<![CDATA[Stamp-C3 update thru pins (pinout question)]]>Question

Does anyone know if it is possible to upload from Arduino IDE to the Stamp-C3 using the PORT.U pins (GND, G18/D-, G19/D+, 5V) instead of using the USB-C connector? Since the ESP32-C3 does not support OTG, I assume that PORT.U and USB-C are the same, no? Otherwise, using the ESP32 Downloader Kit via the ISP pins would be the only solution if one wants to go through PCB, right? Thanks!

]]>https://community.m5stack.com/topic/7392/stamp-c3-update-thru-pins-pinout-questionRSS for NodeSat, 09 May 2026 15:35:21 GMTThu, 13 Mar 2025 14:49:10 GMT60<![CDATA[Reply to Stamp-C3 update thru pins (pinout question) on Tue, 18 Mar 2025 03:47:08 GMT]]>@davekc You doubt him at your peril, Sir!

]]>https://community.m5stack.com/post/28549https://community.m5stack.com/post/28549Tue, 18 Mar 2025 03:47:08 GMT<![CDATA[Reply to Stamp-C3 update thru pins (pinout question) on Mon, 17 Mar 2025 19:52:34 GMT]]>Hello @felmue,

To be honest, I doubted your response, and I had to review those schematics to realize that I had missed it. Thank you so much!

Regards,
Dave

]]>https://community.m5stack.com/post/28547https://community.m5stack.com/post/28547Mon, 17 Mar 2025 19:52:34 GMT<![CDATA[Reply to Stamp-C3 update thru pins (pinout question) on Fri, 14 Mar 2025 04:25:17 GMT]]>Hello @davekc

M5Stamp-C3: PORT-U pins and USB-C are not the same. Check schematics here.

M5Stamp-C3U: PORT-U pins and USB-C are the same. Check schematics here.

Thanks
Felix

]]>https://community.m5stack.com/post/28499https://community.m5stack.com/post/28499Fri, 14 Mar 2025 04:25:17 GMT