Planto-Manager

Description:

This is an embedded project aimed at monitoring and caring for a potted plant. Device is able to monitor room temperature and humidity using the DHT11. It can also measure the soil moisture by utilizing a personally designed soil moisture sensor, influenced by Grove's Capacitor Soil Moisture Sensor. Additionally, the device is able to track time and set alarms using the DS3231 RTC module. A 16x2 Character LCD was used to display relevant information. Lastly, given the simplicity of the tasks and the low cost, the firmware was developed on an Atmega328P.

Libraries:

Atmel Start Configuration Files

Images:

Planto Manager System

Planto Manager System Wiring

Soil Moisture Sensor PCB Layout

Soil Moisture Sensor Reading (Dry Case)

Soil Moisture Sensor Reading (Moist Case)

Future Plan

• Switch to Adafruit BME280 sensor since it supports I2C. This will free up pins and reduce the timing issues faced with the DHT11
• Implement a Keypad module to allow user to inter inferace with device out of debug mode.
• Fix Soil moisture sensor code bugs.
• Implement I2C I/O Expander (MCP23017-E/SP-ND) to reduce number of pins used by the LCD and Keypad
• Implement reworks and design upgrades to Soil Moisture Sensor
• Design and build container for device