LCD I2C Module IIC/I2C Serial Interface Adapter

The LCD I2C Module PCF8574 is a small circuit board that allows you to connect a standard Alphanumeric LCD displays 1602 & 2004 to an I2C bus. This means that you can control the LCD display with only two wires, SDA and SCL. The PCF8574 is an I2C slave device, so it has a unique address on the I2C bus. This address can set using three jumpers on the board.

The LCD I2C Module PCF8574 is compatible with most 16X2 and 20X4 character LCD displays that use the HD44780 controller. The board also has a potentiometer for adjusting the contrast of the LCD display.

LCD I2C Module PCF8574 can operate with an input voltage of 2.5 to 6 volts. The typical input voltage is 5 volts. The module has a regulator that converts the input voltage to 5 volts for the LCD display.

The PCF8574T IC chip on the module is an I2C slave device. This means that it can receive commands from a master device, such as an Arduino. The module has a 7-bit address that can set using jumpers on the board. The LCD I2C Module PCF8574 works on the I2C (Inter-Integrated Circuit) communication protocol. This protocol allows two devices to communicate with each other using only two wires: SDA (Serial Data) and SCL (Serial Clock).

The module also has a potentiometer that is used to adjust the contrast of the LCD display. The contrast is the difference between the light and dark pixels on the display. By adjusting the potentiometer, you can make the dark pixels darker and the light pixels lighter.

The LCD I2C Module PCF8574 is a great way to add a display to a project without having to use a lot of pins on a microcontroller. It is a relatively simple device to use, and it can control by using the I2C communication protocol.

Features : –

An IIC/I2C Serial Interface Adapter is a small circuit board that allows you to connect a standard LCD display to an I2C bus. This means that you can control the LCD display with only two wires, SDA and SCL. The IIC/I2C Serial Interface Adapter uses the PCF8574T IC chip which converts I2C serial data to parallel data for the LCD display. IIC/I2C Serial Interface Adapters offer a number of benefits, including:

• Reduced board space: IIC/I2C Serial Interface Adapters only require two wires to communicate with other devices, which can save on board space.
• Simplified circuit design: IIC/I2C Serial Interface Adapters simplify the circuit design process by providing a ready-made solution for connecting I2C devices.
• Ease of use: IIC/I2C Serial Interface Adapters are easy to use and can connect to a variety of microcontrollers.
• Wide range of applications: IIC/I2C Serial Interface Adapters can use in a wide range of applications, including industrial automation, home automation, and consumer electronics.

Here are some of the specific benefits of using an IIC/I2C Serial Interface Adapter:

• Reduced pin usage: IIC/I2C Serial Interface Adapters only require two pins to communicate with other devices, which can save on pin usage on a microcontroller. This is especially beneficial for microcontrollers with a limited number of pins.
• Simplified addressing: IIC/I2C Serial Interface Adapters use a simple 7-bit addressing scheme, which makes it easy to identify and communicate with multiple devices on the same bus.
• Flexible configuration: IIC/I2C Serial Interface Adapters can configure to use a variety of different settings, such as the I2C address, the baud rate, and the polarity of the clock signal. This makes them a versatile tool for a variety of applications.

LCD I2C Module Specifications : –

The input voltage of the module must be within the range of 2.5 to 6 volts. The power supply must be able to provide enough current to the module. The typical current draw of the module is 100 milliamps. The power supply must be compatible with the microcontroller that you are using.

The specifications of an I2C Serial Interface Adapter vary depending on the specific module, but some common specifications include:

• Operating voltage: 5V
• Communication protocol: I2C
• Address: 7-bit
• Data transfer rate: 100 kHz
• Number of pins: 4
• Dimensions: 20mm x 15mm

LCD I2C Module Pin Descriptions : –

Here are the pin descriptions for the I2C Interface Module PCF8574:

• VCC: This pin is the power supply pin for the module. It must be connected to a 5V supply.
• GND: This pin is the ground pin for the module. It must be connected to a ground plane or a ground pin on your microcontroller.
• SDA: This pin is the serial data pin for the module. It is used to send and receive data from the module.
• SCL: This pin is the serial clock pin for the module. It is used to synchronize the data transfer between the module and your microcontroller.

LCD I2C Module Applications : –

The potentiometer on the LCD I2C Module PCF8574 is use to adjust the contrast of the LCD display. The contrast is the difference between the light and dark pixels on the display. By adjusting the potentiometer, you can make the dark pixels darker and the light pixels lighter.

Here are some of the applications of I2C for 16X2 & 20X4LCD applications:

• Industrial automation: I2C can use to display status information on an LCD display in an industrial setting.
• Home automation: I2C can use to display the temperature or humidity in a home automation system.
• Consumer electronics: I2C can use to display the time or date on a consumer electronic device.

Package : –

1 x LCD I2C Module

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