JAGRO: Just Another Garden RObot

Extendable, Scalable. Data powered automation for your garden.

Features

• Remote monitoring of sensor data (Temperature, Moisture, Lighting, Pumps Control)
• Create schedules for regular tasks (Lighting)
• Create triggers to regulate environment (Temperature, Soil Moisture)
• Remote control (Control relays via mobile app)

Bill of Materials

These are the parts necessary to build a basic JAGRO node

• NodeMCU ESP8266 Microcontroller
• BLE280 Temperature, Humidity, Pressure sensor (air temperature, humidity)
• Capacitive Soil Humidity sensor (soil moisture)
• DS18B20 Water proof temperature sensor (soil temperature)
• 4x 5v Relay Control modules
• ATX Switching power supply
• 12v / 5v water pump
• Lighting / Ventilation of your choice (DC or AC powered)

NodeMCU Module design specs

Pinouts

D# pin | description / assignment

D0 | Relay #1 / Lighting D1 | I2C SDA (BME, LCD interface) D2 | I2C SCL (BME, LCD interface) D3 | Button 1 (Light_BTN) D4 | Button 3 (Emergency Stop) D5 | One wire data (Dallas OneWire interface) D6 | Relay #2 / Water pump D7 | Relay #3 / Fan, ventilation D8 | Relay #4 / Aux D9 | Button 2 (WATER_BTN) A0 | Soil humidity sensor

Building and uploading to NodeMCU microcontroller

Pre-reqs

• arduino-cli
• nodemcuv2 board definition
• Arduion libraries defined in JAGRO.ini Requires nodemcuv2 board definition has been installed
• To compile project and generate .elf binary file: $ ./compile.sh.
• To upload to a connected NodeMCU board
  • Find the com port with $ arduino-cli board list
  • Upload to the board with $ ./upload.sh COM#