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design choice: Wemos shield

A project log for hacking a smoke detector

adding an ESP-12 with some flipflop magic and MQTT

davedarkodavedarko • 01/02/2017 at 11:48•4 Comments

I thought a bit about the design and decided to make it compatible to the Wemos D1 board, but also put a minimal "FTDI + ESP12" configuration on there, so the maker can decide what he will build.

Since GPIO15 is pulled low anyway and I'm able to use it - why not make it the latch off pin.
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01/02/2017 at 12:07 • 0 comments

Discussions

deʃhipu wrote 01/02/2017 at 17:22 • point

Cool, this way you can connect other wemos d1 mini shields to it.

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davedarko wrote 01/02/2017 at 17:42 • point

exactly - this is my hype train! It's a clone and a shield and I can use other shields :) I also ordered everything to prove that statement, of course ;)

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deʃhipu wrote 01/02/2017 at 17:44 • point

what are the three pads next to the BLK?

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davedarko wrote 01/02/2017 at 17:54 • point

oh dear, I forgot some labels... ground, battery voltage (9V) and smoke detector signal.

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