pi_i2c_nano_neomatrix_ex1.py

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import smbus
import time
i2c = smbus.SMBus(1) # 注:ラズパイのI2Cポート
#
# command:
#   clear... 0x00
#   show ... 0x01
#   set1 ix,iy,r,g,b
#         ... 0x02  *,*,  *,*,*
#   setn ix,iy,n, r0,g0,b0, ..r(n-1),g(n-1),b(n-1)   n<=8
#         ... 0x03 *,*, *, *,*,*, ..., *,*,*
#
address = 0x30
i2c.write_byte(address,0x00)
cmd=[0x00,0x03, 0xff, 0x00, 0x00]
i2c.write_i2c_block_data(address, 0x02, cmd)
cmd=[0x01,0x02, 0x00, 0xff, 0x00]
i2c.write_i2c_block_data(address, 0x02, cmd)
i2c.write_byte(address,0x01)