How to Use MQTT With the Raspberry Pi and ESP8266
In this Instructable, I will explain what the MQTT protocol is and how it is used to communicate between devices.Then, as a practical demonstration, I shall show you how to setup a simple two client system, where an ESP8266 module will send a message to a Python program when a button is pushed. Specifically, I […]
IoT based Smart Irrigation System using Soil Moisture Sensor and ESP8266 NodeMCU
IoT based Smart Irrigation System using Soil Moisture Sensor and ESP8266 NodeMCU Most of the farmers use large portions of farming land and it becomes very difficult to reach and track each corner of large lands. Sometime there is a possibility of uneven water sprinkles. This result in the bad quality crops which further leads […]
ADS1115 analog-to-digital converter and ESP8266
The ADS1115 device is a precision, low-power, 16-bit, I2C-compatible, analog-to-digital converters (ADCs) offered in an ultra-small, leadless, X2QFN-10 package, and a VSSOP-10 package. The ADS1115 device incorporates a low-drift voltage reference and an oscillator. The ADS1115 also incorporate a programmable gain amplifier and a digital comparator. These features, along with a wide operating supply range, […]