Cellular, LoRa, and Wi-Fi: Introducing the Next Generation of Notecards

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What’s New
Resources
Accelerators
Fully documented reference applications
Blog
Technical articles for developers
Community
Community projects and resources
Terminal
Connect to a Notecard in your browser
Blues.ioNotehub.io
Shop
Docs
Accelerator project logo

Water Quality Monitor

  • Arduino Firmware
  • Easy-to-Build Dashboard
  • Wiring Required
See project on GitHub
Request More Info

This project shows how to automate the process of monitoring water quality using the Notecard. By following the project's full instructions, you'll set up and configure a variety of water quality sensors, and take readings from those sensors at a configurable interval.

With your hardware in place, you'll next configure the Notecard to securely send your sensor readings to the cloud, and ultimately view your data in an easy-to-build web dashboard.

Read full instructions

Request More Info

Hardware

  • Blues Starter Kit
  • Gravity - Analog Industrial pH Sensor / Meter Pro Kit V2
  • Gravity - Analog ORP Sensor Meter for Arduino
  • Gravity - Analog TDS Sensor/ Meter for Arduino
  • Gravity - Analog Signal Isolators (x3)
  • Gravity - Waterproof DS18B20 Temperature Sensor Kit
  • 256 mV ORP Calibration Solution
  • 4.00 pH Calibration Solution
  • 7.00 pH Calibration Solution
  • 1000 ppm TDS Calibration Solution
  • Male-to-Male Jumper Wires
  • Breadboard
  • USB-A to Micro USB Cable

Key Features

  • Environment Variables
  • JSONata Event Processing
  • Using note.template

Accelerators

Fully documented reference applications for assembling Notecard- and Notehub-powered solutions. Get your next project up and running fast.

Indoor Floor-Level Tracker

A highly accurate floor-level tracker for response teams at emergency events.

  • Arduino Firmware
  • Swan
  • Web App Provided

Power Quality Monitoring

Monitor input AC power and AC output power and give alerts on changes.

  • Arduino Firmware
  • Energy Monitoring
  • SMS Notifications
  • Swan
  • Wiring Required

Valve Monitor

Monitor and control the open/closed state of a valve and measure liquid flow state with the Notecard and Swan.

  • Arduino Firmware
  • Swan
  • Web App Provided
  • Wiring Required
  • Zephyr Firmware
  • Fridge Fleet Monitor

    A LoRa-based temperature, humidity, and door open/close state monitoring system for a fleet of refrigerators.
    Learn more
    • LoRa
    • Web App Provided
  • A Better Mouse Trap

    LoRa-based motion-detection and SMS notification for mousetraps.
    Learn more
    • LoRa
    • SMS Notifications
  • Low-Power Digital Signage

    Use the Notecard and Notehub.io to keep a fleet of digital displays synchronized across a facility.
    Learn more
    • Arduino Firmware
    • Swan
  • Connected Analog Signage

    Use the Notecard and a Wi-Fi-capable MCU to update character values on an analog split-flap display.
    Learn more
    • CircuitPython
    • ESP32
  • Parking Lot Help Request

    A host-free notification system to alert attendants in a parking lot or facility that customers need assistance.
    Learn more
    • Hostless
    • SMS Notifications
    • Wiring Required
  • Piston Pump Motion Monitoring

    A host-free system for monitoring motion of a reciprocating piston pump with the built-in Notecard accelerometer.
    Learn more
    • Hostless
    • Motion Tracking
    • Easy-to-Build Dashboard
  • Flow-Rate Monitor

    Monitor and measure liquid flow rate.
    Learn more
    • Arduino Firmware
    • Swan
    • Web App Provided
    • Wiring Required
  • Generator Activity Monitor

    Monitor input and output AC power, and get configurable alerts on changes.
    Learn more
    • Arduino Firmware
    • Energy Monitoring
    • SMS Notifications
    • Swan
    • Wiring Required
  • Remote Power Control

    Monitor line and load power quality, and report power failures.
    Learn more
    • Arduino Firmware
    • Energy Monitoring
    • SMS Notifications
    • Swan
    • Wiring Required
  • Tool Usage-Cycle Tracking

    Monitor tool power, vibration, and alert when vibration is out of range.
    Learn more
    • Arduino Firmware
    • Energy Monitoring
    • SMS Notifications
    • Swan
    • Wiring Required
  • Cargo Tracker

    Track cargo location and send alerts when it leaves or enters a geofenced area.
    Learn more
    • Hostless
    • Geofencing
    • GPS/GNSS Tracking
  • Greenhouse Monitor

    Monitor ambient light, ambient temperature, soil moisture, and soil temperature within a greenhouse.
    Learn more
    • Arduino Firmware
    • Wiring Required
  • Power Outage Detection

    Monitor mains power with a USB connection and LiPo battery to send outage alerts.
    Learn more
    • Hostless
    • Mains-Powered
  • Refrigerator Monitor

    Monitor refrigerator temperature, humidity, and power using a Notecard.
    Learn more
    • Hostless
    • Mains-Powered
  • Temperature and Humidity Monitor

