diff --git a/README.rst b/README.rst
index 13d7e1a..ff07739 100644
--- a/README.rst
+++ b/README.rst
@@ -92,6 +92,7 @@ Supported I²C Port Expanders
 - PCF8574 (used by a lot of I²C LCD adapters on Ali Express)
 - MCP23008 (used in Adafruit I²C LCD backpack)
 - MCP23017
+- JHD1804 (with AIP31068L controller, used in Grove - 16x2 LCD)
 
 
 Documentation
@@ -147,6 +148,8 @@ Resources
 - TC2004A-01 Data Sheet: http://www.adafruit.com/datasheets/TC2004A-01.pdf
 - HD44780U Data Sheet: http://www.adafruit.com/datasheets/HD44780.pdf
 - ST7066 Data Sheet: https://www.sparkfun.com/datasheets/LCD/st7066.pdf
+- JHD1804 Data Sheet: https://raw.githubusercontent.com/SeeedDocument/Grove-16x2_LCD_Series/master/res/JDH_1804_Datasheet.pdf
+- AIP31068L Data Sheet: https://www.orientdisplay.com/wp-content/uploads/2022/08/AIP31068L.pdf
 
 
 License
diff --git a/RPLCD/i2c.py b/RPLCD/i2c.py
index 6ff5de8..08cf249 100644
--- a/RPLCD/i2c.py
+++ b/RPLCD/i2c.py
@@ -128,7 +128,7 @@ def __init__(self, i2c_expander, address, expander_params=None, port=1,
         self._port = port
 
         # Set i2c expander, 'PCF8574', 'MCP23008' and 'MCP23017' are supported.
-        if i2c_expander in ['PCF8574', 'MCP23008', 'MCP23017']:
+        if i2c_expander in ['PCF8574', 'MCP23008', 'MCP23017', "JHD1804"]:
             self._i2c_expander = i2c_expander
         else:
             raise NotImplementedError('I2C expander "%s" is not supported.' % i2c_expander)
@@ -230,6 +230,9 @@ def _send_data(self, value):
             self._mcp_data |= MCP230XX_RS
             self._pulse_data(value >> 4)
             self._pulse_data(value & 0x0F)
+        elif self._i2c_expander == 'JHD1804':
+            self.bus.write_byte_data(self._address, 0xC0, value)
+            c.usleep(100)
 
     def _send_instruction(self, value):
         if self._i2c_expander == 'PCF8574':
@@ -243,6 +246,9 @@ def _send_instruction(self, value):
             self._mcp_data &= ~MCP230XX_RS
             self._pulse_data(value >> 4)
             self._pulse_data(value & 0x0F)
+        elif self._i2c_expander == 'JHD1804':
+            self.bus.write_byte_data(self._address, 0x80, value)
+            c.usleep(100)
 
     def _pulse_data(self, value):
         """Pulse the `enable` flag to process value."""
diff --git a/RPLCD/lcd.py b/RPLCD/lcd.py
index 83f8b95..97fb8f9 100644
--- a/RPLCD/lcd.py
+++ b/RPLCD/lcd.py
@@ -94,24 +94,25 @@ def __init__(self, cols=20, rows=4, dotsize=8, charmap='A02', auto_linebreaks=Tr
         self._init_connection()
 
         # Choose 4 or 8 bit mode
-        if self.data_bus_mode == c.LCD_4BITMODE:
-            # Hitachi manual page 46
-            self.command(0x03)
-            c.msleep(4.5)
-            self.command(0x03)
-            c.msleep(4.5)
-            self.command(0x03)
-            c.usleep(100)
-            self.command(0x02)
-        elif self.data_bus_mode == c.LCD_8BITMODE:
-            # Hitachi manual page 45
-            self.command(0x30)
-            c.msleep(4.5)
-            self.command(0x30)
-            c.usleep(100)
-            self.command(0x30)
-        else:
-            raise ValueError('Invalid data bus mode: {}'.format(self.data_bus_mode))
+        if self._i2c_expander != 'JHD1804':
+            if self.data_bus_mode == c.LCD_4BITMODE:
+                # Hitachi manual page 46
+                self.command(0x03)
+                c.msleep(4.5)
+                self.command(0x03)
+                c.msleep(4.5)
+                self.command(0x03)
+                c.usleep(100)
+                self.command(0x02)
+            elif self.data_bus_mode == c.LCD_8BITMODE:
+                # Hitachi manual page 45
+                self.command(0x30)
+                c.msleep(4.5)
+                self.command(0x30)
+                c.usleep(100)
+                self.command(0x30)
+            else:
+                raise ValueError('Invalid data bus mode: {}'.format(self.data_bus_mode))
 
         # Write configuration to display
         self.command(c.LCD_FUNCTIONSET | displayfunction)