![IoT con Raspberry Pi: Node-RED y MQTT, control de los GPIO con wiringPi y RPI, Python y C, UART, SPI, I2C, USB, Camara, Sonido, etc - Peco, Sr. Jose M.: 9781541216709 - AbeBooks IoT con Raspberry Pi: Node-RED y MQTT, control de los GPIO con wiringPi y RPI, Python y C, UART, SPI, I2C, USB, Camara, Sonido, etc - Peco, Sr. Jose M.: 9781541216709 - AbeBooks](https://pictures.abebooks.com/isbn/9781541216709-uk.jpg)
IoT con Raspberry Pi: Node-RED y MQTT, control de los GPIO con wiringPi y RPI, Python y C, UART, SPI, I2C, USB, Camara, Sonido, etc - Peco, Sr. Jose M.: 9781541216709 - AbeBooks
GitHub - BitStab/pi-mqtt-gpio: Expose GPIO modules (Raspberry Pi, Beaglebone, PCF8754, PiFace2 etc.) and digital sensors (LM75 etc.) to an MQTT server for remote control and monitoring.
Source Simian's mqtt-gpio Aims to Simplify Connecting GPIO Pins to MQTT Topics for Home Automation - Hackster.io
![Troubles getting external raspberry pi's GPIOs as mqtt switches to work - Configuration - Home Assistant Community Troubles getting external raspberry pi's GPIOs as mqtt switches to work - Configuration - Home Assistant Community](https://community-assets.home-assistant.io/original/3X/3/8/380050e92232ef96649f1c9982ab795c40cb9e0d.png)