• Update Home Assistant on CentOS 7

    CentOS 7 sucks because the default version of Python is 2.7. To run Home Assistant you need at least Python 3.5. Fortunately you can install other versions of Python alongside the default Python 2.7 installation. These instructions assume that you already have installed Home Assistant.

    • First install Python 3.6.
    • Set the Python virtual environment to use 3.6: #scl enable rh-python36 bash
    • Do the upgrade: #pip3 install –user –upgrade homeassistant

  • Programming the Sonoff with Tasmota using the Arduino IDE

    1. Make sure you configured the IDE as described in Prerequisite!
    2. Load the file sonoff.ino into the IDE.
    3. In the Arduino IDE for sonoff select from Tools Board Generic ESP8266 Module ( Tools Board Generic ESP8285 Module for CH4 version) and set the following options:
    • Upload Using: Serial
    • Flash Mode: DOUT
    • Flash Frequency: 40MHz
    • CPU Frequency: 80MHz
    • Flash Size: 1M (64K SPIFFS) ⚠️️**If Version 5.x.x -> Flash Size: “1M (no SPIFFS)”**⚠️️
    • Debug Port: Disabled
    • Debug Level: None
    • Reset Method: ck
    • Upload Speed: 115200
    • Port: Your COM port connected to sonoff
    1. Open user_config.h and configure your WiFi settings and optionally your MQTT, Syslog, WebServer, NTP, etc. settings
    2. Verify and/or compile the project and upload to your sonoff using the serial connection established above.

  • Enabling 433Utils on the Rasberry Pi

    First install wiringPI to access the GPIO headers on the PI.


    git clone git://git.drogon.net/wiringPi && cd wiringPi &&./build

    Confirm the wiringPI library is working by listing the GPIO pin allocation:

    gpio -v
    gpio readall

    Should display something like:

     +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+
     | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
     +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
     |     |     |    3.3v |      |   |  1 || 2  |   |      | 5v      |     |     |
     |   2 |   8 |   SDA.1 |   IN | 1 |  3 || 4  |   |      | 5v      |     |     |
     |   3 |   9 |   SCL.1 |   IN | 1 |  5 || 6  |   |      | 0v      |     |     |
     |   4 |   7 | GPIO. 7 |   IN | 1 |  7 || 8  | 0 | IN   | TxD     | 15  | 14  |
     |     |     |      0v |      |   |  9 || 10 | 1 | IN   | RxD     | 16  | 15  |
     |  17 |   0 | GPIO. 0 |   IN | 0 | 11 || 12 | 0 | IN   | GPIO. 1 | 1   | 18  |
     |  27 |   2 | GPIO. 2 |   IN | 0 | 13 || 14 |   |      | 0v      |     |     |
     |  22 |   3 | GPIO. 3 |   IN | 0 | 15 || 16 | 0 | IN   | GPIO. 4 | 4   | 23  |
     |     |     |    3.3v |      |   | 17 || 18 | 0 | IN   | GPIO. 5 | 5   | 24  |
     |  10 |  12 |    MOSI |   IN | 0 | 19 || 20 |   |      | 0v      |     |     |
     |   9 |  13 |    MISO |   IN | 0 | 21 || 22 | 0 | IN   | GPIO. 6 | 6   | 25  |
     |  11 |  14 |    SCLK |   IN | 0 | 23 || 24 | 1 | IN   | CE0     | 10  | 8   |
     |     |     |      0v |      |   | 25 || 26 | 1 | IN   | CE1     | 11  | 7   |
     |   0 |  30 |   SDA.0 |   IN | 1 | 27 || 28 | 1 | IN   | SCL.0   | 31  | 1   |
     |   5 |  21 | GPIO.21 |   IN | 1 | 29 || 30 |   |      | 0v      |     |     |
     |   6 |  22 | GPIO.22 |   IN | 1 | 31 || 32 | 0 | IN   | GPIO.26 | 26  | 12  |
     |  13 |  23 | GPIO.23 |   IN | 0 | 33 || 34 |   |      | 0v      |     |     |
     |  19 |  24 | GPIO.24 |   IN | 0 | 35 || 36 | 0 | IN   | GPIO.27 | 27  | 16  |
     |  26 |  25 | GPIO.25 |   IN | 0 | 37 || 38 | 0 | IN   | GPIO.28 | 28  | 20  |
     |     |     |      0v |      |   | 39 || 40 | 0 | IN   | GPIO.29 | 29  | 21  |
     +-----+-----+---------+------+---+----++----+---+------+---------+-----+-----+
     | BCM | wPi |   Name  | Mode | V | Physical | V | Mode | Name    | wPi | BCM |
     +-----+-----+---------+------+---+---Pi 3---+---+------+---------+-----+-----+
    

    Next install the 433Util package:

    git clone https://github.com/rotv/433Utils.git
    cd 433Utils
    git submodule init
    git submodule update
    cd RPi_utils
    make