LCD1604 (5V Blue Backlight)
16×4 character LCD module, white characters on blue backlight, parallel interface, 5 V logic.
Pinout
- VSS1
Ground pin from Waveshare product-page interface table
Type · GroundVoltage · 0V (GND) - VCC2
Logic-circuit power supply from Waveshare product-page interface table
Type · PowerVoltage · +5V - VEE3
LCD contrast adjustment input from Waveshare product-page interface table
Type · AnalogVoltage · contrast adjustment - RS4
Instruction/data register selection, RS=0 instruction register and RS=1 data register per Waveshare product-page table
Type · GPIO - RW5
Read/write selection, R/W=0 register write and R/W=1 register read per Waveshare product-page table
Type · GPIO - E6
Enable signal from Waveshare product-page interface table
Type · GPIO - DB07
8-bit data input/output line DB0 from Waveshare product-page interface table
Type · GPIO - DB18
8-bit data input/output line DB1 from Waveshare product-page interface table
Type · GPIO - DB29
8-bit data input/output line DB2 from Waveshare product-page interface table
Type · GPIO - DB310
8-bit data input/output line DB3 from Waveshare product-page interface table
Type · GPIO - DB411
8-bit data input/output line DB4 from Waveshare product-page interface table
Type · GPIO - DB512
8-bit data input/output line DB5 from Waveshare product-page interface table
Type · GPIO - DB613
8-bit data input/output line DB6 from Waveshare product-page interface table
Type · GPIO - DB714
8-bit data input/output line DB7 from Waveshare product-page interface table
Type · GPIO - LED+15
LED backlight positive supply from Waveshare product-page interface table
Type · PowerVoltage · +5V - LED-16
LED backlight negative supply from Waveshare product-page interface table
Type · GroundVoltage · 0V
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VSS | 1 | Ground | Ground pin from Waveshare product-page interface table | 0V (GND) |
| VCC | 2 | Power | Logic-circuit power supply from Waveshare product-page interface table | +5V |
| VEE | 3 | Analog | LCD contrast adjustment input from Waveshare product-page interface table | contrast adjustment |
| RS | 4 | GPIO | Instruction/data register selection, RS=0 instruction register and RS=1 data register per Waveshare product-page table | |
| RW | 5 | GPIO | Read/write selection, R/W=0 register write and R/W=1 register read per Waveshare product-page table | |
| E | 6 | GPIO | Enable signal from Waveshare product-page interface table | |
| DB0 | 7 | GPIO | 8-bit data input/output line DB0 from Waveshare product-page interface table | |
| DB1 | 8 | GPIO | 8-bit data input/output line DB1 from Waveshare product-page interface table | |
| DB2 | 9 | GPIO | 8-bit data input/output line DB2 from Waveshare product-page interface table | |
| DB3 | 10 | GPIO | 8-bit data input/output line DB3 from Waveshare product-page interface table | |
| DB4 | 11 | GPIO | 8-bit data input/output line DB4 from Waveshare product-page interface table | |
| DB5 | 12 | GPIO | 8-bit data input/output line DB5 from Waveshare product-page interface table | |
| DB6 | 13 | GPIO | 8-bit data input/output line DB6 from Waveshare product-page interface table | |
| DB7 | 14 | GPIO | 8-bit data input/output line DB7 from Waveshare product-page interface table | |
| LED+ | 15 | Power | LED backlight positive supply from Waveshare product-page interface table | +5V |
| LED- | 16 | Ground | LED backlight negative supply from Waveshare product-page interface table | 0V |
Pin details
16 connections- VSS1
Ground pin from Waveshare product-page interface table
GroundVoltage · 0V (GND) - VCC2
Logic-circuit power supply from Waveshare product-page interface table
PowerVoltage · +5V - VEE3
LCD contrast adjustment input from Waveshare product-page interface table
AnalogVoltage · contrast adjustment - RS4
Instruction/data register selection, RS=0 instruction register and RS=1 data register per Waveshare product-page table
GPIO - RW5
Read/write selection, R/W=0 register write and R/W=1 register read per Waveshare product-page table
GPIO - E6
Enable signal from Waveshare product-page interface table
GPIO - DB07
8-bit data input/output line DB0 from Waveshare product-page interface table
GPIO - DB18
8-bit data input/output line DB1 from Waveshare product-page interface table
GPIO - DB29
8-bit data input/output line DB2 from Waveshare product-page interface table
GPIO - DB310
8-bit data input/output line DB3 from Waveshare product-page interface table
GPIO - DB411
8-bit data input/output line DB4 from Waveshare product-page interface table
GPIO - DB512
8-bit data input/output line DB5 from Waveshare product-page interface table
GPIO - DB613
8-bit data input/output line DB6 from Waveshare product-page interface table
GPIO - DB714
8-bit data input/output line DB7 from Waveshare product-page interface table
GPIO - LED+15
LED backlight positive supply from Waveshare product-page interface table
PowerVoltage · +5V - LED-16
LED backlight negative supply from Waveshare product-page interface table
GroundVoltage · 0V
Start wiring
SPI · I2C · 3.3 V · 3.3 – 5 V · Breakout
Adafruit describes product 398 as a 16x2 RGB backlight LCD using digital pins for LCD control and PWM pins for the backlight; the product…
Module pins: VCC, LED+, VSS, LED-. Schematik maps them to your board in the app.
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