This time the integration of ESP8266 and the Node-RED platform has been made integrating an actuator in this case a servo controlled by PWM with rotation from 0 to 180 degrees.
From an HMI or SCADA Web creator on Node-Red-Dashboard using as base the MQTT Protocol and pubsubclient library converting the ESP8266 into MQTT Client.
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Step 1: Install Node-RED
Step 2: Materials
1 Regulator LDV33CV 5 a 3.3V
Note: To successfully complete this tutorial you must perform the following tutorials.
Previous tutorials Recommended
Step 3: Video Test ESP8266 Control Servo MQTT Node-Red IoT #3
Step 4: Images
According to the tests performed, the MQTT protocol is very fast,
allowing communication between Node-RED and ESP8266 to be almost in real time.
From certain protocols we have tested, we consider and recommend implementing the MQTT for your IoT projects
Step 5: Video Tutorial ESP8266 Control Servo MQTT Node-Red IoT #4
More information and Downloads code on this project :
Tutorial ESP8266 Control Servo Node-RED MQTT (Mosquitto) IoT #2