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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 Waveshare 13.3-inch PiPad C4 is an all-in-one computer with an integrated Raspberry Pi CM4 and a capacitive touch screen in Full HD resolution. It targets users who want a compact, preconfigured system for web browsing, mini-games, and multimedia.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL21622 WSAL21622 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL21631 WSAL21631 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL21769 WSAL21769 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL21770 WSAL21770 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL21773 WSAL21773 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL21774 WSAL21774 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL22703 WSAL22703 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL22743 WSAL22743 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]
* [https://shop.jw-tech.eu/p/WSAL22744 WSAL22744 – 13.3inch Mini-Computer Powered by Raspberry Pi CM4, HD Touch Screen]

== Technical overview ==
* Integrated controller: Raspberry Pi CM4 (quad-core Cortex-A72 ARMv8 64-bit SoC @ 1.5 GHz), dual-band Wi-Fi, and Bluetooth 5.0.
* Display: 13.3-inch IPS panel with 1920x1080 resolution and a tempered glass capacitive touch panel supporting up to 10-point touch (hardness 6H).
* Audio: Built-in speaker, high-quality MEMS silicon microphone, and a 3.5 mm audio jack.
* Mounting: Compatible with universal wall mounts via 75x75 mm mounting holes (M4) on the back; includes a stand with a 75-degree tilt angle.
* System installation: The Raspberry Pi OS is flashed to a TF card via the USB Slave interface using a Type-C cable; SSH is enabled by creating a blank file named 'SSH' in the root directory of the card.
* Screen settings: Add hdmi_group=2, hdmi_mode=82, and hdmi_cvt 1920 1080 60 6 0 0 0 at the end of config.txt (no spaces around the equals sign).
* USB2.0: Disabled by default to save power; to enable it, add dtoverlay=dwc2,dr_mode=host to config.txt and reboot.
* RS232: Adding dtoverlay=uart3 to /boot/config.txt provides the serial interface under /dev/ttyAMA1.
* RS485: Use raspi-config to enable the hardware serial port; the device appears under /dev/ttyS0.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
dtoverlay=dwc2,dr_mode=host
hdmi_group=2
hdmi_mode=82
hdmi_cvt 1920 1080 60 6 0 0
sudo vi /etc/lightdm/lightdm.conf
xserver-command=X -s 0 -dpms
sudo nano /boot/config.txt
dtoverlay=uart3
sudo raspi-config
sudo reboot
</syntaxhighlight>

== Notes and version constraints ==
* Power supply requires 12 V/1 A with a 3.5 mm outer diameter and 1.35 mm inner diameter connector; alternative power supplies must maintain ripple within ±5%.
* With newer Raspberry Pi OS versions (after October 30, 2021), USB2.0 may report 'config failed, hub doesn't have any ports! (err -19)'; remove otg_mode=1 in the [cm4] section and add dtoverlay=dwc2,dr_mode=host to resolve.
* Installing the Magic Mirror system requires opening the back cover and mounting the CM4 on the board – step-by-step guidance required.
* Version-sensitive steps: Exact configuration options depend on the installed OS version; consult current documentation before making changes.
* Safety note: When using external power supplies, strictly adhere to ripple requirements to prevent device damage.

== Source and revision record ==
* [https://www.waveshare.com/wiki/13.3inch_PiPad_C4 13.3inch PiPad C4 - Waveshare Wiki]
* Source revision: 110866
* Captured: 2026-09-03T03:05:54+00:00
* SHA-256: <code>bf4136e917100d87889762a2de301f9433c9b8cd1ec5730bb0d0d2de77c0ea89</code>

WSAL21622 – 13.3inch PiPad C4/en - Versionsgeschichte

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