GeeekPi IIC I2C TWI Serial LCD 2004 20x4 Display Module with I2C Interface Adapter Blue Backlight for Raspberry Pi Arduino STM32 DIY Maker Project BPI Tinker Board Electrical IoT Internet of Things

GeeekPi IIC I2C TWI Serial LCD 2004 20x4 Display Module with I2C Interface Adapter Blue Backlight for Raspberry Pi Arduino STM32 DIY Maker Project BPI Tinker Board Electrical IoT Internet of Things

Q: What is the overall size of this unit?

98 x 60 PCA 97 x 40 outside LCD 76 x 26 LCD lens 20.5 overall thickness in mm

Q: What is the power consumption, the wiki lists it as "low power consumption" what is the actual current usage?

it is about 20mA~40mA when flash the screen with backlight .

Q: What is the i2c interface chip in use? the pictures seem to show a pcf8574, but that requires an address of 0x20-27, not 0x3f.

The address of the new board is 0x3f, and that of the old version is 0x27. There are code examples on the wiki, which can be changed as needed: https://wiki.52pi.com/index.php?title=Z-0235#How_to_test_it

Q: is the backlight software controllable or jumper wire only?

It can be lighted by short-circuiting the jumper, and the backlight intensity can be controlled by the protentiometer at the back

4.7/5

Product ID: 316474750

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⚡High-Speed Serial Communication

🔗I2C Interface for Simplified Wiring

🔵20x4 Blue Backlit Display

Frequently Bought Together

GeeekPi IIC I2C TWI Serial LCD 2004 20x4 Display Module with I2C Interface Adapter Blue Backlight for Raspberry Pi Arduino STM32 DIY Maker Project BPI Tinker Board Electrical IoT Internet of Things

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Arduino Mega 2560 REV3 [A000067] – ATmega2560, 16MHz, 54 Digital I/O, 16 Analog Inputs, 256KB Flash, USB, Compatible with Arduino IDE for Advanced Projects

Description

🔵 Illuminate your IoT projects with sleek, smart display power!

CRYSTAL CLEAR 20 X 4 DISPLAY - Experience sharp, easy-to-read blue backlit characters that elevate your project’s interface.
LIGHTWEIGHT COMPACT DESIGN - At just 180g and compact dimensions, it fits perfectly into any DIY or professional prototype setup.
MULTI PLATFORM COMPATIBILITY - Seamlessly integrate with popular maker boards like ESP32, BeagleBone Black, and Tinker Board for versatile IoT projects.
PLUG PLAY I 2 C CONNECTIVITY - Simplify your wiring with just two signal lines (SDA & SCL) compatible across Arduino, Raspberry Pi, STM32, and more.
EFFICIENT SERIAL BUS PROTOCOL - Leverage the high-performance I2C bus for synchronized multi-master communication without the clutter.

The GeeekPi IIC I2C TWI Serial LCD 2004 module features a crisp 20x4 blue backlit display with a streamlined I2C interface, enabling fast, efficient communication via just two wires. Compatible with a wide range of development boards including Arduino, Raspberry Pi, STM32, and ESP32, this lightweight and compact display is ideal for professional-grade DIY, IoT, and maker projects seeking clear visual feedback and simplified connectivity.

Specifications

Brand	GeeekPi
Package Dimensions	12.2 x 8.3 x 5.9 cm; 180 g
Item model number	Z-0235-2Pack
Manufacturer	GeeekPi
Hardware Platform	Arduino
Are Batteries Included	No
Item Weight	180 g

Have a Question? See What Others Asked

What is the overall size of this unit?

What is the power consumption, the wiki lists it as "low power consumption" what is the actual current usage?

What is the i2c interface chip in use? the pictures seem to show a pcf8574, but that requires an address of 0x20-27, not 0x3f.

is the backlight software controllable or jumper wire only?

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