ESP32 with MAX30100 HEART SENSOR

Heart Rate & SpO₂ Sensor (MAX30100/MAX30102)🔬 Pulse Sensor | SpO₂ Monitor | Wearable Health TechThe MAX30100/MAX30102 is a digital pulse oximeter and heart-rate sensor developed by Maxim Integrated. It’s commonly used in fitness bands, medical devices, and IoT-based health monitoring systems. It combines two key measurements in one module: heart rate (BPM) and blood oxygen saturation (SpO₂ %).🔧 Key FeaturesFeatureDescriptionHeart Rate Range30 to 240 BPMSpO₂ Range70 to 100%LED WavelengthsRed (660nm), IR (940nm)InterfaceI²CSupply Voltage1.8V to 3.3V (VIN can tolerate 5V in some modules)Built-in AlgorithmPulse detection, SpO₂ calculationLow PowerIdeal for wearable...

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17FebFebruary 17, 2025

How to Double-Height Text with ESP32 and MD_Parola

Scrolling text displays are a fantastic way to add dynamic information to your projects. Taking it a step further, double-height text can create a more impactful and readable display. This blog post will guide you through the process of implementing double-height text scrolling on an ESP32 using the MD_Parola library and MAX7219-based matrix displays.What You'll Need:ESP32 Development BoardDouble-Height Matrix Display (made up of multiple 8x8 MAX7219 modules)Connecting WiresPower SupplyResistors (if required by your display)Breadboard (optional)Soldering Iron and Solder (optional, for...

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11NovNovember 11, 2024

ESP32, ULN2003, and 28BYJ-48: A DIY Stepper Motor Control Project

Introduction In the realm of DIY electronics, stepper motors are versatile components that can be used to create a wide range of projects, from 3D printers to robotic arms. The ESP32, a powerful microcontroller, coupled with a ULN2003 driver and a 28BYJ-48 stepper motor, provides a robust and affordable solution for precise motor control. In this blog post, we'll delve into the specifics of this combination and guide you through a basic setup.Understanding the ComponentsESP32:A versatile microcontroller with Wi-Fi and...

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07NovNovember 7, 2024

ESP32 Bluetooth Control Relay:

IntroductionIn today's age of automation, controlling devices remotely has become increasingly popular. One of the most common applications is controlling electrical appliances using a smartphone. This can be achieved using a variety of methods, but one of the most cost-effective and versatile solutions is the ESP32 microcontroller paired with a Bluetooth module.In this blog post, we'll delve into the process of building a Bluetooth-controlled relay using an ESP32 board. This project allows you to remotely switch on or off any...

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07NovNovember 7, 2024

ESP32 and GROW GM805-L: A Dynamic Duo for Barcode Scanning and IoT

The Internet of Things (IoT) has revolutionized the way we interact with the world around us. With the ability to connect devices to the internet, we can automate tasks, monitor conditions, and gather valuable data. At the heart of many IoT projects lies the ESP32, a versatile microcontroller, and the GROW GM805-L, a high-performance barcode and QR code reader module.What is ESP32?The ESP32 is a powerful and affordable microcontroller board developed by Espressif Systems. It boasts a dual-core processor, Wi-Fi,...

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