ESP8266 Pinout Reference
One of the nice things about the ESP8266 is that it has a fair amount of GPIO pins to work with. You won’t have to juggle or multiplex your IO pins. However, there are a few things to keep in…
Soil Moisture Sensor Interfacing with NodeMCU
Overview of Soil Moisture Sensor Soil moisture is basically the content of water present in the soil. This can be measured using a soil moisture sensor which consists of two conducting probes that act as a probe. It can measure…
Wemos and PCF8591 example
The PCF8591 is a monolithically integrated, and a separate power supply, low-power, 8-bit CMOS data acquisition devices. The PCF8591 has the four analog inputs, one analog output and a serial I2C bus interface. PCF8591 three address pins A0, A1 and…
NodeMCU i2c Scanner on Arduino IDE
This tutorial of Robo India explains how to get address of i2c device connected to a NodeMCU using Arduino IDE. Detailed Tutorial 1. Introduction: 2C bus is a means of connecting several peripheral input and output devices that support I2C…
ESP8266 and Google Spreadsheet
Google Spreadsheet or Google Sheets with ESP8266 Nodemcu for Data Logging, Temp & Hum DHT11- So far I have covered majority of the IoT platforms for monitoring different types of sensors and for controlling different types of electrical devices. Usually for…
ESP8266analogRead
const int analogInPin = A0; // ESP8266 Analog Pin ADC0 = A0 int sensorValue = 0; // value read from the pot void setup() {// initialize serial communication at 115200Serial.begin(115200);} void loop() {// read the analog in valuesensorValue = analogRead(analogInPin);…
WeMos D1 ESP8266 WiFi ควบคุมเปิดปิดไฟ LED WebServer
WeMos D1เป็นบอร์ด ESP8266 ESP-8266EX ที่เพิ่มส่วนของ USB Serial สำหรับติดต่อ USB เพิ่มภาคจ่ายไฟเรกูเลต และขยายขาให้ต่อทดลองได้ง่ายเหมือน Arduino Uno สามารถเขียนโคดโดยใช้ Arduino IDE อุปกรณ์ที่ต้องใช้ใน บทความ สอนใช้งาน WeMos D1 ESP8266 WiFi ควบคุมเปิดปิดไฟ LED WebServer WeMos D1 Arduino WiFi UNO board ESP8266 Arduino IDE WeMos D1 Arduino WiFi UNO board…
WEMOS D1 – WLAN thermometer with DHT11 sensor
I explained how to connect and program the Wemos D1 in the tutorial WEMOS D1 – Arduino UNO compatible board with ESP8266 chip . In this tutorial I would like to connect a DHT11 sensor and display these values on a web page….
IoT | Connecting and Interfacing a DHT 11 with WeMos D1 Mini
A simple project to learn IoT by connecting a DHT11 temperature and humidity sensor with WeMos D1 Mini and interfacing the data to Blynk. Step 3: Set Up Blynk After download and installing the Blynk Apps from Google Play Store,…