* Inspired from [http://frederickvandenbosch.be/?p=1365 here]:
[[File:raspi0-box.jpg|400px]]<br clear=both>
=== Hardware ======= OLED color display based on SD1331 ====
* the Oled display which will fit into decora blank [https://www.adafruit.com/products/684 at this link]
* programming the display https://media.readthedocs.org/pdf/luma-oled/latest/luma-oled.pdf
[[File:j8header-zero.png|400px|thumb|left|pi4j gpio]][[File:pi-gpio-bcm.png|400px|thumb|BCM GPIO]]<br clear=both>
==== OLED B/W display based on SSD1306 ====
* address 0x7B
* wiring:
[[File:raspberry_pi_RaspberryPi_I2C_bb.png|400px|left]]<br clear=both>
==== Relay board ===
* [[File:Schematic-0G-00004539-Mod-Relay-x1-5V.pdf]]
==== Temp Sensor ====
* Type DS18b20
* Amazon [https://www.amazon.com/gp/product/B00KUNKR3M/ link]
=== Software ===
* install/enable luma.oled [https://luma-oled.readthedocs.io/en/latest/install.html link] + examples [https://github.com/rm-hull/luma.examples link], make sure examples run