Add I2C address ranges

Author: mcauser

lcd/esp8266_i2c_lcd.py

@@ -5,6 +5,7 @@
 from machine import I2C
 from time import sleep_ms
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 # Defines shifts or masks for the various LCD line attached to the PCF8574

lcd/esp8266_i2c_lcd_test.py

@@ -5,6 +5,7 @@
 from machine import I2C, Pin
 from esp8266_i2c_lcd import I2cLcd
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 def test_main():

lcd/i2c_lcd.py

@@ -4,6 +4,7 @@
 import smbus
 import time
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 # Defines shifts or masks for the various LCD line attached to the PCF8574

lcd/i2c_lcd_test.py

@@ -3,6 +3,7 @@
 from i2c_lcd import I2cLcd
 import time
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 def test_main():

lcd/pyb_i2c_adafruit_lcd.py

@@ -5,6 +5,7 @@
 from pyb import I2C
 from pyb import delay
 
+# The MCP23008 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x20
 
 # MCP23008 Registers

lcd/pyb_i2c_adafruit_lcd_test.py

@@ -3,6 +3,7 @@
 from pyb import I2C, delay, millis
 from pyb_i2c_adafruit_lcd import I2cLcd
 
+# The MCP23008 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x20
 
 def test_main():

lcd/pyb_i2c_lcd.py

@@ -3,6 +3,7 @@
 from lcd_api import LcdApi
 from pyb import I2C, delay
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 # Defines shifts or masks for the various LCD line attached to the PCF8574

lcd/pyb_i2c_lcd_test.py

@@ -3,6 +3,7 @@
 from pyb import I2C, delay, millis
 from lcd_api import LcdApi
 
+# The PCF8574 has a jumper selectable address: 0x20 - 0x27
 DEFAULT_I2C_ADDR = 0x27
 
 def test_main():