jaredjensen / battery-monitor

An Arduino-based battery monitor with remote reporting

Battery Monitor

Overview
Operation
WiFi Firmware Update
Shield Design

Overview

This project is a battery monitor that reports a battery's current voltage on a regular interval to a remote API that can capture trends, send alerts, etc. It contains two components:

Component	Purpose
Sender	An Arduino-based voltage monitor
Receiver	TBD

Operation

Startup

When the unit is powered on, it will attempt to establish a wifi connection.

Sequence	Meaning
Blue, Blue, Blue	Attempting wifi connection
Green, Green, Green	Connected to wifi
Red, Red, Red	Failed to connect to wifi

Monitoring

After startup, the unit will sample the battery voltage on an interval and attempt to report the voltage to the remote endpoint.

Sequence	Meaning
Green, Green	>80% voltage
Yellow, Yellow	60-80% voltage
Red, Red	<60% voltage
Blue, Green	Successfully reported voltage
Blue, Red	Failed to report voltage

WiFi Firmware Update

1. Open the sketch Examples > WiFi101 > FirmwareUpdater
2. Add WiFi.setPins(8,7,4,2); in setup() after the serial port is initialized
3. Upload the sketch
4. Go to Tools > WiFi101 / WiFiNINA Firmware Updater
5. Select port and click Test Connection
6. Select firmware and click Update Firmware

Shield Design