I am developing on ESP8266 with ESP-12E on a full fledged development board (Like:

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I am developing on ESP8266 with ESP-12E on a full fledged development board (Like: https://www.amazon.de/gp/product/B0182JOWOK/) with USB and pin out for all I/O. Works like a champ.

Now, how do I move my software and my circuit (OLED, buttons and such) on a “production board”? (Like: https://www.amazon.de/gp/product/B00U293Y5M/)

The small board only has 8 pins. Is there a description available how to flash and wire those? Maybe even a small board?

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http://thegaragelab.com/content/images/2016/02/ESP-01-Pinout.jpg shows you the pinout and https://zoetrope.io/tech-blog/esp8266-bootloader-modes-and-gpio-state-startup tells you which pins to pull up/down to boot it into a flashing-mode.

As for getting OLED, buttons and all that on one of these: you don’t, unless you can make do with 4 pins.

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Thanks for lighten me up :slight_smile:
What other possibilities are there to move to a more suitable solution which offers more I/O than just 2 Pins?

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What’s wrong with using the Nodemcu-board?

You really have only a couple of choices: 1) use the Nodemcu-board 2) use a Wemos-board 3) you make a custom board 4) you throw your hands up in the air and give up

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Well, the development board is too large for my purpose.

Oh, the Wemos-board is nice! Didn’t knew about that one. And comes with shields. Doh! I feel dumb :slight_smile:

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Do note that there is a size-difference even between the Nodemcu-boards. I have both boards based on the 0.9-schematics and the 1.0-schematics and you can see in https://dl.dropboxusercontent.com/u/11811685/nodemcus.jpg that the 1.0-one is a lot smaller. The LoLin-version of the Nodemcu you have is based on the 0.9-schematics, so it’s the larger one in the picture.

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Hm, Wemos sells on AliExpress, but the D1 is sold out :expressionless:

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I always buy my stuff on eBay.

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Use vero or stripboard. Buy a few ESP8266-12s from Aliexpress along with the adapter plates… https://www.aliexpress.com/item/ESP8266-serial-WIFI-module-adapter-plate-Applies-to-ESP-07-ESP-08-ESP-12/32539136670.html

then build your own circuit :slight_smile:

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@Alan_Lord He did say size is an issue, and he’d be quite hard-pressed to build something smaller than a Nodemcu 1.0 or Wemos D1 Mini on a veroboard by hand.

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Then design a PCB using something like Eagle and get @OSH_Park to print it…

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Ah, great fun, thanks!