some notes

I should compare the pinouts of my FTDI dongles, they seem to be different on RX vs. TX
the pin holes for the ESP-01 version are way to tight
I might add another 10uF cap near to the ESP module
USB micro footprint for 5V in ?

Discussions

Stefan Lochbrunner wrote 08/04/2015 at 20:48

YES, micro USB footprints EVERYWHERE! And how about an optional CH340G footprint to omit the problem of different pinouts of different USB2serial dongles? I personally prefer the CP2102.

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davedarko wrote 08/04/2015 at 21:04

I'm not so sure about the serial chips, because of all the options etc. so maybe this project of @al1 would be interesting for you then?

https://hackaday.io/project/5231-esp8266-esp-0712-dev-board

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Stefan Lochbrunner wrote 08/04/2015 at 22:46

Yeah, I've seen his board but I think I got deterred by the mini USB ;) But maybe I'll bug him until he switches to micro USB ;)

I just figured if you add USB you might as well add the footprint for a serial chip while still keeping the serial header.

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davedarko wrote 08/05/2015 at 04:18

I'm not sure if the ch340g is working with OSX - I think that's why I skipped that.. I have to check the footprints of mini and micro usb ports, maybe they are quite alike and there is a dual footprint. I could not find a micro usb footprint in my libraries...

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Alex wrote 08/05/2015 at 07:16

dual foot print for micro and mini USB sounds like a good Idea. I shuold add that to my todo list.

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davedarko wrote 08/05/2015 at 07:36

this way @Stefan Lochbrunner would be happy too :)

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Stefan Lochbrunner wrote 08/05/2015 at 11:43

very happy :)

Hey @al1, would you mind connecting DTR/CTS?

correction: it's DTR and RTS for ESPtool and NodeMCU devkit

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Alex wrote 08/13/2015 at 20:28

I have stated to think about a next revision of my PCB. There I will use both micro and mini USB. And also I will try to get optional compatibility to the nodeMCU boards. Check ouzt my project log there will be (maybe tomorrow or after my vacation - at the end of august) a new log entry about this new revison.

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davedarko wrote 08/13/2015 at 20:48

looking forward to it, have a good time on your vacation!

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boards are in

dirtyPCBs are in

Discussions

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