Hello there, Currently I am doing a school project about water quality. I have connected many sensors such as DF Robot's 5v pH sensor, 5v Turbidity sensor and a TDS sensor to a Ardunio Uno. I've also connected a I2C Lcd to the Arduino UNO to display what the sensors are showing. All of that works. …

I have problem to configure ESP32 as I2C-Slave. So, I have configured ESP32 as I2C-Master and UNO as I2C-Slave. The working sketches are given below ; where, ESP32 recognizes UNO as I2-Slave at slaveAddress 0x23. Connect your all 5V sensors with UNO and collect data from UNO by the ESP32 using I2C p…

Communication between Ardunio Uno and ESP32 other than I2C

Projects Networking, Protocols, and Devices

Topic		Replies	Views
UART Connection with ESP32 and Arduino Uno R3 General Guidance	33	1446	February 17, 2025
Connections for Arduino UNO R3 and ESP32 General Guidance	11	194	April 24, 2026
Transfer data from ESP32 to Arduino Uno using UART Networking, Protocols, and Devices	53	17044	June 2, 2023
I need help with transferring a code from arduino uno to esp32 Programming	24	725	May 19, 2024
The safe and proper power supply design for a system consisting of an Arduino Uno, an ultrasonic sensor, and an ESP32 using a 12V source General Guidance	14	127	March 24, 2026

Communication between Ardunio Uno and ESP32 other than I2C

Related topics