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(→‎Design Rev 2.0)
(→‎Design Rev. 3.0)
 
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* Inspired from [http://frederickvandenbosch.be/?p=1365 here]:  
 
* Inspired from [http://frederickvandenbosch.be/?p=1365 here]:  
 
[[File:raspi0-box.jpg|400px]]<br clear=both>
 
[[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]
 
* 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
 
* 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>
+
[[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]
 
* 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]
 
* Native driver package [https://github.com/rm-hull/luma.oled at Github]
−
* Hooking up the display via SPI https://learn.adafruit.com/ssd1306-oled-displays-with-raspberry-pi-and-beaglebone-black/wiring
+
** Connect display ground to Raspberry Pi ground (black wire).
−
[[Image:Oled-RPi-wiring.png|thumb|700px|left]]<br clear=both>
+
** Connect display VIN to Raspberry Pi 3.3 volt (red wire).
−
[[File:j8header-zero.png|400px]]
+
** 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 DC to Raspberry Pi GPIO 23 (cyan wire). You can alternatively use any free digital GPIO pin for the DC pin.
 +
** Connect display CLK to Raspberry Pi SCLK (orange wire).
 +
** Connect display Data to Raspberry Pi MOSI (purple wire).
 +
[[File:rpi-spi-oled-ssd1331-connect.png|500px|left]]
 +
<br clear=both>
 +
 
 +
[[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
 +
* 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'
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* '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|node-fireplace.js]]
 +
 
 
=== Enclosure ===
 
=== Enclosure ===
 
* the 3d-printable decora cover: [http://www.thingiverse.com/thing:1643841/#files at thingiverse]  
 
* the 3d-printable decora cover: [http://www.thingiverse.com/thing:1643841/#files at thingiverse]  
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# recessed reset button
 
# 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

Latest revision as of 03:03, 9 March 2018

Basics

Fan control off: 

<node flag='0'>
  <address>14 23 AC 4</address>
  <name>Thermostat - Fan Control</name>
...
  <property id='ST' value='0' formatted='Off' uom='%/on/off'/>
</node>

Fan control on 

<node flag='0'>
  <address>14 23 AC 4</address>
  <name>Thermostat - Fan Control</name>
...
  <property id='ST' value='255' formatted='On' uom='%/on/off'/>
</node>

Thermostat manuals

adjusting dead band for 2nd stage


Design

Thermostat controller schematics
Fireplace controller - called HPC-350-M - can be found here
  • Use insteon 2450 to switch fireplace low-voltage control
  • Control Insteon 2450 via Thermostat - Heat Control (insteon address: 14 23 AC 3) via ISY program
  • Rewire house heater to use the 2nd stage heater control on the thermostat
  • Sense fire place heater via 2450 input
  • Engage house heater fan via ISY program


Design Rev 2.0

  • create fireplace controller with raspberry pi zero + OLED display that fits into single gang box with decora faceplate
  • Inspired from here:

Raspi0-box.jpg

Hardware

OLED color display based on SD1331

Lcds displays 684 LRG.jpg


Rpi-oled-connections bb.png
  • Rudimentary bit-banging Python driver: Gist at Github
  • Native driver package at Github
    • 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 DC to Raspberry Pi GPIO 23 (cyan wire). You can alternatively use any free digital GPIO pin for the DC pin.
    • Connect display CLK to Raspberry Pi SCLK (orange wire).
    • Connect display Data to Raspberry Pi MOSI (purple wire).
Rpi-spi-oled-ssd1331-connect.png


pi4j gpio
BCM GPIO

OLED B/W display based on SSD1306

  • address 0x7B
  • wiring:
Raspberry pi RaspberryPi I2C bb.png

Relay board

Temp Sensor

  • Type DS18b20
  • Amazon link

Software

Enclosure

  • the 3d-printable decora cover: at thingiverse
    • Dimensions:
    Device 6.66 x 3.30 cm
    Hole in trim plate 6.68 x 3.32 cm
    2 mm ( 0.20 cm) radius on the corners.
Decoracover.jpg

Tactile push button square cap.jpg

Design questions

How many buttons to control?

  1. ESCAPE/BACK
  2. UP
  3. DOWN
  4. SELECT/ENTER
  5. recessed reset button

?

Design Rev. 3.0

Sonoff-TH16.jpg
backside
  • Use Sonoff 16TH, install firmware found 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
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