Overview

[tablatronix]

This is mostly for personal use.

I am collecting and abstracting some basic stuff I need to make quick widgets.

atm, i work mostly with esp8266 arduino, so that will be base, but can be easily changed.

I want to make a collection of libraries, then a collection of wrappers for those, not sure if I will use full blown classes for these, as I am new to C++ and dealing with the includes and management is a pain, not sure if there is a dependencies/package manager for this stuff like in the scripting world, such as bower etc.

Requirements

• Core Esp8266 stable
  • LCD/i2c
    • custom icons array, dynamic swapping of the 8
    • big font support, conflicts with above, allow multiline still
    • possible menu system, lightweight array of callbacks etc.
  • Buttons input, 2 minimun
    • support for at least one to allow held low during boot, GPIO0 and GPIO2 should be fine and usually already have pullups on dev boards.
  • Detect multiple press durations and debounce, fast, short, long, medium presses, definable for speed, probably just loop detect, interrupts not needed.
  • RGBW indicator support
    • ws2812b/neopixel support, basic, for small graphs and indicators only, probably bitbang or small
      asm looper, no library, basic animation helpers.
    • if using a single led and basic color updating now and then, I can get away with native digitalwrites
    • if needing to do animations or breathe/fade effects or strips, then I have pulled out esp8266.c from the adafruit\neopoxel lib for raw gpio and timing controls ( this is needed because you will get interrupt glitches in the led output ( presents as bright flashes ) if using a slowed method.
  • Rotary encoder support, optional
  • Temperature / Humidity libs
    • DHT11/22
    • onewire/DS18B20 etc
    • SHT11 ?
• wifi manager
• httpd/websockets/mqtt/lightweight js framework
• smoothing
  • average/sample select, basic methods, jitter rejection
  • kalman filtering
  • process control ?
• timer/scheduler

Functionality

• LCD field assignment, easily manage blocks of fixed width, with char padding, to prevent use of clear, or artifacts
• channel assignments for button states and digital/analog values, to easily assign track and submit values to places, maybe add a basic formatter.

[tablatronix]

Looks like I may have missed something, but my board won't boot if either gpio 0 or 2 are low on power up. I know 0 is flash, I didnt not realize 0 & 2 have to be high on normal boot.

• change button0, button1 to use at least one gpio that is not 0,2 and add pullup.
• add decoupling cap to neopixel and resistor limit as per spec, works ok without them for now
• add optional gpio control of lcd backlight transistor, for pwm control ( check transistor type and speed on i2c module )
• add ambient light sensor, good for brightness controls of indicators, backlights and basic movement detection etc, GPIO RC or adc
• add buzzer