Waveshare 4.2" E-Ink Raw Display, 400x300, 3-Color
Supports tri-color display: red, black, white
Operates via SPI with embedded controller
Maintains content without power, no backlight
Accompanies development resources for various platforms
Features ultra-low power consumption
The Waveshare 4.2" E-Ink Raw Display, 400x300, 3-Color is an advanced electronic paper display featuring a resolution of 400x300 pixels. It supports a tri-color display in red, black, and white, making it suitable for a variety of applications such as shelf labeling and industrial instruments. The display operates via an SPI interface and includes an embedded controller, ensuring seamless integration into various systems.
This E-Ink display is renowned for its ultra-low power consumption, as power is primarily required only during the refreshing process. It maintains the last displayed content even when powered down, thanks to its lack of backlighting. This feature, combined with a wide viewing angle, ensures clear visibility without the need for continuous power.
The display is accompanied by comprehensive development resources, including a manual and driver board schematics, which facilitate its use with platforms such as Raspberry Pi, Jetson Nano, Arduino, and STM32. Its robust design and efficient power usage make it an ideal choice for developers seeking a reliable and versatile display solution.
1x Waveshare 4.2" E-Ink Raw Display, 400x300, 3-Color
Outline dimensions: 91.00 x 77.00 x 1.05 mm
Display size: 84.8 x 63.6 mm
Operating voltage: 3.3V
Interface: 3-wire SPI, 4-wire SPI
Dot pitch: 0.212 × 0.212
Resolution: 400 × 300
Display colors: red, black, white
Grey level: 2
Full refresh time: 15 seconds
Refresh power: 26.4mW (typical)
Standby power: less than 0.017mW
Viewing angle: greater than 170°
No backlight; retains last content display even when powered down
Ultra-low power consumption; power needed only for refreshing
Includes development resources and manual (driver board schematic, examples for Raspberry Pi/Jetson Nano/Arduino/STM32)
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.
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.
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]".
