https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL20129_%E2%80%93_Pico-ePaper-7.5-B%2FenWSAL20129 – Pico-ePaper-7.5-B/en - Versionsgeschichte2026-10-23T22:56:31ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL20129_%E2%80%93_Pico-ePaper-7.5-B/en&diff=2096&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:42:42Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
<p><b>Neue Seite</b></p><div>__NOINDEX__<br />
'''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.<br />
<br />
== Summary ==<br />
The Waveshare Pico e-Paper 7.5 B is a 7.5-inch e-paper display module with 800×480 pixels and a tri-color red/black/white output mode, connected to a Raspberry Pi Pico via an SPI interface.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL20129 WSAL20129 – 7.5inch E-Paper E-Ink Display Module (B) for Raspberry Pi Pico, 800×480, Red / Black / White, SPI]<br />
<br />
== Technical overview ==<br />
* Resolution: 800 × 480 pixels; screen diagonal: 7.5 inches<br />
* Display colors: black, white, red (tri-color mode)<br />
* Interface: SPI, operating voltage 3.3 V<br />
* Full refresh takes approximately 16 s; flickering during the global refresh is normal<br />
* Refresh power: 48 mW typical; standby current &lt; 0.01 µA<br />
* Pico pinout: DIN→GP11, CLK→GP10, CS→GP9, DC→GP8, RST→GP12, BUSY→GP13, VCC→VSYS, GND→GND<br />
* Pixel data are stored as one byte per 8 pixels; in tri-color mode two bit-planes are required: a black/white plane and a red/white plane<br />
* Demo code can be downloaded via wget or git clone and compiled/run under C/C++, MicroPython or Arduino<br />
<br />
'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
cd ~ && sudo wget https://files.waveshare.com/upload/5/5a/Pico_ePaper_Code.zip && unzip Pico_ePaper_Code.zip -d Pico_ePaper_Code && cd ~/Pico_ePaper_Code<br />
cd ~ && git clone https://github.com/waveshare/Pico_ePaper_Code.git && cd ~/Pico_ePaper_Code<br />
mkdir build && cd build && export PICO_SDK_PATH=../../pico-sdk && cmake -DPICO_BOARD=pico -DPICO_PLATFORM=rp2040 .. && make -j9<br />
cp epd.uf2 /media/pi/RPI-RP2/<br />
sudo apt upgrade thonny<br />
git clone https://github.com/waveshare/Pico_ePaper_Code.git<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* The stated 16 s refresh time is experimental test data; actual times may vary<br />
* When waking from deep sleep, the first refresh may show afterimages; clear the screen before refreshing<br />
* If the program gets stuck in the busy state: check wiring and verify SPI parameters (baud rate, mode)<br />
* After entering deep sleep, the module must be re-initialized before it can be refreshed again<br />
* The display border color can be adjusted via the Border Waveform Control register or the VCOM AND DATA INTERVAL SETTING register<br />
* Power consumption figures are lab measurements; real-world values may differ depending on driver board and usage conditions<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/Pico-ePaper-7.5-B Pico e-Paper 7.5 B - Waveshare Wiki]<br />
* Source revision: 69264<br />
* Captured: 2026-09-02T03:20:57+00:00<br />
* SHA-256: <code>2dd21c5b2a771c65039a2f3c0bfbf29139ed5245f925eac9718c1ec02758c837</code></div>JWTechPublisher