Unit EXT.IO2

Example

Control servo rotation and RGB LED illumination

from m5stack import *
from m5ui import *
from uiflow import *
import time
import unit

setScreenColor(0x222222)
ext_io2_0 = unit.get(unit.EXT_IO2, unit.PORTA)

ext_io2_0.init_i2c_address(0x45)
ext_io2_0.set_config_mode(2, 3)
ext_io2_0.set_config_mode(1, 4)
ext_io2_0.write_rgb_led(1, 78, 74, 96)
while True:
  ext_io2_0.write_servo_angle(2, 65)
  print((str('servo angle:') + str((ext_io2_0.read_servo_angle(2)))))
  wait(1)
  ext_io2_0.write_servo_angle(2, 176)
  print((str('servo angle:') + str((ext_io2_0.read_servo_angle(2)))))
  wait(1)
  wait_ms(2)

API

ext_io2_0.init_i2c_address(0x45)

• Initialize EXTIO2 Unit and obtain communication address

print((str('config mode:') + str((ext_io2_0.get_config_mode(0)))))

• Obtain the current configuration mode of a specified channel

print((str('ADC 12bit:') + str((ext_io2_0.read_adc12_pin(0)))))

• Read 12-bit ADC value from a pin

print((str('ADC 8bit:') + str((ext_io2_0.read_adc8_pin(0)))))

• Read 8-bit ADC value from a pin

print((str('digital input:') + str((ext_io2_0.read_input_pin(0)))))

• Read the value of an input pin

print((str('RGB LED:') + str((ext_io2_0.read_rgb_led(0)))))

• Read the RGB LED value of a specified channel

print((str('servo angle:') + str((ext_io2_0.read_servo_angle(0)))))

• Read the servo rotation angle of a specified channel

print((str('servo pulse:') + str((ext_io2_0.read_servo_pulse(0)))))

• Read the pulse width of a specified channel

print((str('version:') + str((ext_io2_0.read_status(0XFE)))))

• Obtain the current device firmware version

ext_io2_0.set_config_mode(0, 0)

• Set the configuration mode of a specific channel

ext_io2_0.set_i2c_address(0x45)

• Reset the I2C address

ext_io2_0.write_output_pin(0, 0)

• Set the digital output pin level

ext_io2_0.write_rgb_led(0, 0, 0, 0)

• Write RGB color value

ext_io2_0.write_servo_angle(0, 0)

• Write angle

ext_io2_0.write_servo_pulse(0, 500)

• Write pulse width