lanot

Local Area Network Of Things

Overview

lanot is a collection of applications and application framework/framework support.

Some things have changed since this was made and it will be updated soon, just adding some pictures of the finished rev 2 PCB and prototype chassis

prometheus

src/core/prometheus micropython device framework

Supports cpython testing via micropython-mockup

Currently fully supporting the esp8266 (12E) and esp32 platforms, more might be added later.

HTML5 client can be found under test/html5ui

Proxy clients for devices are under test/html5ui

Python client proxy generator

Requirements

micropython

• built with support for MICROPY_PY_FUNCTION_ATTRS enabled
  • firmware for wipy (1.0), esp8266 (12E) and esp32 can be found under deploy/micropython
• src/core/prometheus directory symlinked under ports/esp*/modules/
• additional hardware drivers may be included
  • CCS811 tools/CCS811 from https://github.com/Notthemarsian/CCS811.git
  • max7219 tools/micropython-max7219 from https://github.com/mcauser/micropython-max7219.git
  • tinyrtc-i2c tools/micropython-tinyrtc-i2c from https://github.com/mcauser/micropython-tinyrtc-i2c.git

cpython

• add micropython-mockup to PYTHONPATH or sys.path
• all IO has (limited) simulated input and output
• might look into supporting raspberry pi in the future

Example devices can be found under src/devices

• chain-test
  • test device that chains the client proxy C(B(A))) (no pun intended)
• cpython-local-test
  • cpython compatible test device
• esp32-greenhouse01/02
  • esp32 device that measures humidity via 6 hygrometers (soil water via adc0-5) and a dht11
  • displays values on a i2c ssd1306 oled screen (64x128)
• esp-rover01
  • rover (robot) wrapper for arduino h-bridge device
• esp32-test01-03
  • development test devices, changes over time
• esp8266-nodetest
  • development test device, should implement everything supported on the rev02b pcb
  • onewire (dht11), ds18b20, neopixel, i2c (ssd1306, ccs822, ds1307, nano ir & gpio extender)
• esp8266-sensor01/02
  • dht & ds18b20 temperature and humidity sensors

Current hardware support

Note: pin typically means an instance of Machine.Pin

prometheus.Prometheus.Led(pin, inverted=False, state=None) - light emitting diode

Generic node example:

self.integrated_led = prometheus.Led(machine.Pin(2, machine.Pin.OUT), inverted=True)
self.register(prefix='i', integrated_led=self.integrated_led)

prometheus.Prometheus.Digital(pin, inverted=False) - digital output, similar to Led

Generic node example:

self.digital_relay = prometheus.Digital(machine.Pin(2, machine.Pin.OUT))
self.register(prefix='r', integrated_led=self.digital_relay)

prometheus.Prometheus.Adc(pin) - Analog to digital converter, wrapper for the single ADC on esp8266, and the 6 that are typically exposed on esp32

esp8266 node example:

self.adc1 = prometheus.Adc(0)
self.register(prefix='a', adc1=self.adc1)

esp32 node example:

self.hygrometer01 = prometheus.Adc(machine.Pin(36, machine.Pin.IN))
self.register(prefix='h1', hygrometer01=self.hygrometer01)
self.hygrometer01.adc.width(machine.ADC.WIDTH_12BIT)
self.hygrometer01.adc.atten(machine.ADC.ATTN_11DB)

prometheus.dht11.Dht11(pin), prometheus.dht22.Dht22(pin) - DHT11/22 temperature and humidity sensor

Generic node example:

self.dht11 = prometheus.dht11.Dht11(machine.Pin(12, machine.Pin.OUT))
self.register(prefix='d', dht11=self.dht11)

prometheus.pds18x20.Ds18x20(pin=None, ow=None) - ds18x20 onewire temperature sensor

Generic node example:

self.dsb = prometheus.pds18x20.Ds18x20(ow=self.onewire)
self.register(prefix='s', dsb=self.dsb)

Devices that will be supported soon:

• ssd1306 oled display of various sizes (64x128 is common)
• ccs822 air quality sensor (co2 & ppm)
• ds1307+ real time clock
• max7219 (led matrix, e.g. 8x32)
• neopixel (rgb led matrix, chain, or similar)
• nanoi2c (subproject)
• ads1115 (4 channel adc)