TODO

Software TODO list

• Allow multiple probes to be averaged as control probe. Instead of "first non-disabled" add a checkbox for which probes should be averaged to generate the control temperature. Problem: Where to display/store this new temperature? For most it is a single probe, but this would make it look like there are 5 probes with one being duplicated.
• Telegram chat bot API in Alarm webui - https://api.telegram.org/bot[BOT_API_KEY]/sendMessage?chat_id=[MY_CHANNEL_NAME]&text=[MY_MESSAGE_TEXT]
• Startup/recovery derivative integral cut. Make the integral cut when setpoint is achieved dynamic based on temperature derivative
• Input temperature PT1 filter (configurable 1/Hz).
• PID output PT1 filter, or maybe just on the D term? (configurable)
• Linear regression temperature derivative. Track pit temperature change on Pi side and do a linear curve fit to use for D term instead of using moving average. Maybe even having a slider for full MA to full LR mixing.
• Allow 24H time display on home page
• A way to manually control the damper disconnected from the PID loop.
• When wifi can't connect, toast a message to the LCD. Maybe do a network scan and see if the network is even seen / is the right security?
• Add heatmap display of probes for visualization of grill temperature
• Add time autosync on login for people working without an internet connection
• Add ability to upload custom background image via usercss page.
• Make one probe a "Wet bulb" temperature for calculating humidity
• Light web page setpoint setting going to login page again
• Ability to set the colors of the LEDs in the web interface? Can store in uci file
• Adaptive setpoint mode, set a target time and have the setpoint vary to meet that time?
• avrupdate
  • Better integration and update-from-web. Part of larger automatic update process?
• Better interactivity with linkmeterd socket, ability to do actual query/response to HeaterMeter
• Allow archive, copy to / from archive. Archive location defaults to SD card but can use /tmp for testing
  • GZIP it?
  • Only get CFs that are used?
  • Download / upload?
• Support on-the-fly PID period for faster/slower updates?
• Archive library. Text file associated with each item
  • Snapshot HeaterMeter JSON config when archiving, for probe names and ability to reuse HM config
  • Date / Time, duration
  • Title
  • Short description
  • Annotations
  • Keywords
  • Upload a photo associated with it?
• Archived view
  • Start and End time
  • Add date to tooltip?
  • Add legend
  • Ability to trim out data before start / after end
  • Put the graph data as static in the page?
  • Copy entire heatermeter config snapshot when stashing
• Graph
  • Ability to toggle between absolute time and relative time from start
  • Ability to save auto upload home grpah png to imgur / facebook / twitter / Google+
  • Add annotations
  • Ability to trim the database
    • Can maybe do rrdtool dump | awk '/<row>/{if ($6 > 1406726460) print; next}{print}' | rrdtool restore
    • rrdtool needs restore functionality which needs libxml-2.0. That's what you get for using fsking XML!
    • Will need to invalidate the browser cache using some sort of unique request. File mod date/time?
• Indicator LEDs triggers
  • Probe degrees per hour above/below threshold (alarm when entering/leaving stall)
  • Temperature OK (temp within x% of setpoint). Pit probe only or for any probe?
  • High load / low fuel (average fan speed > x%)
  • "Food OK". Not sure what this one was
• Touch-friendly setpoint setting using vertical ... spin ... grid
• Alarms
  • Chrome To Phone / C2DM / GCM message
  • Elaped time notify
  • Low fuel alarm - if not in startup mode and average output is greater than or equal to x% for y sec sound alarm. Discusson
• Unknown probe Steinhart webui
• Easier initial setup
  • Captive portal if in AP mode.
  • eth0/wlan bridging. Needs 4addr support at the AP.
• HeaterMeter configuration profiles. Defaults, A, B. Selectable from "Reset Config?" on HeaterMeter. A and B could be names?
• Wifi Status LED
• Remote node
• Periodic Email/SMS updates (every hour, etc) with current status
• See who is connected to your HeaterMeter (netstat -an | grep :80 | grep ESTABLISHED) and be able to iptables ban someone.
• Web UI Rewrite
  • Show Output total, and also a breakdown of Fan output / servo position
  • Show an icon to indicate an alarm is active on that probe. Maybe a grayed alarm icon for each probe which can launch the alarm setting dialog for that probe.

HeaterMeter LIVE

• Integration into webui a place to "register" your HeaterMeter. Optional Country/Postal Code
• "Public" checkbox to include your heatermeter on the "Live" list
• Include dyndns service to access heatermeter from the internet
  • upnp firewall?
• User CSS gallery
• Store graph images? Photos?
• Cloud streaming version without direct access to device (ZeroMQ or mqtt?)

HeaterMeter PCB

• Allow use of one of the ADC pins to connect to a potentiometer to allow direct manual mode control based on pot position.
• Cuttable trace for LCD backlight in addition to 0 ohm resistor.
• Add "AUX" port. An output that runs through a mosfet that can either supply 3.3V, 5V or 12V as one of the configurable LEDs
• Integrate switching power supply into PCB?
• Physical rPi switch to allow booting in multiple network configurations.
  • Maybe a button to load the default config backup?