3D PRINTER WATCH DOG GUARDIAN

Added Sensor detection on boot 

Added smoke sensor MQ2 - Tests ppm and checks air quality while reading temperatures 

Updated Intro screen to include mode, smoke MQ2, Alarm state.

typical dump from board 

Smoke Sensor Installed
Smoke Sensor Reading :343
Concentration of gas 
LPG: 522 ppm
CO: 17465 ppm
Smoke: 1917 ppm
00Reading Mode type :0
Storing Mode type :0
Checking for Sensors connected to the board
Error Check Sensors - Not Connected 
Error Check Sensors - Not Connected 
Error Check Sensors - Not Connected 
Error Check Sensors - Not Connected 
Error Check Sensors - Not Connected 
Error Check Sensors - Not Connected 

08/07/2018

Add alarm screen with buzzer, sounds buzzer when alarm is triggered ! 

saves alarm state to eeprom . 

-- Stable version - Available in my tindie store ! 

-Still working on wifi options

To do 

second menu screen 

wifi option 

add some more nice features ! 

04.07.2018

Fixed alarm status page and red button - now when a sensor overshoots and meets the set temp an thermal runaway screen appears and buzzer sounds to alert user, then screen moves to a screen to reset the condition using the red button. 

I am adding an MQ2 sensor , to detect  dangerous gases and smoke. still awaiting sensor but coding is already set. 

To test the prototype on my delta printer and next is to do a nice case for it ! 

Soon this project will be available in my tindie page !

Software Log Update 

02/07/2018

Added feature to display the menu according to the mode jumpers selected 

added  caution thermal screen when alarm is triggered 

added reset screen and button option to reset the alarm 

To test alarm screen 

To do 

Add another menu screen to include more menu features !

Add wifi option 

Add status screen.

27/06/2018

Added 

-Splash screen 3D  Guardian 

-Icons for main screen 

-formatted the set temp and alarm on screen 

-added reading of 3 sensors 

- added condition to monitor temperatures per channel with set temp and trigger the alarm 

-added the menu feature 

-added Instant saving to eeprom of set temp values in case of power cut. 

To Do : 

- ranges when adjusting set temp 

- add jumpers 2 to define 1 or 2 hotends 

- add jumper to define id heatbed is installed

- add gui graphic thermal runaway screen when alarm triggered !

- test it in a real scenario ! 

- make tweaks with icons 

25/06/2018 

- coded the core and added the splash logo and main screen icons.

- added to monitor 3 NTC sensors 

- added set temp value and sensor reading on oled display

To do 

- add menu system to edit the max temp and set temp values 

- add the conditionals to check for

- add the warning icons and thermal runaway icons 

- add buzzer to warn user 

- add counter to allow pool before triggering realy

- add save to eeprom to save all details 

- add alarm tone if over temp detected.