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Bring your own PiZero: BYOP

Bring you own Pi Zero, docking onto the station, exchanging messages with other Pi Zero.

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Description

1. Dock the Pi Zero to the message station
2. Connect the GPIO cable
3. Connect the USB power cable

Then, the message station will automatically exchange message.

4. Remove your Pi Zero.

Details

Recommendation:

GPIO snap cable, which Adafruit might to consider to produce.
with the GPIO snap cable, Pi Zero owners can connect/disconnect GPIO without soldering
GPIO snap cable v0.1

Diagrams:

Connection diagram v0.3 (Pi Zero and ESP8266, PWR)
Voltage Converter 5V to 3.3V v0.1 (Updated 28 Feb. 2016) : A module named Module_VoltageConverter_5V_3R3V on Upverter. see also Bill of Materials etc

Protocols:

Code:

Setup:

Application:

Components

1 × Raspberry PiZero to bring from your home
1 × I2C Character display (8 x 2) to display "hello" or some messages to the user [ http://akizukidenshi.com/download/ds/xiamen/AQM0802.pdf ]
1 × ESP-WROOM-02 ( ESP8266 ) to control I2C Character display and communicate with PiZero / store and recover message [ http://akizukidenshi.com/download/ds/espressifsystems/0C-ESP8266__WROOM_WiFi_Module_Datasheet__EN_v0.4.pdf ]
1 × Voltage converter (5V to 3.3V) using three terminal regulator such as those used in https://upverter.com/7of9/176ba6a2f9665138/SNS-MQ135_160209/ to supply power to ESP8266
1 × USB Hub

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