Recommended Free Tools
Seeed Studio’s XIAO 7.5-inch ePaper Panel is a battery-powered, monochrome information display for Home Assistant, ESPHome, Arduino, and TRMNL projects. It combines an 800×480 ePaper screen with a XIAO ESP32-C3 controller, a 2,000mAh rechargeable battery, and a 3D-printed PLA enclosure with stand.
It is best understood as a glanceable status panel—not an Android tablet or interactive smart-home hub. It can show temperatures, weather, calendars, security states, energy data, and automation notifications, but its slow refresh and lack of documented touch hardware make it unsuitable for fast controls, video, or continuously changing dashboards.
As an Amazon Associate I earn from qualifying purchases.
What Seeed launched
The XIAO 7.5-inch ePaper Panel is a maker-oriented embedded display built around Seeed’s XIAO ESP32-C3 board. The ESP32-C3 provides Wi-Fi, Bluetooth Low Energy, and a single-core 32-bit RISC-V processor running at up to 160MHz. It connects to the network, receives data from Home Assistant, renders the display, and manages sleep and wake cycles; it is not a tablet-class computer.
Free tools Windows power users keep installed
One-click scans. No signup required.
Seeed positions the panel for Home Assistant dashboards, weather, calendars, schedules, Arduino projects, and TRMNL-compatible uses. It is supplied with a white 3D-printed PLA enclosure and retractable stand, making it more convenient than assembling a bare ePaper module, controller, battery circuit, and case yourself.
#1 Best Overall
- Built-in ESP32-S3 Controller & SPI Interface - Comes with ESP32-S3 as the main MCU (up to 240 MHz) and standard 3-/4-wire SPI (default 4-wire) for easy integration. Supports the classic e-ink reader feel and responsive development flow
- Ultra-Low Power & Power-Off Retention - This epaper display only consumes power during refresh. Static content stays visible without a continuous power supply, ideal for battery-powered devices, smart labels and always-on displays
- Reflective, Sunlight-Readable - The pure reflection mode means no backlight required; the content remains clearly readable even under strong sunlight. Hard-coated anti-glare surface ensures excellent visibility and durability
- Rich Interfaces & Ready for Development - Includes BAT interface (2.2 V-3.7 V), UART0, GPIO header, back/menu/reset/boot buttons, hard-coated anti-glare surface. Compatible with Arduino IDE, and suitable for DIY makers alike
- High-Resolution e-ink Display - This 2.13″ e-paper display with 122x250 resolution delivers sharp black/white contrast and a wide viewing angle. Provides crisp clarity and a paper-like reading experience for smart tags and DIY devices
Specifications at a glance
| Specification | Detail |
|---|---|
| Display | 7.5-inch monochrome ePaper |
| Resolution | 800×480 |
| Controller | Seeed XIAO ESP32-C3 |
| Battery | 2,000mAh rechargeable lithium-ion |
| Refresh | Partial refresh supported; approximately 2–5 seconds in Seeed’s comparison data |
| Dimensions | 178×131×19mm, according to the current product datasheet |
| Weight | 218g |
| Enclosure | 3D-printed white PLA with stand |
| Operating voltage | 3.3V–5V |
| Software | ESPHome, Arduino, PlatformIO, ESP-IDF, and TRMNL workflows |
The comparison datasheet does not list an SD-card interface, expansion interfaces, or certifications for this model. It also does not document a touchscreen, speaker, microphone, camera, or voice assistant, so buyers should not assume those features are present.
Why ePaper suits Home Assistant
ePaper retains its image without continuously powering a backlight. That makes it useful for an entryway, kitchen, bedroom, office, or utility room where information should remain visible without the energy use of an always-on LCD. It is also designed for ambient-light readability, although viewing angle, lighting, and layout still affect readability.
The strongest applications are relatively stable information:
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware match- Indoor temperature and humidity
- Weather forecasts
- Calendar events and schedules
- Door, window, and alarm status
- Thermostat mode and setpoint
- Household energy consumption and solar generation
- Air-quality readings
- Battery levels
- Automation messages such as “laundry finished”
The trade-off is refresh speed. A full update can take seconds, and frequent updates can cause flashing or ghosting. Layouts should use large text, simple icons, clear state changes, and deliberate refreshes rather than attempting to imitate a continuously animated tablet dashboard.
Rank #2
- ESP32-C3 OLED Development Board With 0.42 Inch OLED Module Ceramic Antenna Wifi Bluetooth ESP32 Supermini Development Board
- ESP32 C3 OLED development board is based on ESP32C3FN4/FH4, which is designed and produced core boards.
- It has a built -in 4M Flash. It has two modes: WiFi and Bluetooth, with a ceramic antenna,Equipped with a 0.42 -inch OLED screen, and supports USB download.
