ti-dhome-sensors

Table of Contents

• Usage
• Hardware
• Models
  • Model 1
  • Model 2
• More readings

Arduino-based sensors library.

This is DIY Sensor unit used to capture plenty of metrics and send them over the air to central unit server.

Note	This project is part of a wider TiDhome Home Automation project.

The initial model units are heavily inspired from the venerable JeeLab Room node.

Usage

Sensors are placed in each room and are each monitoring few of below metrics:

• Temparature (1 or more sensor per unit)

• Humidity

• Pressure

• Light

• Move

• TODO: plant humidity

• TODO: gaz

• TODO: pH-meter / CO2

Eventualy, the various measure serve to:

• control electric heaters

• control VMC (home motorized air flow controler)

• alarm on various actions (plants, etc)

• etc

Hardware

Central board:

• JeeLink (full enclosure, see JeeLab web site)

Base board for sensors model:

• model 1 : RFM12B (868Mhz) JeeNode (arduino compatible + radio, see JeeLab web site)

• model 2 : RFM69CW (868Mhz) Arduino pro mini 3.3v or clone

Batteries: 3xAA or 1xAA+3.3v step-up, or other

Sensors (one or more per board):

• Temperature: DS18B20 (waterproof or not)

• Temparature + Humidity: SHT11, DHT22, HTU21

• Pressure: BMP85

• Light: standard LDR

• Move: TBD

• Plant humidity: TBD

• Gaz: TBD

• pH-meter / CO2: TBD

Models

Model 1

Model 1 was done in 2010, based entirely on JeeLab work.

Model 2

Model 2 was done in 2015, with little evolution from model 1.

More readings

• Check this circuit

To Check

• https://www.mysensors.org/apidocs-beta/MyHwESP32_8h_source.html

• https://www.mysensors.org/build/connect_radio

• https://github.com/mysensors/MySensors/tree/master

Fun IoT projects

• https://www.instructables.com/id/Save-Water-With-the-Shower-Water-Monitor/

• https://www.instructables.com/id/Battery-Powered-Door-Sensor-With-Home-Automation-I

• https://www.instructables.com/Autonomous-Solar-powered-Irrigation-Monitoring-Sta