Examples with MCP3424GpioProvider com.pi4j.gpio.extension.mcp.MCP3424GpioProvider used on opensource projects

Example 1 with MCP3424GpioProvider

use of com.pi4j.gpio.extension.mcp.MCP3424GpioProvider in project openhab1-addons by openhab.

the class MCP3424Binding method bindGpioPin.

private void bindGpioPin(MCP3424BindingProvider provider, String itemName) {
    try {
        int address = provider.getBusAddress(itemName);
        MCP3424GpioProvider mcp = mcpProviders.get(address);
        if (mcp == null) {
            try {
                int gain = provider.getGain(itemName);
                int resolution = provider.getResolution(itemName);
                mcp = new MCP3424GpioProvider(I2CBus.BUS_1, address, resolution, gain);
                mcp.setMonitorInterval(pollingInterval);
            } catch (UnsupportedBusNumberException ex) {
                throw new IllegalArgumentException("Tried to access not available I2C bus");
            }
            mcpProviders.put(address, mcp);
        }
        mcp.setMonitorEnabled(false);
        Pin pin = provider.getPin(itemName);
        GpioPinAnalogInput input = gpio.provisionAnalogInputPin(mcp, pin, itemName);
        input.addListener(this);
        input.setTag(provider.getItem(itemName));
        gpioPins.put(itemName, input);
        mcp.setEventThreshold(0, input);
        mcp.setMonitorEnabled(true);
        logger.debug("Provisioned analog input for {}", itemName);
    } catch (IOException exception) {
        logger.error("I/O error {}", exception.getMessage());
    }
}

Example 2 with MCP3424GpioProvider

use of com.pi4j.gpio.extension.mcp.MCP3424GpioProvider in project openhab1-addons by openhab.

the class MCP3424Binding method handleGpioPinAnalogValueChangeEvent.

/**
     * Function will be called by Pi4J, if new conversion result is available.
     * On this time we can notify openhab, that something was changed.
     **/
@Override
public void handleGpioPinAnalogValueChangeEvent(GpioPinAnalogValueChangeEvent event) {
    GpioPin pin = event.getPin();
    MCP3424GpioProvider provider = (MCP3424GpioProvider) pin.getProvider();
    if (pin.getTag() instanceof NumberItem) {
        double value = provider.getAnalogValue(pin.getPin());
        try {
            this.eventPublisher.postUpdate(pin.getName(), new DecimalType(value));
        } catch (NumberFormatException exception) {
            logger.warn("Unable to convert '{}' for item {} to number", String.valueOf(value), pin.getName());
        }
        logger.debug("GPIO channel change: {} = {}", pin, value);
    } else if (pin.getTag() instanceof DimmerItem) {
        double value = provider.getPercentValue(pin.getPin());
        try {
            this.eventPublisher.postUpdate(pin.getName(), new PercentType((int) value));
        } catch (NumberFormatException e) {
            logger.warn("Unable to convert '{}' for item {} to number", String.valueOf(value), pin.getName());
        }
        logger.debug("GPIO channel change: {} = {}", pin, value);
    }
}