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16x2 LCD I2C Interface Adapter
Simplify your LCD projects by eliminating complex wiring. This I2C interface adapter module converts the standard 16-pin parallel connection of a 16x2 LCD into a clean 2-wire I2C communication protocol, freeing up valuable GPIO pins on your Arduino, ESP32, Raspberry Pi, or any microcontroller. Premium electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | I2C LCD Interface Adapter (PCF8574T / PCF8574AT based) |
| Compatible Display | Standard 16x2 and 20x4 Character LCD Modules (HD44780 compatible) |
| Communication Protocol | I2C (Inter-Integrated Circuit) - 2-wire serial |
| Default I2C Address | 0x27 (configurable to 0x20-0x27 via solder jumpers) |
| Operating Voltage | 5V DC |
| Pin Connections to MCU | VCC, GND, SDA, SCL (4 pins only) |
| LCD Connection | Standard 16-pin header (solders directly onto LCD module) |
| Contrast Adjustment | Onboard potentiometer (blue trim pot) |
| Backlight Control | Jumper-selectable on/off; also controllable via software |
| Board Dimensions | Approx. 42mm x 19mm |
| Logic IC | PCF8574T 8-bit I/O expander |
| Connector Type | 4-pin male header for I2C bus; 16-pin male header for LCD |
| Daisy-Chainable | Yes - up to 8 modules on same I2C bus with different addresses |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Reduces wiring from 12+ pins to just 4: Connect VCC, GND, SDA, and SCL - that's it. No more tangled jumper wires across your breadboard.
- Onboard contrast potentiometer: Easily adjust display contrast with the blue trim pot - no external potentiometer or resistor needed.
- Backlight control: Hardware jumper for on/off and software-level backlight control through your code.
- Configurable I2C address: Three solder-bridge jumpers (A0, A1, A2) allow you to set addresses from 0x20 to 0x27, enabling up to 8 LCDs on a single I2C bus.
- Direct solder/plug-in design: The 16-pin header solders directly onto the back of any standard HD44780-compatible LCD module for a compact, integrated assembly.
- Wide microcontroller compatibility: Works seamlessly with Arduino Uno, Mega, Nano, ESP8266, ESP32, STM32, Raspberry Pi (with level shifting), and more.
- Well-supported libraries: Extensive library support including LiquidCrystal_I2C for Arduino IDE and compatible frameworks like PlatformIO and MicroPython.
Why Choose This?
- 100% authentic from trusted suppliers - no counterfeit ICs or substandard soldering
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most of India
- Expert technical support included - get help with wiring, code, and troubleshooting
- Perfect companion for any 16x2 or 20x4 LCD project - saves time and GPIO pins
- Ideal for clean, professional-looking builds with minimal wiring
How It Works
The adapter uses the PCF8574T I/O expander IC to translate I2C serial data into the parallel signals that HD44780-based LCD modules require. Your microcontroller sends commands and character data over the two-wire I2C bus (SDA for data, SCL for clock). The PCF8574T receives this data and drives the LCD's data pins (D4-D7), RS, EN, and backlight pin accordingly - all handled transparently by the LiquidCrystal_I2C library.
Wiring Guide
| Adapter Pin | Arduino Uno | ESP32 | Raspberry Pi Pico |
| VCC | 5V | 5V (Vin) | VBUS (5V) |
| GND | GND | GND | GND |
| SDA | A4 | GPIO 21 | GP4 (I2 |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 16x2 LCD I2C Interface Adapter Online in India
Purchase the 16x2 LCD I2C Interface Adapter online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 16x2 LCD I2C Interface Adapter with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 16x2 LCD I2C Interface Adapter at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
```html
16x2 LCD I2C Interface Adapter
Simplify your LCD projects by eliminating complex wiring. This I2C interface adapter module converts the standard 16-pin parallel connection of a 16x2 LCD into a clean 2-wire I2C communication protocol, freeing up valuable GPIO pins on your Arduino, ESP32, Raspberry Pi, or any microcontroller. Premium electronics from The Engineer Store, Bengaluru. Fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Module Type | I2C LCD Interface Adapter (PCF8574T / PCF8574AT based) |
| Compatible Display | Standard 16x2 and 20x4 Character LCD Modules (HD44780 compatible) |
| Communication Protocol | I2C (Inter-Integrated Circuit) - 2-wire serial |
| Default I2C Address | 0x27 (configurable to 0x20-0x27 via solder jumpers) |
| Operating Voltage | 5V DC |
| Pin Connections to MCU | VCC, GND, SDA, SCL (4 pins only) |
| LCD Connection | Standard 16-pin header (solders directly onto LCD module) |
| Contrast Adjustment | Onboard potentiometer (blue trim pot) |
| Backlight Control | Jumper-selectable on/off; also controllable via software |
| Board Dimensions | Approx. 42mm x 19mm |
| Logic IC | PCF8574T 8-bit I/O expander |
| Connector Type | 4-pin male header for I2C bus; 16-pin male header for LCD |
| Daisy-Chainable | Yes - up to 8 modules on same I2C bus with different addresses |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Reduces wiring from 12+ pins to just 4: Connect VCC, GND, SDA, and SCL - that's it. No more tangled jumper wires across your breadboard.
- Onboard contrast potentiometer: Easily adjust display contrast with the blue trim pot - no external potentiometer or resistor needed.
- Backlight control: Hardware jumper for on/off and software-level backlight control through your code.
- Configurable I2C address: Three solder-bridge jumpers (A0, A1, A2) allow you to set addresses from 0x20 to 0x27, enabling up to 8 LCDs on a single I2C bus.
- Direct solder/plug-in design: The 16-pin header solders directly onto the back of any standard HD44780-compatible LCD module for a compact, integrated assembly.
- Wide microcontroller compatibility: Works seamlessly with Arduino Uno, Mega, Nano, ESP8266, ESP32, STM32, Raspberry Pi (with level shifting), and more.
- Well-supported libraries: Extensive library support including LiquidCrystal_I2C for Arduino IDE and compatible frameworks like PlatformIO and MicroPython.
Why Choose This?
- 100% authentic from trusted suppliers - no counterfeit ICs or substandard soldering
- 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most of India
- Expert technical support included - get help with wiring, code, and troubleshooting
- Perfect companion for any 16x2 or 20x4 LCD project - saves time and GPIO pins
- Ideal for clean, professional-looking builds with minimal wiring
How It Works
The adapter uses the PCF8574T I/O expander IC to translate I2C serial data into the parallel signals that HD44780-based LCD modules require. Your microcontroller sends commands and character data over the two-wire I2C bus (SDA for data, SCL for clock). The PCF8574T receives this data and drives the LCD's data pins (D4-D7), RS, EN, and backlight pin accordingly - all handled transparently by the LiquidCrystal_I2C library.
Wiring Guide
| Adapter Pin | Arduino Uno | ESP32 | Raspberry Pi Pico |
| VCC | 5V | 5V (Vin) | VBUS (5V) |
| GND | GND | GND | GND |
| SDA | A4 | GPIO 21 | GP4 (I2 |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 16x2 LCD I2C Interface Adapter Online in India
Purchase the 16x2 LCD I2C Interface Adapter online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 16x2 LCD I2C Interface Adapter with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 16x2 LCD I2C Interface Adapter at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.