send data frame prefix (32x '0')
70 self.sendByte(0x00)
71 self.sendByte(0x00)
72 self.sendByte(0x00)
73 self.sendByte(0x00)
74
75 # Send color data for each one of the leds
76 for i in range(self.__number_of_leds):
77 '''
78 if i == led:
79 _led_state[i*3 + _CL_RED] = red;
80 _led_state[i*3 + _CL_GREEN] = green;
81 _led_state[i*3 + _CL_BLUE] = blue;
82 sendColor(_led_state[i*3 + _CL_RED],
83 _led_state[i*3 + _CL_GREEN],
84 _led_state[i*3 + _CL_BLUE]);
85 '''
86 self.sendColor(red, green, blue)
87
88 # Terminate data frame (32x "0")
89 self.sendByte(0x00)
90 self.sendByte(0x00)
91 self.sendByte(0x00)
92 self.sendByte(0x00)
93
94
95 # Note: Use P9_22(UART2_RXD) and P9_21(UART2_TXD) as GPI
96 # Connect the Grove - Chainable RGB LED to UART Grove po
97 if __name__ == "__main__":
98 rgb_led = ChainableLED(CLK_PIN, DATA_PIN, NUMBER_OF_
99
100 while True:
101 # The first parameter: NUMBER_OF_LEDS - 1; Other
102 rgb_led.setColorRGB(0, 255 , 0 , 0 )