KEY FEATURES White characters on blue backlight 16×2 character LCD Integrated I2C backpack (PCF8574) for simple 4-wire communication Onboard potentiometer for contrast adjustment Pre-assembled — I2C module is soldered to the LCD Compatible with Arduino, Raspberry Pi, ODROID boards, ESP32/ESP8266, and most other 5V I2C microcontrollers / SBCs INCLUDES (1) 16x2 LCD module and LCD I2C interface module (pre-assembled) SPECIFICATIONS Display format: 16 characters × 2 lines Controller: HD44780 compatible Character matrix: 5 × 8 dots Interface: I2C (typically PCF8574) Operating voltage: 5V Typical I2C address: 0x27 or 0x3F (scan to confirm) Pinout: VCC, GND, SDA, SCL Approximate dimensions: 80 × 36 mm NOTES Jumper wires required, but not included, for connecting to breadboard, SBC or microcontroller The I2C address can vary between modules. Use an I2C scanner sketch to identify the correct address before use. Power the module from a 5V supply for reliable operation and full backlight brightness. LINKS Arduino Tutorial (recommended): https://lastminuteengineers.com/i2c-lcd-arduino-tutorial/ Raspberry Pi Setup: https://www.circuitbasics.com/raspberry-pi-i2c-lcd-set-up-and-programming/ ESP32 / ESP8266 Guide: https://randomnerdtutorials.com/esp32-esp8266-i2c-lcd-arduino-ide/ ODROID-C2 Example: https://wiki.odroid.com/odroid-c2/application_note/gpio/16x2lcd_c2 ODROID-GO Arduino Example (existing): https://wiki.odroid.com/odroid_go/arduino/09_16x2lcd_i2c#hardware_setup Warranty is valid for two weeks, starting upon date of receipt.
