iot_temp_sensors

IoT temperature sensor network used to monitor the heat in my attic

Active Dashboard

https://temp-sensor-mct.mybluemix.net/graphdata

Getting Started

Required Hardware

Raspberry Pi
- I am using Raspberry Pi version 1 Model B. I'd recommend a newer version
DS18B20 Thermal sensor, easily ordered online from a variety of retailers
- I ordered mine through eBay
- https://www.adafruit.com/product/381
A breadboard (for easy connecting)
- I already had one from an Arduino kit I own
Single LED
Jumper cables (purchased or home-made from 22 AWG)

Install and Configure your Raspberry Pi

Install Raspbian via NOOBS, just take the defaults, you can hack on it later
Enable SSH by default so you can SSH in and do the work sudo raspi-config

Select 5 Interfacing options
Select P2 enable SSH

Change the default password! The default password is 'raspberry', so change the password to something better
[Install your favorite editor (if not already provided)[(https://www.raspberrypi.org/documentation/linux/usage/text-editors.md)

sudo apt-get install vim

Configure your pi to boot with 1-wire GPIO support

sudo ./configure_w1_pi.sh

Reboot your pi

sudo reboot

Ready to hack

To sanity check your pi is configured with GPIO support, wire up a simple LED to GPIO 7 and run python led_flash.py. If things are properly configured and wired, the LED will flash on and off (really a dim) every second.

Follow the AdaFruit guide: https://learn.adafruit.com/adafruits-raspberry-pi-lesson-11-ds18b20-temperature-sensing/hardware

Relevant studies