ProdBoard / IOT Weather Kit Support

Power switch Function

The ProdBoard has an onboard power switch using the the same design as Nanomesher Hackable Raspberry Pi Power Switch

For software installation, please follow one of below:

Enable i2c bus

sudo raspi-config



Samples Code

Examples for using the ProdBoard are here.

In order to use the examples, you will need to install the following dependent libraries.

Install essential libraries

sudo apt-get update
sudo apt-get install build-essential i2c-tools python-pip python-dev python-smbus git

GPIO Python Library

sudo apt-get install python-dev python-rpi.gpio

Luma.OLED Python Library

ProdBoard uses i2c OLED display with SH1106 controller.

Library Info: https://pypi.python.org/pypi/luma.oled
Install Instructions: http://luma-oled.readthedocs.io/en/latest/install.html

More display examples from Luma.OLED: https://github.com/rm-hull/luma.examples

To run the examples from Luma.OLED, dont forget to use “-d sh1106” option.

cd /home/pi/luma.examples
python examples/pi_logo.py -d sh1106

Download Nanomesher ProdBoard Samples

cd ~
git clone https://github.com/nanomesher/Nanomesher_ProdBoard.git

LIRC Setup

LIRC is a package that allows you to decode and send infra-red signals of many (but not all) commonly used remote controls.

LIRCDemo.py required LIRC to be installed.

To be able to run the example, do the following (assuming Raspbian):

  • Install LIRC
sudo apt-get install lirc
  • In /boot/config.txt, add/edit the following line
dtoverlay=lirc-rpi,gpio_in_pin=17,gpio_out_pin=22
  • Setup for i2c communications with display and LIRC for infrared in /etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with “#” are ignored.
i2c-dev
lirc_dev
lirc_rpi gpio_in_pin=17 gpio_out_pin=22
  • If using Raspbian Stretch or after, in /etc/lirc/hardware.conf , add/edit the following line
LIRCD_ARGS="--uinput --listen" 
LOAD_MODULES=true 
DRIVER="default" 
DEVICE="/dev/lirc0" 
MODULES="lirc_rpi"
  • If using Raspbian Stretch or after, in /etc/lirc/lirc_options.conf, add/edit the following line
[lircd]
nodaemon = False
#driver = devinput
#device = auto
driver = default
device = /dev/lirc0
  • Copy lirc settings files to /etc/lirc/ 
cd ~/Nanomesher_ProdBoard/lirc
sudo cp -rT ~/Nanomesher_ProdBoard/lirc /etc/lirc
  • Reboot
  • Test your lirc set up with irw and pressing your remote buttons

  • Install LIRC python library: https://pypi.python.org/pypi/python-lirc/  or use this method if you dont want to use python-lirc.

#For python 3.x

sudo apt-get install python3-lirc

#For python 2.x

sudo apt-get install python-lirc

List of Sample Code

  • ledDemo.py – Blink the LED Twice
  • SimpleButton.py – Simple polling button example
  • LIRCDemo.py – Using the remote control (top row , first 2 buttons from the left) to control the LED
  • DisplayDemo.py – Display IP address on the on screen display
  • EventBasedButtonsDemo.py – Using event driven approach to listen to button press
  • ProdBoardDemo.py – Using polling approach to listen to button press, with top 2 buttons triggering LED to toggle
  • WeatherDemo.py – Display humidity and temperature using SHT31 sensor. Need SHT31 library. See Weather Sensors section.

Weather Sensors

All weather sensors below uses i2c bus and needs to be enabled.

BMP180 Library – For Pressure Sensor

The recommended library is Adafruit_Python_BMP

cd ~
git clone https://github.com/adafruit/Adafruit_Python_BMP.git
cd Adafruit_Python_BMP
sudo python setup.py install

SHT31 Library – For Temperature and Humidity Sensor

The recommended library is Adafruit_Python_SHT31

cd ~
git clone https://github.com/ralf1070/Adafruit_Python_SHT31.git
cd Adafruit_Python_SHT31
sudo python setup.py install

CCS811 Air Quality Sensor – For air quality Sensor

  • Due to limitations of CCS811 sensor, the i2c port needs to be slowed down
sudo nano /boot/config.txt
  • Add this line to the file
dtparam=i2c_baudrate=10000
  • Reboot, and then install the library
 sudo pip install Adafruit_CCS811
  • Run i2cdetect to detect the i2c address
i2cdetect -y 1

*** If you have a CCS811 sensor (Blue colour pcb) which has address 0x5B, change the settings in the library

sudo nano /usr/local/lib/python2.7/dist-packages/Adafruit_CCS811/Adafruit_CCS811.py

Change CCS811_ADDRESS to 0x5B, save (Write out) and exit

PiAirMon.py – Air Monitor Utility using the above 3 sensors (BMP180 ,SHT31, CCS811 )