1602 Serial Character LCD, 3.3 V I2C and SPI

This is a 16x2 character LCD with a difference: it doesn't need a 5 V supply to light the screen. The I2C and SPI interface is built in, so you don't need lots of wires, either.

Features and specifications:

• Driver IC: AIP31068L
• 16x2 character display
• White characters with blue backlight
• Comes with both I2C and SPI interface
• I2C address: 0x3E, or 62 (decimal)
• I2C: 16-bit, 1 control byte + 1 data byte
• SPI: 9-bit
• Voltage supply: 3.3VDC
• Outline dimension: 80x36x13.0mm
• Display area: 64.5x14.5mm

Note: This LCD only needs 3.3V to work properly. Please DO NOT connect to 5V output.

Packing list:

• 1 x 3V3 I2C and SPI 1602 Serial Character LCD

Resources:

• LCM1602-14 LCD Library for Pi Pico (MicroPython), GitHub
• LCM1602-14 LCD Library for Arduino, GitHub
• LCM1602-14 LCD Extension for Micro: Bit (MakeCode), GitHub
• 3.3V Serial LCD with Raspberry Pi Pico via SPI or I2C, Raspberry Pi Pico Cytron Tutorial
• Displaying Telegram Message on 3.3V Serial LCD using NodeMCU ESP8266, using Arduino library on ESP8266
• 3.3V Serial Character LCD Display with micro:bit via I2C, with the extension from makecode.
• Datasheet (mix of English and Mandarin)

Pin assignment:

• Vss: Ground (0V)
• VDD: Supply voltage for logic, 3.3VDC
• CS: Chip select pin.
  • ”L”: 3-Line Interface
  • “open”: I2C Interface
• PSB: Parallel/serial select pin
  • ”H”: I2C Interface
  • ”L”: 3-Line Interface
• SCLK: Serial clock
• SDA: Serial data input