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SunFounder IIC I2C TWI 1602 Serial LCD Module Display Compatible with Arduino R3 Mega 2560 16x2

SunFounder IIC I2C TWI 1602 Serial LCD Module Display Compatible with Arduino R3 Mega 2560 16x2

Q: It it possible to change the address of the lcd to have multiple lcd on the same bus?

To further expand on Wes' answer (which is excellent!), you can have up to eight (8) on the same bus, per the chip datasheets. The chips have a portion of the address hard-code (which cannot be changed) and the three remaining address lines (A0, A1, and A2) can be jumpered to ground to set seven (7) other addresses - the 8th being no jumpers. IF you happen to get one with an 8574 chip and another with 8574A or 8574T, then you could potentially have up to 16 modules on the same bus as the A and T versions use a different hard-coded address than the 8574.

Q: Has anyone run this display on 3.3 volts successfully? I'd like to use it on an 8266-12E to display the ip address.

It works on 3.3V, but just barely: it's unusably dim. I changed the supply voltage to 5V and was able to successfully drive it with 3.3V-level I2C signals, although the PCF8574 data sheet says that the minimum Vih level is 0.7 * Vcc = 3.5V. My scope says that the signals are rising to about 3.8V, so there must be some kind of pull-up to 5V on the I2C backpack board. I don't want to rely on that, so for my final design I'll use a PCA9306 I2C level shifter.

Q: Do these come with an I2C backpack? I just ordered some of these and they came with no backpack in the package.

There are several product options on the page, some have I2C, some don't. If you chose one that has I2C, it should come with an I2C backpack.

Q: Does this work for the old raspberry pis that have a 26 pin gpio?

This module uses an i2c serial interface rather than discrete gpio pins. If your rpi has an i2c, it should work.

Product ID: 531797983

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Details

Brand
SunFounder
Model Name
IIC I2C TWI
Memory Storage Capacity
1 TB
Connectivity Technology
I2C
Wireless Communication Standard
802.11b

⚡5V operation - low power, high efficiency

📏16x2 character display - compact clarity

🔌I2C serial interface - minimal wiring

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Description

📟 Elevate your Arduino projects with sleek, minimalistic display power!

POWER SMART DESIGN - Operates at a stable 5V, balancing performance with energy efficiency.
COMPACT LIGHTWEIGHT - Slim 12.45 x 4.32 x 1.02 cm frame weighing just 40g fits effortlessly into any project.
CRYSTAL CLEAR DISPLAY - 16x2 LCD screen delivers sharp, easy-to-read characters for seamless data visualization.
STREAMLINED CONNECTIVITY - Only 2 wires (SDA & SCL) free up your Arduino pins for more innovation.
PLUG PLAY COMPATIBILITY - Perfectly engineered for Arduino R3 Mega 2560, ensuring hassle-free integration.

The SunFounder IIC I2C TWI 1602 Serial LCD Module is a compact 16x2 character display designed for Arduino R3 Mega 2560. Featuring an I2C interface, it drastically reduces wiring complexity by using only two data lines (SDA and SCL), freeing up valuable microcontroller pins. Operating at 5 volts and weighing just 40 grams, this module offers efficient, clear visual output for enhanced man-machine interaction in embedded projects.

Specifications

Brand	SunFounder
Manufacturer	sunfounder
Model	TS0351
Model Name	IIC I2C TWI 1602
Product Dimensions	12.45 x 4.32 x 1.02 cm; 40 g
Item model number	TS0351
Memory Storage Capacity	1 TB
RAM memory maximum size	1 GB
Processor Count	1
Hardware Interface	3.5-Inch Floppy
Graphics Card Description	Integrated
Compatible Devices	Arduino R3 Mega 2560
Special Features	I2c
Standing screen display size	1 Centimetres
Display Type	Lcd
Voltage	5 Volts
Batteries Included	No
Batteries Required	No
Wireless Type	802.11b
Connector Type	I2C
Device interface - primary	Buttons, Keyboard, Mouse
Includes remote	No
Manufacturer	sunfounder
Item Weight	40 g

Have a Question? See What Others Asked

It it possible to change the address of the lcd to have multiple lcd on the same bus?

Has anyone run this display on 3.3 volts successfully? I'd like to use it on an 8266-12E to display the ip address.

Do these come with an I2C backpack? I just ordered some of these and they came with no backpack in the package.

Does this work for the old raspberry pis that have a 26 pin gpio?

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