Note:
This kit ships with a 3D-printed enclosure to make it easier to get started and use the display as a complete device. We welcome your feedback on the enclosure’s fit, finish, and usability, and will use it to guide future improvements！
Note:
If you’re looking for something larger and more colorful, you can also go with the OpenDisplay 7.3" Color Kit.
Feature
- OpenDisplay compatible — works with the OpenDisplay BLE standard, web tools, Home Assistant, and the py-opendisplay Python SDK
- 4.26" black-and-white display at 800×480 pixels — default black and white, with optional 4-gray mode. Images are dithered to the selected palette before upload
- Partial refresh — available in black-and-white mode for faster, lower-power region updates. Not available in 4-gray mode
- Energy-efficient BLE design — the display stays ready for updates while drawing little power on standby. With the built-in 2000 mAh battery and roughly one update every 15 minutes, expect up to two years between charges under typical use
- Ready to go —the firmware and device settings are pre-configured at the factory. If Home Assistant already has Bluetooth coverage, the display can appear automatically when you power it on
| Parameter | Description |
| MCU | Seeed XIAO EN05 driver board (nRF52840) |
| Display | 4.26-inch monochrome ePaper |
| Colors | Black and white (default); optional 4-gray mode |
| Partial Refresh | Supported in black-and-white mode only |
| Resolution | 800 × 480 |
| Battery | 2000 mAh rechargeable Li-ion (Up to 2-year battery life with 15-min updates） |
| Enclosure | White 3D-printed case (replaceable) |
| Connectivity | Bluetooth (No Wi-Fi) |
Custom integrations
For your own software — automation scripts, dashboards, photo tools, or any Python project — use py-opendisplay, the official Python library for OpenDisplay BLE devices. It handles BLE discovery, connection, image encoding for this panel, and uploads over the OpenDisplay protocol.
Battery life
The kit keeps the BLE radio listening in low power rather than using traditional deep sleep, so it is always available for the next update without waiting for a wake-up window.
With the included 2000 mAh battery and roughly one update every 15 minutes, you can expect up to two years between charges under typical use. Actual runtime depends on update frequency, image size, whether you use partial refresh, and ambient temperature. Use the OpenDisplay battery calculator at Opendisplay Battery life calculator to estimate life for your own schedule.
Optional: encryption and recovery
The kit ships with encryption off. You can enable it in the Toolbox if you want to require a key for configuration and image updates. After enabling encryption, the boot screen and QR code show the key.
If factory settings are lost or you need to update firmware manually, use the Toolbox 4.26" Mono Kit preset. Install firmware over USB from Chrome or Edge on a desktop or laptop, then configure over Bluetooth.
Home Assistant integration (GitHub)
| OpenDisplay 4.26" ePaper Device | ×1 |
| USB-C Cable | ×1 |
| 3D-Printed Enclosure with Stand | ×1 |
| HSCODE | 8543709990 |
| USHSCODE | 8517180050 |
| UPC | |
| EUHSCODE | 8517690000 |
| COO | CHINA |
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Shipping rates Australia wide and New Zealand
FAQ:
- How do I estimate shipping for my order?
- Add products in the shopping cart and head to the checkout page to estimate the shipping.
Dispatch time
Unless expressly agreed otherwise with you, we will not commence delivery of an order until we have received cleared payment of the purchase price in full.
All orders placed before 11 am AEST (Monday to Friday) will ordinarily be processed on the same day.
We will endeavour to ship the Products by the applicable time indicated on the website, but all times are indicative only. All shipping times are dispatch times only, and actual delivery dates will depend on the shipping method chosen, delivery address and delivery service provider.
Note- Please make a note during purchase if you require any item urgently. However we cannot guarantee that we will be able to comply with any request.
*Go to Australia post delivery time calculation to get various Australia post service in your area please use our shipping postcode Thomastown, 3074 as the "from" address - https://auspost.com.au/parcels-mail/delivery-times.html?ilink=tools-open-deliv-times.
We ship all products throughout mainland Australia, Tasmania and New Zealand - Including Darwin, Melbourne, Sydney, Tasmania, Adelaide, Brisbane, Perth, all metro and regional areas but do not deliver to areas in Australia where the Australia Post delivery network is not available.
Check Express shipping delivery coverage area at - http://auspost.com.au/parcels-mail/delivery-areas.html
Receipt of deliveries
Deliveries to post office boxes are not permitted where delivery is by courier. If delivery is by courier and nobody is available at the delivery address to accept delivery when delivery is attempted then the courier may either:
- leave the relevant parcel at the unattended address (the courier will do so if specified in your delivery requirements); or
- re-attempt delivery at a later time or date, in which case we may charge you an additional re-delivery fee.
Note that if a delivery is left unattended at the shipping address and is subsequently stolen then the theft is your responsibility, not ours.
Payment & Security
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