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โมดูล PCF8574T ใช้สำหรับลดขา LCD ให้เหลือเพียง 2 pin (I2C bus) ทำให้ประหยัดขาสัญญาณและลดความซับซ้อนของวงจรลงได้อีกมาก สามารถใช้ได้ทั้ง LCD แบบ 16 หลัก และ 20 หลัก (1604 / 2004 compatible)

This is another great IIC/I2C/TWI/SPI Serial Interface. As the pin resources of Arduino controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I2C interface module, you will be able to realize data display via only 2 wires. If you already has I2C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for Arduino based project.
 
I2C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself)
the backlight and contrast is adjusted by potentiometer
Come with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable
I2C Address: 0x27 (I2C Address: 0X20~0X27 (the original address is 0X27,you can change it yourself)
 
Specification:
 
Compatible for 1602 LCD and 2004 LCD
Supply voltage: 5V
Weight: 5g
Size: 5.5x2.3x1.4cm
PCF8574T IIC I2C TWI SPI Serial Interface Board Module Port for Arduino LCD 1602 LCD 2004 Display Module
PCF8574T IIC I2C TWI SPI Serial Interface Board Module Port for Arduino LCD 1602 LCD 2004 Display Module
PCF8574T IIC I2C TWI SPI Serial Interface Board Module Port for Arduino LCD 1602 LCD 2004 Display Module
PCF8574T IIC I2C TWI SPI Serial Interface Board Module Port for Arduino LCD 1602 LCD 2004 Display Module
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Every item comes with a 30-day warranty. However, there are certain conditions that apply:

  1. The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).

  2. The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).

  3. The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.

Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:

  1. Provide a detailed description of the damaged item(s).
  2. Mention any tests or experiments conducted by the customer.

Please note that the store reserves the right to make the final decision regarding product replacement or refund.

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Last updatedOct 20, 2025

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Arduino compatible board, Iot, ESP32, ESP8266, Nodemcu, Raspberry pi, micro:bit and etc.
Mobile number : 0831710868
E-mail : paheyisoicus@gmail.com
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