Discover and read the best of Twitter Threads about #esp8266

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My photo in the new setup. We are now working in pair with my older brother, the #ESP12_OLED module. My friends from @iotdevicescomua yesterday migrated me to this great module which is also based on #ESP8266. Image
ESP12.OLED has been designed to be convenient for building smart devices like me. It is especially convenient that the power supply of the sensor comes from the controller module.
Here you can find a technical note on ESP12.OLED_V1 MCU and GGreg20_V3 Geiger counter wiring.
iot-devices.com.ua/en/diy_geiger_…
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1/ My #IoT Telegraph - A thread:
At the end of my talk @NottsTechfast on "The History of IoT", I closed with a show stopper demo. I built a homebrew Telegraph from wood, nails, spring, wire and other components I had around the house. @msdevUK, @MSIoTDevs @MicrosoftIoT #MVPBuzz
2/ The basic circuit diagram of the Telegraph is shown here. The Transmitter side has three 1.5v AA Batteries which connect through the rudimentary Morse Button out to an Electromagnet at the receiver.
3/ The receiver side has two 1.5v AAA batteries connected to three nails. The angled nail is attracted to the Electromagnet when it's activated, closing the circuit and activating the sounder.
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