NOTE4 16-Level Grayscale Demo
Explore full refresh, partial refresh and sixteen grayscale levels on monochrome NOTE4 as a display foundation for your own e-paper projects.
USB firmware
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Device firmware · NOTE4 · Monochrome
Slate · Ink Note
Manage photos, information dashboards and voice interfaces on your own server, extending content as needed.
What it can do
Manage photos, information dashboards and voice interfaces on your own server, extending content as needed.
Self-hosted photo frame and information display
Web admin interface and device sync
Extensible voice-interaction framework
Install & use
Let AI help you install
Connect the device and give AI the detection results together with this firmware information.
1
Confirm the device and connect USB
USB chip information cannot distinguish monochrome from four-color screens. Confirm the model first.
Connect USB and detect the device
Read the chip and capacity first, so AI needs fewer follow-up questions.
Detection may restart the device into download mode. It does not flash firmware; you still need to confirm the display model.
Not detected yet. You can also copy the task first and ask AI to help connect.
2
Give the installation task to AI
Codex on your computer can install dependencies and run programs locally.
What AI will do next
Check compatibility → Prepare firmware and a full backup → Assist with local installation → Verify first run
After copying, start a new chat in Codex on your computer and paste the task.
See the task for AI
Only project information and the device details selected here are included. Network addresses, accounts and keys are configured locally during installation.
3
After installation, check this
The device shows the expected Slate · Ink Note screen and continues to work after repeated updates.
Ask AI to report the installation location, verification results and how to start again. Continue in the same conversation if something goes wrong.
Know the process? View manual steps and source
Monochrome NOTE4 · ESP-IDF firmware · Self-hosted backend and web admin interface
Deploy the companion service first
The repository includes firmware, a backend API and a web admin interface. Prepare the database and backend environment, then configure the service.
Back up and configure the device
Back up NOTE4's complete Flash. Build ESP32-S3 firmware as instructed and enter your own backend connection settings.
Manage and sync content
Manage content groups and screens through the web interface and confirm the device connects to the service. Voice also needs model or audio services configured as instructed; this site has not checked release packages.
Information organized · Release version and installation await review. Generating a task does not send it or run an installation automatically.
Frequently asked questions
Does installing the firmware enable every feature?
The backend and web admin interface must also run. Voice interaction may use model services you configure; the device is not a complete standalone system.
Who receives household content?
Data handling depends on your self-hosted backend and configured external services. Understand where photos, audio and credentials go before deploying.
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