ESP32

RejsaCAN ESP32 Board RejsaCAN ESP32 Board Supports Auto Shutdown Feature and Fits into 3D Printed OBD-II Dongle

RejsaCAN-ESP32 is a small board based on ESP32-WROOM-32 Wi-Fi and Bluetooth module with a CAN interface that fits into a 3D printed OBD-II dongle for easy installation into most cars and includes an auto-shutdown option to prevent battery drain by monitoring the battery voltage in the car.

RejsaCAN-ESP32 PCB has been designed in EasyEDA …

Newt Open Source IoT Display Powered by ESP32-S2 Module Low-power, Open Source IoT Display Powered by ESP32-S2 Module features MiP Screen Technology

Newt introduced by Phambili is a battery-powered, always-on, wall-mountable display powered by an ESP32-S2 microcontroller that you can program with Arduino, CircuitPython, MicroPython, or ESP-IDF. This low-power, open source, 2.7-inch IoT display can go online to retrieve weather, calendars, sports scores, to-do lists, quotes, and almost anything on the Internet and…

Student Attendance System using ESP32-CAM Development Board Battery Powered Attendance system using Face Recognition on ESP32-CAM Board

The ESP32-CAM is a tiny board that comes with a camera, microSD card, and of course the ESP32 microcontroller for less than ten dollars. It also has Wi-Fi and Bluetooth capabilities making it an ideal choice for IoT projects. But working with the ESP32-CAM board can be an intimidating task because it requires an external programing board and it isn't as…

ESP32 Active Mode and Deep Sleep Mode Power Consumption Comparison ESP32 Active Mode and Deep Sleep Mode Power Consumption Comparison

ESP32 is one of the most popular Wi-Fi based microcontroller modules and it is a popular choice in many Portable IoT Applications. It is a powerful controller that supports Dual Core Programming and also has in-built Bluetooth Low Energy (BLE) support making it a good choice for portable applications like in iBeacon devices, GPS Trackers, etc. However, in Battery-powered…

Interesting DIY IoT Projects Top 30 DIY IoT Projects - From Basics to Advanced

“Internet of Things” is one of the most used technology buzzwords of the current times. After all, who’d have guessed that one day we'd have access to technology that will allow us to connect commonplace objects – such as lights, kitchen appliances, door lock systems, baby monitors, and electrical appliances – to a centralized and integrated network and operate them from…

Secure ESP32 Firmware and Flash Memory on ESP-IDF Framework How to Secure ESP32 Firmware and Flash Memory on ESP-IDF Framework

In the era of Internet of Things(IoT), wireless communication is getting increasingly popular in everyday life. In the world of IoT devices, ESP32 is a popular low-cost System on Chip (SoC) microcontroller with built-in hybrid WiFi and Bluetooth chips by Espressif Systems. Because of its robust design and ultra-low power consumption, it has become so popular in IoT…

ESP32 I2S Communication to Transmit and Receive Audio Data Using MAX98357A I2S Communication on ESP32 to Transmit and Receive Audio Data Using MAX98357A

I2S is an Inter-IC Sound protocol that is used mainly to transmit or receive the audio data in a synchronous serial port between two devices. There are many applications where audio communication is required in digital devices such as adding a microphone or adding a speaker output to play some audio.

There are multiple Audio protocols available in…

ESP32 Based Internet Radio using MAX98357A I2S Amplifier Board ESP32 Based Internet Radio using MAX98357A I2S Amplifier Board

Analog radios are becoming extinct in this digital world since everything, from movies to songs, is being directly streamed from the Internet today. Let’s see how an Internet radio can be made by leveraging some simple digital electronics, coding, and an active Internet connection. Now, those who are following us regularly might already know that we have built a Raspberry Pi…

HEGduino V2 Flexible FNIRS and Blood-Flow Biofeedback Kit HEGduino V2 Flexible FNIRS and Blood-Flow Biofeedback Kit for Brain Training and Cerebral Blood-Flow Monitoring

HEGduino V2 from AlasKit is a flexible FNIRD and blood-flow biofeedback kit that’s a smart low-cost, intuitive home brain training and research-grade cerebral blood-flow monitoring solution. This compact device is incorporated with Heart Rate Variability (HRV) training and can also monitor breathing and skin temperature. It provides much more consistent signal quality…

ESP32-M1 Reach Out Development Board High-Power ESP32-M1 Reach Out Development Board for Long-Range Communication

Integrated with an ESP32 RF SoC, ESP32-M1 Reach Out is a compact 1W (30dBm) Wi-Fi radio ESP32-M1 development board that can achieve long-range communication of more than 1.2.km via Wi-Fi 802.11b. Powered by Qorvo technology, this board is designed to develop robust communication systems using Wi-Fi and Bluetooth protocols.

The small form factor…

ESP Wi-Fi MESH Network How to Configure an ESP Mesh Network using Arduino IDE – Communicate among and between ESP32, ESP8266, and NodeMCU

Internet of Things (IoT) has seen exponential growth over the past couple of years. A new study from International Data Corporation (IDC) estimates that there will be almost 42 billion connected devices within the year 2025, generating over 80 zettabytes (ZB) of data. As the number of IoT devices grows; the amount of data grows, along with that, grows the need for superior…

IoT-based Solar Power Monitoring System using ESP32 and ThingSpeak IoT Based Solar Panel Power Monitoring using ESP32 and ThingSpeak

In the area of renewable energy, solar energy is at the forefront, because producing energy by using the power of the sun is the easiest and commercially viable way of renewable energy. Speaking of solar panels, the output power of a solar panel output needs to be monitored in order to get optimum power output from the panels. This is why a real-time monitoring system…