https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL19979_%E2%80%93_Pico-2CH-RS232%2FenWSAL19979 – Pico-2CH-RS232/en - Versionsgeschichte2026-10-23T21:51:52ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL19979_%E2%80%93_Pico-2CH-RS232/en&diff=1168&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-05T22:14:33Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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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.<br />
<br />
== Summary ==<br />
The Waveshare Pico-2CH-RS232 is a 2-channel RS232 module for Raspberry Pi Pico and Pico 2. It uses the SP3232EEN transceiver to convert UART signals to RS232.<br />
<br />
== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL19979 WSAL19979 – 2-Channel RS232 Module for Raspberry Pi Pico, SP3232EEN Transceiver, UART To RS232]<br />
<br />
== Technical overview ==<br />
* Operating voltage: 3.3 V to 5 V<br />
* RS232 transceiver: SP3232EEN with efficient charge pump (requires only 0.1 µF capacitor at 3.3 V)<br />
* Two independent channels via GP0/GP1 (Channel 0) and GP4/GP5 (Channel 1)<br />
* Supported baud rates: 300 to 912600 bps<br />
* Dimensions: 21.00 mm (height) x 52.00 mm (width)<br />
* Wiring: VCC to VSYS, GND to GND, TXD0 to GP0, RXD0 to GP1, TXD1 to GP4, RXD1 to GP5<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo apt-get install p7zip-full<br />
cd ~<br />
sudo wget https://files.waveshare.com/upload/5/5a/Pico_2CH_RS232_Code.7z<br />
7z x Pico_2CH_RS232_Code.7z -o.<br />
cd ~/Pico_2CH_RS232_Code/c/build/<br />
export PICO_SDK_PATH=../../pico-sdk<br />
cmake -DPICO_BOARD=pico -DPICO_PLATFORM=rp2040 ..<br />
make -j9<br />
cp main.uf2 /media/pi/RPI-RP2/<br />
cp main.uf2 /media/pi/RP2350<br />
</syntaxhighlight><br />
<br />
== Notes and version constraints ==<br />
* The source text contains a typo: the heading mentions 'RS485', while the product is an RS232 module; the pinout table refers to RS232.<br />
* The pico-sdk path may vary depending on installation; the correct SDK path must be set before running cmake.<br />
* When flashing MicroPython firmware, the device may not be recognized; the source recommends using the provided .uf2 files.<br />
* The CMake commands are version-sensitive: For Pico 2, use -DPICO_BOARD=pico2 -DPICO_PLATFORM=rp2350.<br />
* The Thonny version must be up-to-date (at least v3.3.3 on Windows), otherwise Pico support is missing.<br />
<br />
== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/Pico-2CH-RS232 Pico-2CH-RS232 - Waveshare Wiki]<br />
* Source revision: 91213<br />
* Captured: 2026-09-02T03:06:42+00:00<br />
* SHA-256: <code>7a3dfd798627283564ec6f62dc55b228ab5181ffdf541e2486e1fd2f6b30f79f</code></div>JWTechPublisher