    Monitor temperature and humidity and send alerts using a Notecard, Swan and a BME280 sensor.
    Learn more
    • Arduino Firmware
    • Mains-Powered
    • Swan
    • Zephyr Firmware
  • Sign and Door Tilt Sensor

    Detect when a sign is knocked over or a door is opened or closed.
    Learn more
    • Hostless
    • Motion Tracking
  • Motor Monitor and Vibration

    Monitor a motor's activity and vibration level with a Notecard.
    Learn more
    • Hostless
    • Motion Tracking
  • Sump Level Monitor

    Monitor water level changes in a sump using a Notecard and a float switch.
    Learn more
    • Hostless
    • Soldering Required
  • Roadway Impact Detection

    Detect when a vehicle or other object collides with another object on a roadway.
    Learn more
    • Hostless
    • Motion Tracking
  • Freight Car Door Motion and Location

    Track the location of a freight car and determine the number of times its door was opened and closed.
    Learn more
    • Hostless
    • Wiring Required
    • GPS/GNSS Tracking
  • Animal Tracker

    Track animal location and send alerts when it leaves or enters a geofenced area.
    Learn more
    • Hostless
    • Geofencing
    • GPS/GNSS Tracking
  • Cellular-Connected Electronic Kiosk

    Download resources for an electronic kiosk display without an Internet connection, using a simple Python script.
    Learn more
    • Python
    • Raspberry Pi
    • Web App Provided
  • Door State Monitor

    Receive notifications when a door is opened or closed.
    Learn more
    • LoRa
  • Restroom Servicing Monitor

    Monitor restroom cleanliness across a facility.
    Learn more
    • LoRa
    • Wiring Required
  • Indoor Air Quality and Gas Leak Detector

    Monitor air quality throughout a facility, and detect gas leaks.
    Learn more
    • LoRa
  • Temperature and Smoke Detector

    Monitor temperature and detect smoke across a facility.
    Learn more
    • LoRa
    • Soldering Required
    • Wiring Required
  • Medical Panic Button

    Receive a notification when a fall is detected, and provide a panic button to alert a responder.
    Learn more
    • LoRa
    • Soldering Required
    • Wiring Required
  • Room Occupancy Monitor

    Receive notifications when motion is detected in a room, and when the room's door is opened or closed.
    Learn more
    • LoRa
  • Cellular Modbus Client

    Send requests and receive responses from Modbus servers via cellular.
    Learn more
    • Arduino Firmware
    • Modbus
    • Soldering Required
    • Wiring Required
  • CAN bus Vehicle Monitor

    Monitor vehicle telemetry information through a CAN interface.
    Learn more
    • CAN bus
    • Arduino Firmware
    • Soldering Required
    • Wiring Required
  • Vending Machine Monitor

    Monitor inventory and detect power failures in a vending machine.
    Learn more
    • Arduino Firmware
    • Soldering Required
  • Heat Index Monitor

    Monitor temperature, humidity, and heat index in an outdoor location.
    Learn more
    • Zephyr Firmware
  • Audio Classifier

    Monitor the environment for a particular sound and publish the detections to Notehub.
    Learn more
    • Machine Learning
    • Swan
  • Car Detector

    Detect passing cars with a camera and publish reports to the cloud via a cellular connection.
    Learn more
    • Machine Learning
    • MicroPython
    • Soldering Required
    • Wiring Required
  • Cold Chain Monitor

    Monitor a medication, and send SMS message for alert conditions, such as high temperature.
    Learn more
    • Arduino Firmware
    • ESP32
    • GPS/GNSS Tracking
    • Motion Tracking
    • SMS Notifications
    • Soldering Required
    • Wi-Fi Triangulation
    • Wiring Required
  • Cellular Smoke Detector Retrofit

    Retrofit a network of smoke detectors so that alarms trigger SMS alerts.
    Learn more
    • Hostless
    • SMS Notifications
    • Wiring Required
  • Water Quality Monitor

    Collect water quality metrics from various sensors and upload them to the cloud via a cellular connection.
    Learn more
    • Arduino Firmware
    • Easy-to-Build Dashboard
    • Wiring Required
  • HVAC Current Monitor

    Measure the current consumption of an HVAC unit and publish the measurements to the cloud.
    Learn more
    • Arduino Firmware
    • Soldering Required
    • Wiring Required

Coming Soon

  • Wildlife Detector

    Monitor for and detect wildlife in a remote location.
    Learn more
    • Machine Learning
  • Propane Tank Fuel Gauge

    Monitor the pressure and volume in a propane tank.
    Learn more
    • Blood Pressure Monitor

      Capture readings from a Bluetooth blood pressure monitor and report to the cloud.
      Learn more
      • Water Softener Salt Level Monitor

        Measure salt level in a water softener and send alerts when the level is low.
        Learn more
        • Lightning Detector

          Detect lightning in an area, and use ML to correlate to local power issues or fires.
          Learn more
          • Machine Learning
        • Cellular Speed Trap

          Detect vehicle speed and send alerts for speeding vehicles.
          Learn more
          • Machine Learning
        • Boat Engine Runtime and Location

          Monitor boat location and engine state.
          Learn more
          • Machine Learning
          • Solar-Powered

        Have an app idea that's not on this list? Let us know

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