- NOTE:This screen is different from Other 0.42 -inch screen. The starting point of the screen is 12864 (13, 14).Please pay attention before buying, you must not directly replace other 0.42 -inch screens
Home Assistant setup through ESPHome
The documented Home Assistant route is ESPHome. This is not a plug-and-play Lovelace tablet: you must create firmware, configure the display, flash the panel, connect it to Wi-Fi, and then add it to Home Assistant.
Seeed’s product-specific cookbook uses these connections and the 7.50inv2 display model:
spi:
clk_pin: GPIO8
mosi_pin: GPIO10
display:
- platform: waveshare_epaper
cs_pin: GPIO3
dc_pin: GPIO5
busy_pin:
number: GPIO4
inverted: true
reset_pin: GPIO2
model: 7.50inv2
update_interval: 30s
lambda: |-
it.print(0, 0, id(font1), "Hello World!");The 30-second interval is a demonstration value, not a battery-life recommendation. A practical battery-powered installation should refresh only as often as necessary, or wake when an important state changes.
Typical installation path
- Install or open ESPHome in your Home Assistant environment.
- Create an ESP32-C3 device configuration.
- Apply the pin assignments and ePaper model from Seeed’s ESPHome cookbook.
- Add Wi-Fi credentials and Home Assistant API settings.
- Compile and flash the firmware over USB or with a documented ESPHome flashing method.
- Allow the device to join Wi-Fi.
- In Home Assistant, open Settings → Devices & services, locate the discovered ESPHome device, click Configure, enter the API encryption key from
secrets.yaml, and add the device. - Reference Home Assistant entities in the display lambda and test refresh behavior before mounting the panel.
For users without an existing Home Assistant server, Seeed’s tutorial presents Home Assistant Green as a simple host. Existing users can instead use a Raspberry Pi, server, NAS, or virtual machine.
Rank #3
- Flexible MCU Board: Incorporate the ESP32-C3 32-bit RISC-V chip, operating up to 160 MHz, mounted multiple development ports, supported by Arduino / CircuitPython
- Outstanding RF performance: Implement complete Wi-Fi functions and Bluetooth Low Energy, while supporting communication over 100m with a U.FL antenna
- Elaborate Power Design: Provide 4 working modes as low as 44 μA in deep sleep mode, while supporting lithium battery charge management
- Thumb-sized Design: 21 x 17.5mm, Seeed Studio XIAO series classic form factor and elegant productization of single-sided components mounting, suitable for wearable devices
- Perfect for Production: Breadboard-friendly & SMD design, no components on the back
Battery life: what three months means
Seeed describes approximately three months of battery life in deep-sleep operation. The launch material associates that claim with a refresh roughly every six hours. It should therefore be read as an approximate, conditional result—not a guarantee for every firmware configuration.
Runtime depends on refresh frequency, Wi-Fi connection time, signal strength, reconnection behavior, sleep implementation, battery age, temperature, and how often the display wakes. A 30-second update interval may be useful while developing a layout but is fundamentally different from a low-power deployment that refreshes every few hours or only after meaningful events.
The ePaper image can remain visible while the controller sleeps or is disconnected. However, current Home Assistant information requires the panel to wake, reconnect, and communicate with the local network. Weak Wi-Fi can increase wake time and reduce runtime.
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsRecovery and firmware maintenance
Seeed documents Boot and Reset buttons behind the stand. Boot is used to enter bootloader mode when normal serial upload is unavailable; Reset restarts the program.
Rank #4
- Built-in ESP32-S3 Controller & SPI Interface - Comes with ESP32-S3-WROOM-1-N8R8 as the main MCU (up to 240 MHz) and standard 3-/4-wire SPI (default 4-wire) for easy integration. Supports the classic e-ink reader feel and responsive development flow
- Ultra-Low Power & Power-Off Retention - This epaper display only consumes power during refresh. Static content stays visible without a continuous power supply — ideal for battery-powered devices, smart labels and always-on displays
- High-Resolution e-ink Display - This 5.79″ e-paper display with 272 × 792 resolution delivers sharp black/white contrast and a wide viewing angle. Provides crisp clarity and a paper-like reading experience for smart tags and DIY devices
- Reflective, Sunlight-Readable - The pure reflection mode means no backlight required; the content remains clearly readable even under strong sunlight. Hard-coated anti-glare surface ensures excellent visibility and durability
- Rich Interfaces & Ready for Development - Includes BAT interface (2.2 V-3.7 V), UART0, 2×10 pin GPIO header, back/menu/reset/boot buttons, hard-coated anti-glare surface. Compatible with Arduino IDE, and suitable for DIY makers alike
For bootloader recovery:
- Connect the USB cable.
- Press and hold Boot.
- Press Reset once while continuing to hold Boot.
- Release Reset.
- Release Boot.
- Unplug and reconnect the power cable.
