The Raspberry Pi will be configured as a master, and the Arduino as a slave. The goal of this tutorial is to send a byte from the Raspberry Pi to the Arduino, process this byte, and receive the new value on the Raspberry Pi. Check out Raspberry Pi For Beginners and learn step by step. The software side will handle that depending on which device is set as a slave or master. This is useful to choose which slave you are talking to.
How To Use Raspberry Pi GPIO Serial Port To Program Arduino
serial - Safest way to connect Raspberry Pi to Arduino Uno R3 - Raspberry Pi Stack Exchange
Raspberry Pi Stack Exchange is a question and answer site for users and developers of hardware and software for Raspberry Pi. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. Pi Zero W: Used as a water level detector with the 3. Arduino Uno: Used as an Auto Feeder Has a 5v mini water pump, a moisture sensor, 5v relay, every hour the arduino checks the sensor and if the moisture level is low, turns on the pump for 1. Wanted Outcome: When the feeder checks the moisture and if it has changed send a signal to the Pi which in turn sends a signal to NofitymyDevice, is it possible to connect the pi and arduino with a few connectors to get this done, if so could someone point me in the right direction, thanks.
Raspberry Pi Serial Communication (UART) w/ Arduino & PC
Arduino Stack Exchange is a question and answer site for developers of open-source hardware and software that is compatible with Arduino. It only takes a minute to sign up. Connect and share knowledge within a single location that is structured and easy to search. However, this is going to be in an area where space is limited, so I'm looking for ways to connect the Arduino to the Pi that does not involve a USB cable. You will of course need logic level translation for a 5V Arduino.
A basic example at first, leading to a more complete application using a Raspberry Pi, an Arduino, and other electronic devices. When working with electronic devices, communication is key. Serial communication is simply a way to transfer data.