f0rmatme / server

An automated hydroponic deep water culture grow system built on nodejs using arduino, raspberry pi, relays, peristaltic pumps, and various sensors (ph, 1wire, ultrasonic, dht22, etc)

GrowLab

An automated hydroponic system

A Washington DC based hydroponic lab using a deep water culture system.

Table of Contents

• Electronics
• Sensors
• Grow System
• Install

Electronics

• Raspberry Pi 3 Model B
• Peristalic Pumps (x8) (PH up & down + nutrients)
• Fill Valve
• Drain Valve
• 1CH Relay - control AC
• Motor Hat - control peristatlic pumps
• Arduino Hat
• Power Receptacles
• 4CH Relay - control receptacles
• 2CH Relay - control valves

Sensors

• Light Sensor - TSL2591
• PH Sensor - SEN0161
• Water Temperature Probes - DS18B20
• Ultrasonic - HC-SR04 (for water level)
• Humidity & Temperature - DHT22

Grow System

• Water Chiller
• Water Pump (x2) - draining & water chiller
• Water Pump - top feed distribution
• Water Pump Manifold
• Exhaust
• Air Stone/Diffuser
• Air Pump
• Light
• Light Bulbs
• Nutrient Storage for Pumps

Install

enable ip_tables

sudo modprobe ip_tables
sudo echo 'ip_tables' >> /etc/modules

update /etc/rc.local

# Forward port 80 and 443 so the
# web server can run at normal permissions
sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080
sudo iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 3000

load /etc/rc.local

sudo /etc/rc.local

generate ssl csr and generate ssl certificate

openssl req -nodes -newkey rsa:2048 -keyout private.key -out server.csr

install pm2 and setup startup scripts

sudo npm install pm2 -g
pm2 startup

setup config.js & grow.json, then start index.js

git clone https://github.com/krahimian/growlab.git
cd growlab
npm install
cp config.sample.js config.js
cp grow.sample.json grow.json
pm2 start index.js --watch