Pin assignments, ESPHome component names, Home Assistant menus, and flashing workflows can change. Check the current Seeed documentation before flashing a new device or troubleshooting a later firmware version.
Practical hardware limitations
- Monochrome only: The screen is designed for text, icons, and simple status graphics rather than rich color dashboards.
- Slow updates: Refreshes take seconds and may flash or leave ghosting.
- No documented touch input: It is a display endpoint, not a touch controller.
- No documented multimedia hardware: The supplied sources do not identify a speaker, microphone, camera, or voice assistant.
- Limited listed expansion: The comparison datasheet lists no SD-card support or expansion interfaces.
- Wi-Fi dependence: Network-based updates require a working local connection.
- PLA enclosure: The printed case is practical for makers but is not equivalent to a sealed, professionally finished wall panel. Avoid hot locations and consider cable access, charging access, and mounting strength.
Seeed’s documentation also links to a community wall-mount model, which may be more suitable than the included stand for a permanent installation.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
Seeed’s product page listed the XIAO 7.5-inch ePaper Panel at $75, with a displayed quantity price of $69 for 10 or more units, and showed it in stock when the product information was retrieved. Prices, inventory, shipping, taxes, and regional availability can change, so verify the live listing before ordering.
The original April 2025 launch coverage reported early-build pricing of $59 for the first 100 units and $69 afterward. That was launch pricing and should not be treated as the current retail price.
Best Value
- The ESP32-S3-ePaper-1.54 is an e-Paper AIoT development board, equipped with ESP32-S3 microcontroller, adopts high-performance Xtensa 32-bit LX7 dual-core processor, up to 240MHz main frequency. Suitable for Voice Interaction and e-Reader, etc
- Supports 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5 (LE), with onboard antenna. Built-in 512KB Static RAM, 384KB ROM, with integrated 8MB Flash and 8MB PS-RAM.
- Onboard 1.54inch e-paper display, 200 × 200 resolution, features high contrast and wide viewing angle. Onboard audio codec chip, supports voice capture and playback, enabling AI voice interaction applications. Supports AI Speech Interaction: Allows access to online large model platforms such as DeepSeek, Doubao, etc.
- Onboard PCF85063 RTC chip and SHTC3 temperature & humidity sensor for accurate RTC management and environmental monitoring. Onboard TF card slot for external storage of images or files. Onboard programmable PWR and BOOT side buttons for customized function development. Reserved 2 × 6 2.54mm pitch pin header for convenient external expansion.
- Supports ESP-IDF, Ardui IDE: Comprehensive SDK, dev resources, and tutorials to help you easily get started, please check: n9.cl/tseakv
How it compares with alternatives
Seeed reTerminal E1001
The reTerminal E1001 is another 7.5-inch, 800×480 monochrome ePaper product. Seeed’s comparison data lists an ESP32-S3 controller, metal enclosure, battery monitoring, SD-card support, UART and I2C expansion, and SenseCraft HMI support, with an MSRP range of $69–$76.99. It is the more attractive choice for buyers who want a finished enclosure and additional hardware interfaces.
Seeed reTerminal E1002
The E1002 uses a 7.3-inch full-color 800×480 display and an ESP32-S3. The comparison datasheet lists an MSRP range of $99–$109.99 and a slower listed refresh time than the monochrome alternatives. It makes sense when color matters more than speed, simplicity, or price.
TRMNL 7.5-inch OG DIY Kit
The TRMNL 7.5-inch OG DIY Kit uses an ESP32-S3-based Seeed board, a similar 7.5-inch 800×480 monochrome display, and a 2,000mAh battery. Its main distinction is the TRMNL dashboard ecosystem. Choose it when that software experience is the priority; choose the XIAO panel when you want a direct ESPHome and Home Assistant build around the ESP32-C3.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Tablet or LCD wall panel
A used Android tablet or dedicated LCD wall panel is generally better for touch controls, fast refresh, video, camera feeds, rich Lovelace dashboards, and constant interaction. The Seeed panel wins on low power, persistent glanceable information, ambient-light readability, and maker-level firmware control.
Who should buy it?
The XIAO 7.5-inch ePaper Panel is a strong choice if you want a large, low-power Home Assistant status screen, your data changes occasionally, and you are comfortable editing YAML and flashing firmware. The included enclosure and battery also save substantial assembly work.
Choose something else if you need touch input, color, animations, video, cameras, speakers, voice control, extensive I/O, certified commercial hardware, or a polished appliance that requires no firmware configuration. For most buyers, the central decision is simple: this is an excellent quiet information board, but a poor substitute for an interactive tablet.
Quick Recap
Sources
- Seeed Studio product page
- Seeed product documentation
- Seeed ESPHome cookbook
- Seeed Home Assistant and ESPHome workflow
- Seeed comparison datasheet
- Hackster launch report
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
