Yet another Arduino-based plant watering system. This project aims to develop a kit for a flexible and modular watering system which requires minimal configuation or customization.

Minimum Installation Arduino Uno and a 3-5 volt water pump. Pinouts and config settings are included in arduinohydrata.ino. Upload the Sketch in the usual way.

RTC Installation Arduino Uno, a 3-5 volt water pump, and a DS1307 RTC. Pinouts and config settings are included in arduinohydrata.ino. Upload the Sketch in the usual way. The code has two commented-out lines which can be restored to stop the program if there is an error communicating with the RTC.

Serial.println("ERROR: Couldn't find RTC");
//while (1);

Serial.println("ERROR: RTC is NOT running. Check wiring.");
//while (1);

Moisture Sensor Installation FC-28 module not yet implemented.

Bluetooth Installation HC-05 module not yet implemented.

Full Build See the Parts subdirectory for parts and schematics.

• BTE13-010 - Arduino Pro Mini clone (<16.6 mA)
• DS1307 - Tiny RTC I2C module (~1.5 mA)
• HC-05 - Bluetooth module master/slave (<40mA)
• FC-28 - soil moisture sensor module
• Mini Pump - ShySky Tech(sic) 3.5-6v, 80-120L/H (<250mA)
• Misc: LED, resistor, transistor, pin headers, etc

Note: Wiring instructions may vary slightly between manufacturers. Check your pinouts.

BTE13-010 won't upload sketch

Many inexpensive Pro Mini clones ship without bootloaders. Use Nick Gammon's [Atmega bootloader programmer] (http:https://www.gammon.com.au/bootloader) to install an "Arduino/Genuino Uno" bootloader.

Bluetooth module won't echo back serial communications

HC-06 is a recieve-only 'slave' module; HC-05 has two modes. Obtain an HC-05 and set it to 'master' mode for bilateral communication.

Jay McKinnon - Initial work - Github Twitter

This project is licensed under the MIT License - see the LICENSE.md file for details

All praise to Adafruit and Nick Gammon!