Introduction

Features

• safe OTA firmware update - turns off all peripherals
• water tank height monitoring
• moisture level sensing
• RGB lightning

Components

1. Particle Photon
2. Motor shield by Hootie81
3. Power shield by @Hootie81
4. Moisture sensor
5. Diaphragm Liquid Pump
6. Neopixel ring

Pinout

Peripheral	Pin	Photon USB	Pin	Peripheral
	Vin		3V3
	GND		RST
	TX		VBAT
	RX		GND
	WKP		D7
	DAC		D6
SPI MOSI	A5		D5
SPI MISO	A4		D4
SPI SCK	A3		D3
SPI SS	A2		D2	ECHO
Moisture sensor	A1		D1	TRIG
Motor SS	A0		D0	Neopixel

Resources

1. Firebase <-> Particle Cloud tutorial
2. pulseIn for ultrasonic sensor
3. Spark Interval Timer