Hacking around Z-Wave smart home gateway based on Raspberry Pi and making your own Z-Wave device based on Z-Uno.

Location: Lemanicus Village (https://map.events.ccc.de/camp/2023/map/#20/53.0324/13.3065)

(this session is the same as on the 16th of Aug)

Please take with you:

• Your laptop with
• Access to the internet
• Arduino IDE or VS code installed
• Z-Uno package installed in Arduino IDE (see https://z-uno.z-wave.me/install for details - we will help you with this during the workshop)
• Your Raspberry Pi 3/4 with Raspbian OS (optional)
• Arduino-compatible sensors to build your own Z-Wave sensor (optional)
• Your Z-Wave stuff if any (optional)

Workshop sections 🔗

• What is Z-Wave and where should you use it
• Z-Way controller and RaZberry/WB7 hardware: Controlling switches, Reading sensor/switch values, Making rules, Using JS API
• Z-Uno prototyping board: Making Simple Switch, Adding more stuff
• Z-Uno Shield and Z-Uno Configurator
• Z-Uno Modules

Usefull links for the workshop 🔗

Z-Way controllers on the workshop 🔗

Controller (EU, 868 MHz)

• Smart Home UI http://192.168.88.22:8083
• Expert UI http://192.168.88.22:8083/expert
• WiFi SSID: Z-Wave-RPi-xxxx / PSK: ccc-2023
• Smart Home User: admin / Password: ccc

Z-Way documentation 🔗

• Installing Z-Way https://z-wave.me/z-way/download-z-way/
• Z-Way doc https://z-wave.me/manual/z-way
• Z-Way JS engine GitHub https://github.com/Z-Wave-Me/home-automation/

Z-Way workshop materials 🔗

• Making rules: Settings -> Apps -> Local -> IfThen -> Add
• Turning on/off a device /ZWaveAPI/Run/devices[NNN].SwitchBinary.Set(0 or 1)
• Reading switch value /ZWaveAPI/Run/devices[NNN].SwitchBinary.data.level.value
• Reading sensor value /ZWaveAPI/Run/devices[NNN].SensorBinary.data[12].level.value
• Using JS API /JS/Run/var v = 1; setInterval(function() { zway.devices[NNN].SwitchBinary.Set(v); v = 1-v;}, 2000);

Z-Uno documentation 🔗

• Quick Intro https://z-uno.z-wave.me/getting-started/quick-introduction-in-z-uno/
• Installation howto https://z-uno.z-wave.me/install
• Language Reference https://z-uno.z-wave.me/reference/
• Examples https://z-uno.z-wave.me/examples/
• Z-Uno Shield https://z-uno.z-wave.me/shield/
• Z-Uno Shield Configurator https://z-uno.z-wave.me/shield/configurator/
• Z-Uno GitHub https://github.com/Z-Wave-Me/Z-Uno-Core/

Z-Uno settings 🔗

Make sure to configure in Arduino IDE:

• File -> Preferences -> Add package source URL http://z-uno.z-wave.me/files/z-uno/package_z-wave.me_index.json
• Tools -> Board -> Board Manager -> Z-Uno 2.1.5
• Tools -> Board -> Z-Uno
• Tools -> Programmer -> Z-Uno
• Tools -> Port -> /dev/ttyUSB0 or /dev/ttyUSB1
• Tools -> Frequency EU/RU (depending on your controller)
• Tools -> Security none or S0 or S2 - up to you

You might also need to add your user to dialout group to have permissions for /dev/ttyUSB*

Z-Uno workshop materials 🔗

Sketch for Simple Switch:

ZUNO_SETUP_CHANNELS(ZUNO_SWITCH_BINARY(state, 0));

byte state = 0;

void setup() {
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, state ? HIGH : LOW);
}

Sketch in getter/setter style:

ZUNO_SETUP_CHANNELS(
  ZUNO_SWITCH_BINARY(getter, setter),
  ZUNO_SENSOR_BINARY_DOOR_WINDOW(doorGetter)
);

byte state = 0;
byte door = 0, lastDoor = 0xff;

void setup() {
  pinMode(13, OUTPUT);
  pinMode(18, INPUT);
}

void loop() {
  digitalWrite(13, state ? HIGH : LOW);

  door = digitalRead(18) == LOW ? 0xff : 0;
  if (door != lastDoor) zunoSendReport(2); // push update of channel 2
  lastDoor = door;
}

void setter(byte val) {
  state = val;
}

byte getter() {
  return state;
}

byte doorGetter() {
  return door;
}