Using ESP_NOW for Inter-device Communication on ESP32 S3 with Arduino
0x00 What is ESP_NOW?
Characteristics of ESP_NOW Communication Protocol
Exploring Arduino Technology and Applications: A Comprehensive Guide
Exploring Arduino Technology and Applications (Video Course Version)
Author: Li Mingliang
ISBN: 978-7-302-56332-7
Price: 59.00 Yuan
New Form Textbook
Planning Textbook by the Teaching Guidance Committee for Electronic Information Majors of Higher Education Institutions of the Ministry of Education
Basic Knowledge → Module Experiments → Circuit Design → Project Practice
Exciting videos accompanying this book, take a sneak peek!
Build Your Own Smart Robot with ESP32-CAM
Introduction
The ESP32-CAM is a microcontroller module that integrates Wi-Fi and Bluetooth functionality, along with a camera interface, making it an excellent choice for building smart robots. In this project, I will show you how to construct a simple AI robot using the ESP32-CAM module, which can stream video to an Android device and perform AI task processing on the Android device.
Hardware Requirements
Based on the images returned by the camera, AI interpretation is
Create an Electronic Piano with Arduino UNO
An online learning platform that all national maker education teachers are paying attention to
The electronic piano made with Arduino UNO can play the notes "do re mi fa so la ti" in order. To enhance the performance by an octave, a pitch-bend button is placed on the far right of the piano. Additionally, for aesthetic purposes, we added some cotton decorations, creating a feeling
Why is the ESP32 So Popular?
❝The ESP32 is something many people may have heard of or used. If you have previously used an Arduino development board, you might have come across it as well. The ESP32 refers to a series of chips and modules produced by Shanghai Espressif Systems, rather than a specific chip, which is something to note. Today, I will introduce Espressif's chips.
Espressif's Chip Family
Espressif has five system products, namely: ESP32S series, ESP32C series, ESP32H series,ESP32, and ESP8266 (Yes, except for the ESP8266,
Transform Your USB Socket into a WiFi Socket: A DIY Guide
I'm sharing my experience of transforming a USB socket into a WiFi socket. I spent three days reorganizing and testing the source code, and I made some improvements to the app. I believe that with my source code and app, you too can have your own WiFi socket.
One socket (I used a USB socket that comes with two USB charging ports, one two-hole socket, and one five-hole socket. I chose it because it has a large internal space. Choosing
Step-by-Step Guide to Making an Arduino UNO Board with Wire (Includes Finished Product Video)
Everyone knows about Arduino. Arduino is a convenient, flexible, and easy-to-use open-source electronic prototyping platform, including hardware (various models of Arduino boards) and software (Arduino IDE).
The hardware of the Arduino board is relatively simple. For most hardware engineers, drawing an Arduino board is not difficult. However, some engineers have made an Arduino
Comparison of Open Source Hardware
Many large companies choose to keep their hardware closed-source, creating technological barriers and patent copyrights that hinder the development of small-scale innovators. Open source hardware allows entrepreneurs to more easily turn their ideas into reality.
From left to right: Arduino Uno, BeagleBone, Raspberry Pi
Arduino Uno is very common in the Maker community. Arduino comes in many different sizes and features, but here we choose Arduino Uno as a representative.
Understanding Arduino UNO
Click the card above to follow and learn more
It is an Arduino UNO board without any circuit board.
It uses a technology called freeform to interconnect components using wires or copper instead of a circuit board. It looks minimalistic and beautiful!
Why did I make this? I often find it hard to explain what freeform electronics are and what they look like. And Freeduino is a great example of freeform electronic art,
Measuring Heart Rate and Blood Oxygen Saturation with Arduino UNO: High Accuracy!
This project uses an Arduino UNO board connected to the MAX30102 module (pulse oximeter and heart rate monitoring module), along with an OLED display and a buzzer for BPM measurement.
BPM stands for "beats per minute", which is about 65-75 for a normal person at rest, and may drop below this during sports activities. SpO2 indicates the oxygen saturation level, which is generally above 95% for a normal