In this tutorial, we will show you how to send Whatsapp messages to your account with ESP8266 NodeMCU using Whatabot and callmebot free APIs. These free WhatsApp APIs can be helpful to send message notifications, sensor readings, motion detection, and door-opening alerts. We will see how to call these APIs using the HTTP client library … Read more
In this user guide, we will learn to interface MS5611 barometric pressure sensor module with ESP8266 NodeMCU. Firstly, we will introduce you to the MS5611 sensor including its pinout, features, and interfacing with ESP8266. Secondly, we will install the Arduino MS5611 library in Arduino IDE to access the sensor data. Lastly, we see two examples … Read more
In this user guide, we will learn to interface HTU21D Temperature and Humidity Sensor module with ESP8266 NodeMCU. Firstly, we will introduce you to HTU21D sensor including its pinout, features, and interfacing with the ESP8266 board. Secondly, we will install the Adafruit HTU21D library in Arduino IDE to access the sensor data. Lastly, we see … Read more
In this user guide, we will learn to interface SHT31 Temperature and Humidity Sensor module with ESP8266 NodeMCU. Firstly, we will introduce you to SHT31 sensor including its pinout, features, and interfacing with ESP8266. Secondly, we will install the Adafruit SHT31 library in Arduino IDE to access the sensor data. Lastly, we see two examples … Read more
In this tutorial, we will learn to publish sensor readings to Node-Red with ESP8266 MQTT using Miro-Python. We will perform MQTT communication with ESP8266 and Node-Red by publishing and subscribing to MQTT topics. There will be one ESP8266 MQTT publisher and Node-Red as a subscriber. We will publish DS18B20, DHT, and BME280 sensor readings to … Read more
In this ESP32/ESP8266 tutorial, we will learn to use ESP MQTT as a Publisher using MicroPython and subscribe through Node-Red. There will be one ESP32/ESP8266 MQTT publisher and Node-Red subscriber. We will publish DS18B20 sensor readings to MQTT with ESP32/ESP8266 and Node-Red Dashboard will subscribe to the MQTT topics and display sensor readings on the … Read more
In this ESP32 ESP8266 tutorial, we will learn to use ESP MQTT as a Publisher using MicroPython and subscribe through Node-Red. There will be one ESP32/ESP8266 MQTT publisher and Node-Red subscriber. We will publish DHT11 and DHT22 sensor readings to MQTT with ESP32/ESP8266 and Node-Red Dashboard will subscribe to the MQTT topics and display sensor … Read more
In this ESP32 and ESP8266 tutorial, we will learn to use ESP MQTT as a Publisher using MicroPython and subscribe through Node-Red. There will be one ESP32/ESP8266 MQTT publisher and Node-Red subscriber. We will publish BME280 sensor readings to MQTT with ESP32/ESP8266 and Node-Red Dashboard will subscribe to the MQTT topics and display sensor readings … Read more
In this ESP8266 tutorial, we will learn to use ESP8266 NodeMCU as an MQTT client with examples of Publisher and Subscriber using Arduino IDE. There will be one ESP8266 MQTT publisher and two subscribers. We will publish DS18B20 sensor readings to MQTT with ESP8266 and one ESP8266 will act as a subscriber and Node-Red Dashboard … Read more
In this ESP8266 tutorial, we will learn to use ESP8266 NodeMCU MQTT as a Publisher and Subscriber using Arduino IDE. There will be one ESP8266 MQTT publisher and two subscribers. We will publish BME280 sensor readings to MQTT with ESP8266 and one ESP8266 will act as a subscriber and Node-Red Dashboard will also subscribe to … Read more