Esp8266 Serial Communication To Arduino

Posted By admin On 29.04.20

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Dec 16, 2016 Serial communication on pins TX/RX uses TTL logic levels 3.3V. Don’t connect these pins directly to an RS232 serial port; they operate at +/- 12V and can damage your ESP8266 board. Serial is used for communication between the Arduino board and a computer or other devices.
Serial Communication: Serial communication is a communication process wherein data transfer occurs by transmitting data one bit at a time in sequential order over a computer bus or a communication channel. It is the most widely used approach to transfer information between data processing equipment and peripherals.
The Arduino hardware has built-in support for serial communication on pins 0 and 1. The native serial support happens via a piece of hardware (built into the chip) called a UART. This hardware allows the Atmega chip to receive serial communication even while working on other tasks.
This Serial can be used to transmit data in USART mode to another Serial Device as well as see any Debug data in the Serial terminal. However, both the functionality can not be used simultaneously. The Tx Rx pair of Arduino can be connected to one pair of other device i.e. Either to the computer via the cable or to the Tx Rx of ESP8266.

Esp8266 Serial Communication To Arduino Free
Serial Communication Tutorial

Serial Communication between ESP2866-12 (NODE-MCU) and Arduino to increase the number of analog pins as my primary work.

ESP32 / ESP8266 Arduino: Serial communication with Python The objective of this post is to explain how to establish a Serial connection between a Python program and an Arduino program running on the ESP8266 and on the ESP32.

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Components and supplies

Arduino UNO & Genuino UNO

Arduino MEGA can be used.

NodeMCU ESP8266 Breakout Board

DHT11 Temperature & Humidity Sensor (4 pins)

Jumper wires (generic)

Apps and online services

Arduino IDE

Arduino IDE with ESP board manager.

adafruit.io

About this project

This project is all about serial communication between ESP8266-12(NODE-MCU) and Arduino. As we know ESP-12 have one analog pin where we can connect our analog sensor, But what else if we need more than one analog pin to connect more analog sensor and again if you want to send data to server like adafruit.io or your own server.

A video tutorial to follow, Hope it helps.

Serial communication between Node MCU and Arduino

Esp8266 serial communication to arduino pdf

Code