How much current does this draw?

Backlight power consumption (typical) : 15mA Supply voltage (typical value) : 3.3V, 5V Module operating current (Max) : 1500uA (Vdd=5V),1250uA (Vdd=3.3V)

Is this random access, i.e. send row/col position and character pairs? Or does it just scroll?

I am using it with a ESP32. To display I send row number,column position with lcd.setCursor(0,0); Rows are 0-3 and columns are 0-19. Does not scroll.

Has anyone used these with a 3.3 volt device like a Raspberry Pi, ARM-based Arduino, or ESP32? How did you wire the backlight?

i used the sketch from printables on 3 an 5 volts to turn on and off back light i used a momentary button

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Hosyond 3pcs I2C IIC 1602 LCD Display Module 16x02 LCD Screen Module for Arduino Raspberry Pi

Product ID: 520204193

Details

Brand
Hosyond
Connectivity Technology
I2C
Included Components
1 x 10pin 3 x
Operating System
Linux
Wireless Communication Standard
802.11b

🔗I2C serial interface for easy wiring

🔵1602 blue backlit display

⚙️Adjustable backlight via built-in potentiometer

€ 30.29

Duties & taxes included

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Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Light up your projects with clarity and style!

TRIPLE PACK VALUE - Get 3 modules plus jumper wires—ideal for multi-project setups or team collaborations.
VERSATILE COMPATIBILITY - Seamlessly integrates with Arduino, Raspberry Pi, STM32, and more for endless IoT innovation.
PLUG PLAY I 2 C INTERFACE - Simplify your wiring with just 4 pins—perfect for Arduino & Raspberry Pi pros.
CRYSTAL CLEAR 16 X 2 DISPLAY - Showcase 32 characters in sharp blue contrast for instant readability.
CUSTOMIZABLE BACKLIGHT BRIGHTNESS - Fine-tune your screen’s glow with the built-in potentiometer for any lighting condition.

The Hosyond 3pcs I2C 1602 LCD Display Module offers a crisp 2-line by 16-character blue backlit screen with an easy-to-use I2C interface. Powered at 5V and featuring an adjustable backlight potentiometer, it’s compatible with popular development boards like Arduino and Raspberry Pi. Perfect for IoT, DIY electronics, and smart building projects, this triple-pack includes jumper wires for quick setup and delivers reliable, high-contrast visual feedback.

Specifications

ASIN	B0BWTFN9WF
Best Sellers Rank	#8,822 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in LCD Character Modules
Brand	Hosyond
Built-In Media	1 x 10pin jumper wires, 3 x I2C 1602 LCD
Compatible Devices	Arduino, Raspberry Pi, Tinkerboard, Nano pi, Banana pi, stm32
Connectivity Technology	I2C
Customer Reviews	4.5 4.5 out of 5 stars (162)
Manufacturer	Hosyond
Mfr Part Number	B003
Model Number	B003
Number of Items	3
Operating System	Linux
Processor Count	1
Total Usb Ports	1
UPC	732214748071
Warranty Description	Hosyond
Wireless Compability	802.11b

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