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You can change what a GeekMagic SmallTV displays without replacing its stock firmware: create an image on a networked computer and send it to the device through its built-in photo viewer. Hackaday’s October 6, 2026 report describes a Python-and-Pillow example that sends a 240×240 image over HTTP; the method avoids soldering and leaves the original software in place.
What this SmallTV hack changes—and what it leaves alone
The GeekMagic SmallTV line consists of compact display gadgets built around ESP8266 or ESP32 microcontrollers. In the approach reported by Tom Nardi at Hackaday, you use the device’s built-in photo viewer to show an image prepared elsewhere, then send it across your local network over HTTP. The change is to the displayed content, not the device firmware.
The report does not identify the exact SmallTV model used in its demonstration. That matters if you are checking whether a particular device supports the same workflow: do not assume every model or hardware variant behaves identically based on the product-line name alone.
How the image-push method works
- Create an image. Hackaday’s example uses Python and Pillow to generate a 240×240-pixel image. Those are the tools used in the example, not stated requirements; the article says you can use a tool or language of your choice.
- Send the image to the SmallTV. The reported workflow pushes the file from another networked computer to the device over HTTP, for display in its built-in photo viewer.
- Choose what the screen shows. The example displays Claude and Codex usage data, but the image-generation step is flexible. Hackaday also reports GIF support, so the device can show animated content as well as a still image.
The 240×240 figure is the image size in this example, not a speed, resolution guarantee for every variant, or performance benchmark. Hackaday presents this as a proof of concept rather than a controlled test.
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Image customization is not firmware replacement
These are different levels of modification. The photo-viewer technique retains the stock software and sends it prepared content. Installing alternative firmware replaces or modifies the software on the device, and the steps depend on the hardware variant.
| Consideration | Built-in photo viewer | Alternative firmware |
|---|---|---|
| Stock firmware | Retained; the reported method uses the existing photo viewer. Hackaday | Replaced or modified; the precise process depends on the firmware project and device variant. smalltv-ultra project; GeekMagic SmallTV project |
| Technical work | Prepare an image and send it over HTTP; Python and Pillow are one demonstrated option. Hackaday | Follow a variant-specific firmware installation procedure. The project documentation describes OTA for some methods and USB or UART access for other boards. smalltv-ultra project; GeekMagic SmallTV project |
| Hardware access or soldering | The reported demonstration avoids soldering. Hackaday | Access requirements vary by board; some documented routes use USB or UART rather than OTA. smalltv-ultra project; GeekMagic SmallTV project |
| Compatibility | The exact model in Hackaday’s example is not named, so compatibility across the SmallTV line is not established. Hackaday | Check the firmware project’s instructions for your specific hardware variant before proceeding. smalltv-ultra project; GeekMagic SmallTV project |
| Security and recovery | The Hackaday report describes the image-display workflow; it does not establish security or recovery properties for every stock model. | The smalltv-ultra project warns about shared default credentials, plain HTTP, and possible bricking, and advises against exposing the device to the internet. Those warnings apply to that project, not automatically to all SmallTV firmware. smalltv-ultra project |
When to choose each route
Use the photo viewer for display experiments
Choose the image-push approach if your goal is to put your own dashboard, graphic, or animation on the screen while keeping the supplied software. It is the lower-friction route described by Hackaday because it requires image creation and a network transfer, not firmware flashing or soldering.
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Consider firmware replacement only for a firmware-level change
Alternative firmware is a separate project for readers who specifically want to change the device software. First identify the exact board variant, then follow that project’s matching installation and recovery instructions. An OTA procedure documented for one variant is not proof that another board can use it.
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What to check before trying it
- Identify the exact SmallTV model or board revision; Hackaday’s example does not name it.
- Keep the image-push method distinct from firmware installation: sending an image uses the built-in viewer, while flashing changes the software.
- If you pursue alternative firmware, verify the required access method and risks in the documentation for that specific project and variant.
- Do not apply the smalltv-ultra project’s security warnings as blanket claims about all stock or third-party firmware.
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