LCD1602 (5V Blue Backlight)
16×2 character LCD module, white characters on blue backlight, parallel interface, 5 V logic.
Pinout
- VSS1
ground
Type · Ground - VDD2
logic power
Type · PowerVoltage · 5V or module-specific - VO3
contrast input
Type · Analog - RS4
register select
Type · GPIO - RW5
read/write select
Type · GPIO - E6
enable
Type · GPIO - D07
data bit 0
Type · GPIO - D18
data bit 1
Type · GPIO - D29
data bit 2
Type · GPIO - D310
data bit 3
Type · GPIO - D411
data bit 4
Type · GPIO - D512
data bit 5
Type · GPIO - D613
data bit 6
Type · GPIO - D714
data bit 7
Type · GPIO - A15
LED anode
Type · Power - K16
LED cathode
Type · Ground
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VSS | 1 | Ground | ground | |
| VDD | 2 | Power | logic power | 5V or module-specific |
| VO | 3 | Analog | contrast input | |
| RS | 4 | GPIO | register select | |
| RW | 5 | GPIO | read/write select | |
| E | 6 | GPIO | enable | |
| D0 | 7 | GPIO | data bit 0 | |
| D1 | 8 | GPIO | data bit 1 | |
| D2 | 9 | GPIO | data bit 2 | |
| D3 | 10 | GPIO | data bit 3 | |
| D4 | 11 | GPIO | data bit 4 | |
| D5 | 12 | GPIO | data bit 5 | |
| D6 | 13 | GPIO | data bit 6 | |
| D7 | 14 | GPIO | data bit 7 | |
| A | 15 | Power | LED anode | |
| K | 16 | Ground | LED cathode |
Pin details
16 connections- VSS1
ground
Ground - VDD2
logic power
PowerVoltage · 5V or module-specific - VO3
contrast input
Analog - RS4
register select
GPIO - RW5
read/write select
GPIO - E6
enable
GPIO - D07
data bit 0
GPIO - D18
data bit 1
GPIO - D29
data bit 2
GPIO - D310
data bit 3
GPIO - D411
data bit 4
GPIO - D512
data bit 5
GPIO - D613
data bit 6
GPIO - D714
data bit 7
GPIO - A15
LED anode
Power - K16
LED cathode
Ground
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: VDD, A, VSS, K, VO. Schematik maps them to your board in the app.
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