LCD Display 16x2 Yellow Green Backlight
LCD Display 16x2 Yellow Green Backlight
LCD Display 16x2 Yellow Green Backlight
LCD Display 16x2 Yellow Green Backlight

LCD Display 16x2 Yellow Green Backlight

Displays
LCD030
Part.No: 1602
€4.25
In Stock
Immediate Dispatch
The 1602 LCD Display 16x2 with yellow-green backlight operates at 5V and is ideal for low-power, handheld Arduino projects. Compatible with I2C interface modules for easy wiring. MPN: 1602.

 

The 1602 LCD Display 16x2 with Yellow-Green Backlight (MPN: 1602) is a classic 16-character × 2-line alphanumeric LCD module designed specifically for low-power embedded applications. Operating at a standard 5V logic level, it integrates seamlessly with Arduino UNO, Nano, and Mega boards out of the box — no level shifter required. The warm yellow-green backlight ensures excellent readability in both indoor and moderately lit environments, making it a favourite for handheld devices, sensor readouts, and DIY instrument panels.

Key Features

  • 16×2 Character Display: 32 alphanumeric character slots across 2 rows → sufficient for sensor values, menus, and status messages
  • Yellow-Green Backlight: Classic high-contrast appearance → easy to read in typical indoor lighting conditions
  • 5V Operation: Standard TTL-compatible logic level → direct connection to Arduino without level shifting
  • Low Supply Current (1.5 mA): Minimal logic-side power draw → suitable for battery-powered and handheld applications
  • Wide Input Voltage Tolerance (4.5V–5.5V): Handles minor supply fluctuations → stable operation in real-world power environments
  • I2C Module Compatible: Works with standard 1602 I2C backpack adapters → reduces wiring from ~12 pins down to just 4 (VCC, GND, SDA, SCL)

Pinout & Wiring

PINSymbolDescription
1VSSGround (GND)
2VDDSupply Voltage 5V
3V0Contrast Adjustment (potentiometer)
4RSRegister Select
5RWRead/Write (connect to GND for write-only)
6EEnable signal
7–10DB0–DB3Data bits 0–3 (not used in 4-bit mode)
11–14DB4–DB7Data bits 4–7
15A (LED+)Backlight Anode
16K (LED−)Backlight Cathode (GND)

Wiring note: In 4-bit mode (most common with Arduino), only DB4–DB7 are used along with RS, E, and RW. For simplified wiring, pair this display with an I2C backpack module (e.g., LCD120) to reduce connections to VCC, GND, SDA, and SCL.

Compatibility

  • Arduino UNO / Nano / Mega: Native 5V operation — direct connection, no level shifter needed. Use the LiquidCrystal library (4-bit mode) or LiquidCrystal_I2C library with an I2C adapter.
  • I2C Backpack (LCD120): Fully compatible — attach the I2C module to the rear header pins for plug-and-play I2C control.

Typical Applications

  • Arduino sensor dashboards: Display temperature, humidity, or CO₂ readings in real time on a compact screen
  • Handheld measuring instruments: Low power draw makes it ideal for battery-operated multimeters or data loggers
  • DIY home automation panels: Show system status, time, or network info on a wall-mounted controller
  • Educational projects: Perfect first display for students learning microcontrollers and embedded C/C++
  • Retro-style clocks and counters: The yellow-green backlight gives projects a classic instrument aesthetic

Technical Specifications

Display TypeAlphanumeric LCD, 16×2 characters
Backlight ColorYellow-Green
InterfaceParallel (4-bit / 8-bit); I2C via backpack adapter
Input Voltage Range4.5V – 5.5V
Operation Voltage (LCD)5V
Supply Current1.5 mA
Backlight Forward Current120 mA
Backlight Forward Voltage4.1V – 4.3V
MPN1602

Frequently Asked Questions

Q: Do I need an I2C adapter to use this LCD with Arduino?
A: No — you can connect it directly using the parallel interface (4-bit mode) with 6 digital pins. However, pairing it with an I2C backpack (such as the LCD120 available separately) reduces the wiring significantly to just 4 wires.

Q: Can I use this display with a 3.3V microcontroller like ESP32 or Raspberry Pi?
A: The logic operates at 5V. Direct connection to 3.3V systems may result in unreliable operation. A level shifter or a dedicated I2C adapter with voltage translation is recommended in such cases.

Package Contents: 1× LCD Display 16×2 Yellow-Green Backlight (MPN: 1602)

⚠ Note: The backlight draws up to 120 mA — do not power it directly from an Arduino digital output pin. Always use the 5V supply rail and include a current-limiting resistor on the backlight anode (pin 15) if not using a dedicated driver.
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