https://github.com/caseywebb/mayfly

Environmental monitoring for Aquaculture and Hydroponics
https://github.com/caseywebb/mayfly

aquaculture aquaponics atlas-scientific circuitpython environmental-monitoring esp32 esp32-s2 hydroponics iot riscv ulp

Last synced: 11 days ago
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Environmental monitoring for Aquaculture and Hydroponics

• Host: GitHub
• URL: https://github.com/caseywebb/mayfly
• Owner: caseyWebb
• Created: 2023-03-11T01:46:08.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2023-06-02T01:01:24.000Z (over 1 year ago)
• Last Synced: 2024-10-18T07:13:07.088Z (2 months ago)
• Topics: aquaculture, aquaponics, atlas-scientific, circuitpython, environmental-monitoring, esp32, esp32-s2, hydroponics, iot, riscv, ulp
• Language: Python
• Homepage:
• Size: 432 KB
• Stars: 3
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Support: support/minielf.py

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README

        
# Mayfly

> Low-power IOT Environmental Monitoring with CircuitPython and the ESP32-S2 RISC-V ULP

This project collects various sensor readings, shows them on an e-paper display, and records to ThingSpeak. It's intended to be used in aquaculture and hydroponics, but it could be used for any application where you want to monitor, display, and record values with a battery-powered device.

```mermaid

flowchart TD

    INIT_ULP --> ULP_BOOT

    subgraph Shared Memory

    RTC_MEMORY[(RTC Memory)]

    end

    subgraph Main Processor

    MAIN_BOOT(Boot)

    ULP_WAKE{ULP wake?}

    INIT_WIFI[Initialize Wifi]

    INIT_TIME[Initialize Time]

    INIT_ULP[Start ULP]

    MAIN_SLEEP(Sleep)

    READ_RTC[Get Sensor Readings]

    UPDATE_DISPLAY[Update Display]

    MAIN_BOOT --> ULP_WAKE

    ULP_WAKE -->|Yes| INIT_WIFI --> INIT_TIME --> INIT_ULP --> MAIN_SLEEP

    ULP_WAKE -->|No| READ_RTC --> UPDATE_DISPLAY --> MAIN_SLEEP

    RTC_MEMORY --> READ_RTC

    end

    subgraph ULP

    ULP_BOOT(Boot)

    READ_SENSORS[Read Sensors]

    SENSOR_DIFF{Values changed?}

    UPDATE_RTC_MEMORY[Store Sensor Readings]

    SET_ULP_WAKE_TIMER[Set ULP Wake Timer]

    ULP_SHUTDOWN(ULP Shutdown)

    ULP_WAKE_TIMER[/ULP Wake Timer/]

    ULP_BOOT --> READ_SENSORS --> SENSOR_DIFF

    SENSOR_DIFF -->|Yes| UPDATE_RTC_MEMORY --> SET_ULP_WAKE_TIMER

    SENSOR_DIFF -->|No| SET_ULP_WAKE_TIMER

    UPDATE_RTC_MEMORY --> RTC_MEMORY

    ULP_WAKE_TIMER --> ULP_BOOT

    SET_ULP_WAKE_TIMER --> ULP_WAKE_TIMER

    SET_ULP_WAKE_TIMER --> ULP_SHUTDOWN

    RTC_MEMORY --> SENSOR_DIFF

    end

```

## Hardware

- [UnexpectedMaker FeatherS2][feathers2]

- [Adafruit Liquid Level Sensor][liquid-level-sensor]

- [Atlas Scientific Gravity Analog pH Kit][ph-kit]

- [Atlas Scientific Gravity Analog Dissolved Oxygen Kit][do-kit]

- [DS18B20 Temperature Sensor][ds18b20]

[feathers2]: https://feathers2.io/

[liquid-level-sensor]: https://www.adafruit.com/product/1786

[ph-kit]: https://atlas-scientific.com/kits/gravity-analog-ph-kit/

[do-kit]: https://atlas-scientific.com/kits/gravity-analog-do-kit/

[ds18b20]: https://www.digikey.com/en/datasheets/maxim-integrated/maxim-integrated-ds18b20