We will transfer DHT22 Sensor data from Arduino to NodeMCU and NodeMCU to Arduino. In this tutorial we will learn how to make serial communication between Arduino to ESP8266 & ESP8266 to Arduino.

Mar 22, 2019 · Use software UART Port (SUART Port: 2, 3 = SRX, STX) to communicate with NodeMCU. The SUART Port is created by including the following lines in the sketch. 3. Similarly, Hardware UART Port of NodeMCU (RX, TX = 3, 1) is permanently engaged with the Serial Monitor and IDE; so, leave it there.

May 20, 2023 · My question here is: what's the best way to send the nodeMCU data over to the Arduino device via serial communication related to my example and how should I implement it? Perhaps using readBytes if it's a possibility.

May 22, 2020 · I am making test program for my current project to send serial data from my ESP NodeMCU to Arduino Uno. I used Serial Communication to send 4 dummy variables which represent my sensor reading from MCU to arduino, but it didn't work. Can you help me? Here are my codes: Arduino Code

Nodemcu with Arduino – In this tutorial, you will learn how to do Serial communication between Arduino and Nodemcu esp8266 wifi module. For the demonstration purpose in this project LDR and variable resistor will be monitored using the Blynk Application.

Jul 22, 2022 · In this tutorial, we will learn to use the I2C Communication between ESP8266-NodeMCU and Arduino Boards. Different Arduino supports at least one I2C port. Similarly, Arduino Uno also has one I2C port (SCL and SDA). We will learn to configure NodeMCU as an I2C master and Arduino as I2C slave device.

Aug 16, 2024 · Arduino Nodemcu two way communication – In this Tutorial, you will learn how to do two way communication between Arduino and Blynk through Nodemcu esp8266 wifi module. At the end of this tutorial, you will be able to monitor multiple analog sensors and you will also be able to control multiple loads.

Sep 13, 2016 · In this blog we will see how to connect arduino to nodemcu and post data to a mqtt broker. Arduino will take temperature readings and send the readings to nodemcu over serial connection. Nodemcu will send a mqtt message for every reading it receives.

NodeMCU based ESP8266 has SPI (Serial Peripheral Interface) feature. It is used to communicate with SPI enabled devices such as seven-segment displays, EEPROM, MMC and SDC memory cards, etc. + Project

Sep 11, 2021 · With a USB cable, we were able to connect the NodeMCU with a computer via Serial. Arduino IDE already gives us the first use. With Serial Monitor, we can send commands or debug the functioning of our code. But the integration with other software is pretty powerful.