The boards I have worked with have booted fine via the data port, but it appears the CP2102 chip may pull DTR to ground when only the PD port is connected. As a workaround, you can cut the DTR line on the board (this will disable auto reset via the USB port when uploading a new program. Less of an issue if you have OTA enabled, I’m not sure if the Khrull firmware supports OTA).
I’ve opened an issue on GitHub to look further into this issue.
I have a theory about how to correct the design for wireless use, using a usb-c splitter may resolve the issue (or it may not, I haven’t been able to check this one yet).
We dont connect the data port only to flash the firmware preferably Khrulls Fw as it has Wifi. We only connect power and it should boot up which it doesn’t at the moment. Maybe you can have a chat with @Khrull so we can solve this problem? Dunno if I mentioned it would help if he had a board to tinker with. He does not need one but sadly we do need him to have one.
It does not according to Khrull. The problem will have to be solved as people buy your board only because of three reasons. First is no solder, second needs less room and third and most important single cable use data over Wifi. Pressing that button each time is really inconvenient. Hope you find a way around the issue.
OK so C8 needs to be removed it seems so USB Power connection and wifi will start the device at once. @plasmarobo can you post a picture of the C8 location please? Heat C° recommendation to remove it?
Blockquote Current unshipped orders for the 1.3 hardware will have it removed before shipping. Future orders will have it removed or ship with the 1.4 hardware
@plasmarobo one more feedback. There are tiny burst movements when idling. No script loaded after the firmware bootup sequence. Maybe something to investigate even if it does not disturb.
@plasmarobo would make sense to sell it soldered with the three Motor pins. Would make the SSR1 solder free.
I haven’t observed any burst movements, with a 100W power supply and serial connection, the device holds steady even under load. They may be a function of power supply/motor temperature.
You can try lowering motor temperature or playing with the tension to see if that resolves the issue, but that is getting out of my area of expertise.
I’d check on the TMAx discord if you need additional troubleshooting!
