* 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:lcds___displays_684_LRG.jpg|400px|thumb|left]]<br clear=both>[[Image:rpi-oled-connections_bb.png|thumb|700px|right]]
* Rudimentary bit-banging Python driver: [https://gist.github.com/HentschelT/5fa11f13832cca6e7408886f4e89d05e Gist at Github]
* Native driver package [https://github.com/rm-hull/luma.oled at Github]
* Hooking up * Connect display ground to Raspberry Pi ground (black wire).** Connect display VIN to Raspberry Pi 3.3 volt (red wire).** Connect display CS to Raspberry Pi CE0 (yellow wire).** Connect display RST to Raspberry Pi GPIO 24 (blue wire). You can alternatively use any free digital GPIO pin for the reset pin.** Connect display via SPI https://learnDC to Raspberry Pi GPIO 23 (cyan wire).adafruitYou can alternatively use any free digital GPIO pin for the DC pin.com/ssd1306** Connect display CLK to Raspberry Pi SCLK (orange wire).** Connect display Data to Raspberry Pi MOSI (purple wire).[[File:rpi-spi-oled-displaysssd1331-with-raspberryconnect.png|500px|left]]<br clear=both> [[File:j8header-zero.png|400px|thumb|left|pi4j gpio]][[File:pi-andgpio-beaglebone-blackbcm.png|400px|thumb|BCM GPIO]]<br clear=both> ==== OLED B/W display based on SSD1306 ====* address 0x7B* wiring:[[ImageFile:Oled-RPi-wiringraspberry_pi_RaspberryPi_I2C_bb.png|thumb|700px400px|left]]<br clear=both> ==== Relay board ====* [[File:j8headerSchematic-zero0G-00004539-Mod-Relay-x1-5V.pngpdf]]==== 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* find font files 'concertone-regular.ttf' and 'fontawesome-webfont.ttf'* install python oled server, use example scripts for verification* update node-red from current version on RPi https://nodered.org/docs/hardware/raspberrypi** check this too -> https://timchooblog.wordpress.com/2016/06/14/configuring-the-johnny-five-robotics-library-to-work-in-node-red/* add "require:require" to the ''settings.js'' in the .node-red directory* cd '.node-red'* 'npm install node-red-contrib-stoptimer'* 'npm install node-red-contrib-ds18b20-sensor'* https://github.com/node-red/cookbook.nodered.org/wiki/How-to-backup-flows-and-related-configuration* node-red flow for fireplace (rename to .js and import) [[:File:node-fireplace-js.doc|400pxnode-fireplace.js]]
=== Enclosure ===
* the 3d-printable decora cover: [http://www.thingiverse.com/thing:1643841/#files at thingiverse]
# recessed reset button
?
== Design Rev. 3.0 ==
[[Image:Sonoff-TH16.jpg|400px|thumb|right]]
[[Image:Sonoff-TH16-back.jpg|400px|thumb|right|backside]]
* Use Sonoff 16TH, install firmware found [https://github.com/arendst/Sonoff-Tasmota at this link]
* '''before this works, need to have emergency/offline action when network not available, otherwise nothing will shut the fireplace down if network is unavailable'''
* Schematic here: [[:File:Sonoff_TH10A(16A)_schmatic.pdf]]
* Find 5V connection for USB power supply on the board
** make sure relay works
* Enclosure:
** Either drill blank Decoray cover and 3d print a mount
** Or 3d print the whole Decora cover including mount