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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

== Summary ==
The 13.3inch Magic Mirror C4 is a mini-computer based on the Raspberry Pi CM4 with an IPS display, capacitive touch surface, and integrated voice control.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL21621 WSAL21621 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL21629 WSAL21629 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL21771 WSAL21771 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL21772 WSAL21772 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL21775 WSAL21775 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL21776 WSAL21776 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL24766 WSAL24766 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL24775 WSAL24775 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]
* [https://shop.jw-tech.eu/p/WSAL24776 WSAL24776 – 13.3inch CM4 Magic Mirror, Mini-Computer, Speech Assistant, Touch Control]

== Technical overview ==
* Uses a 13.3-inch IPS panel with 1920 x 1080 HD resolution and one-way mirror glass.
* Integrated CM4 module: 64-bit, 1.5 GHz quad-core processor, dual-band Wi-Fi, and Bluetooth 5.0.
* Capacitive touch panel made of toughened glass (6H hardness) supporting up to 10 touch points.
* Includes built-in speaker and microphone; voice recognition uses the Snowboy hotword detection engine.
* Mounting via 75 x 75 mm spacing holes (M4 screw holes) for wall mounting; includes a stand with a 75° tilt angle.
* USB2.0 port is disabled by default to save power; enabling it requires adding 'dtoverlay=dwc2, dr_mode=host' to config.txt.
* For HDMI output, set hdmi_group=2, hdmi_mode=82, and hdmi_cvt 1920 1080 60 6 0 0 0 in /boot/config.txt.
* Installation involves writing the Raspberry Pi OS to a micro SD card, creating an empty SSH file in the BOOT directory, then booting via SSH or directly with keyboard/mouse.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
aplay -l
arecord -l
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt install -y nodejs
git clone https://github.com/MichMich/MagicMirror
cd MagicMirror/
npm install
DISPLAY=:0 npm start
git clone https://github.com/waveshare/MMM-VoiceAssistant.git
cp config/config.js.en ~/MagicMirror/config/config.js
sudo apt-get update && sudo apt-get install python3-dev python3-venv
python3 -m venv env
env/bin/python -m pip install --upgrade pip setuptools wheel
source env/bin/activate
sudo apt-get install swig libatlas-base-dev portaudio19-dev flac
pip3 install PyAudio SpeechRecognition
git clone https://github.com/Kitt-AI/snowboy.git
cd snowboy/swig/Python3 && make
cd ../../examples/Python3
python3 demo.py resources/models/smart_mirror.umdl
</syntaxhighlight>

== Notes and version constraints ==
* Google Assistant Service usage is limited to a maximum of 500 requests per day.
* If the wake word does not work, a new model must be created on the Snowboy website and copied into the ~/MagicMirror/modules/MMM-VoiceAssistant/pi directory.
* With newer Raspberry Pi OS versions (after October 30, 2021), the USB2.0 port may report an error ('config failed, hub doesn't have any ports!'); removing otg_mode=1 and adding dtoverlay=dwc2,dr_mode=host resolves this.
* Modifying the lightdm settings requires a reboot to take effect.
* When using alternative power supplies, ensure that the supply ripple remains within ±5%.

== Source and revision record ==
* [https://www.waveshare.com/wiki/13.3inch_Magic_Mirror_C4 13.3inch Magic Mirror C4 - Waveshare Wiki]
* Source revision: 76013
* Captured: 2026-09-03T03:04:47+00:00
* SHA-256: <code>56bb7c4be4079482a122ec29b32e11597ca7fd0f1613f0dc0cf8124458b2bb77</code>

WSAL21621 – 13.3inch Magic Mirror C4/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex