DFRobot I2C / TWI 4x20 LCD Module
Description
- Cool LCD display with a high speed I2C serial bus
- Number of characters: 20 characters x 4 Lines
- Compatible with both Gadgeteer, Arduino DUE and Arduino UNO/Mega
- Blue LED backlight with white char color
The DFRobot I2C / TWI 4x20 LCD Module is compatible with Gadgeteer and features a cool LCD display with a high speed I2C serial bus. With the limited pin resources, your project may be out of resources using normal LCD shield. The LCD display is a 4x20 character STN white display with a blue LED backlight. With this I2C interface LCD module, you only need 2 lines (I2C) to display the information. Fantastic for Arduino based project. This board is able to be powered by 5V or 3.3V which make it compatible with both Gadgeteer, Arduino DUE 3.3V system and standard Arduino UNO/Mega 5V system.

- Size: 98 x 60 x 24mm
ZIP File
- I2C Address: 0x20-0x27 (0x20 default)
- Interface: IIC/TWI x1, IDC10 x2
- View direction: Wide viewing angle
- Dot size: 0.55 x 0.55mm
- Dot pitch: 0.60 x 0.60mm
- Character size: 2.96 x 4.75mm
- Character pitch: 3.55 x 5.35mm
I have purchased several of these displays with I2C, I find them easy to write to and only need two wires!
J'ai acheté plusieurs de ces écrans avec I2C, je les trouve faciles à écrire et je n'ai besoin que de deux fils!
Very easy to connect thanks to its I2C interface, it was operational less than 5 minutes after receipt of the package
Very good product delivered on time. Only question to which I did not find an answer in the datasheets .. What is the type of the output connector (4 pins) please ?? Thank you in advance ! -------------------------------------------------- -------------------------------------------------- ---------- Our technical team will contact you soon to answer your question.
Très bon produit livré en temps et en heure. Seule question à laquelle je n'ai pas trouvé de réponse dans les datasheets.. Quel est le type du connecteur de sortie (4 pins) svp ?? Merci d'avance ! -------------------------------------------------------------------------------------------------------------- Notre équipe technique vous contactera bientôt pour répondre à votre question.
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Refund Policy
If you are not satisfied with a product purchased from the Site, you may request a return within 30 days from the delivery date, unless the product is listed under the Return Exceptions below or is subject to specific return conditions noted on the product page.
This return policy also applies, as a minimum standard, to products sold and fulfilled by third-party vendors through the Marketplace.
Please review the Return Conditions, Return Exceptions and the process on How to Request a Return Authorization (RA) before initiating a return request.
Returns under this policy concern non-defective products. In the case of a confirmed manufacturing defect, remedies are handled under the Warranty terms, at the Vendor's discretion. See the Warranty section.
Return Conditions
To qualify for a refund under the 30-day return policy, all of the following conditions must be met:
- A valid Return Authorization (RA) number must be obtained prior to returning the product. Returns without an RA number will be refused.
- The RA number is valid for 30 days. The returned item must be received within that period.
- The RA number must be included with the return.
- Products must be returned in unused, unmodified condition (e.g., no scratches, alterations, missing parts, or signs of installation/use) and in their original packaging, suitable for resale.
- Shipping fees are non-refundable. Return shipping costs are the responsibility of the customer, except in cases of a product confirmed defective through RobotShop's troubleshooting process or of a verified shipping error by RobotShop.
- Refunds are processed within 7 days after receipt and inspection of the returned item.
- A $100 cleaning fee may apply to domestic robots returned in used or unclean condition.
- A 20% restocking fee may apply to large-quantity returns of items ordered specifically for the customer from the manufacturer or not part of RobotShop's standard inventory.
Return Exceptions
The following products are not eligible for return or refund under this policy:
- Used, damaged, or modified products — Items that show signs of use, wear, or alteration, making them unsuitable for resale.
- Consumables — Use and wear-and-tear components, altered or depleted through use (e.g., batteries, belts, brushes, gears, filament, tires, disposable bags, lubricants, greases, waxes, etc.). Not eligible for return once opened or used.
- Perishables — Goods liable to deteriorate or expire rapidly. Not eligible for return.
- Sealed goods (health or hygiene) — Items sealed for health-protection or hygiene reasons (e.g., masks, gloves, odor-absorbing products). Not eligible for return once unsealed.
- Build-it-yourself products and items requiring customer assembly — Including robots & kits, robot parts, and other products requiring assembly or soldering. Not eligible for return once assembled, soldered, or installed.
- Digital Goods, Software, and Apps — Final sale only, due to licensing restrictions.
- Clearance Items — Products identified as clearance or final sale, including end-of-life or discontinued items.
- Custom-made, personalized, or special-order items — Products manufactured, configured, adapted, or built to the customer's own specifications and requirements.
- On-Demand Items — Standard catalogue products not stocked by RobotShop and ordered specifically to fulfill a customer request.
- Professional & Specialized Equipment — See the Professional & Specialized Equipment Warranty page and Professional & Institutional Buyers (B2B) section in the Terms & Conditions.
How to Request a Return Authorization (RA)
While the same return policy applies, these orders require a separate contact process for returns.
- RobotShop Fulfilled Orders → submit a support ticket from your account under My Support Tickets.
- Marketplace Vendor Orders → submit a ticket from your account under My Marketplace Tickets to contact the vendor directly.
Note: Marketplace vendor products are normally labelled with SKUs starting with RM, and identified on the product page with the mention "Sold and fulfilled by [Vendor Name]".