10DecDecember 10, 2025

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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15NovNovember 15, 2025

Interfacing IR Sensor with Raspberry Pi Pico Using MicroPython – Complete Guide

Here is a complete, ready-to-publish WordPress blog article on using Raspberry Pi Pico with an IR Sensor using MicroPython. It includes headings, formatting, code blocks, images suggestions, and SEO-friendly content.Interfacing IR Sensor with Raspberry Pi Pico Using MicroPython Complete GuideInfrared (IR) sensors are among the simplest and most widely used electronic components for object detection, motion sensing, and line-following applications. When combined with the power of the Raspberry Pi Pico, the possibilities become endless—from smart automation systems to DIY...

Raspberry PICO0 CommentsLike: 0

19SepSeptember 19, 2025

Getting Started with the ESP32-C3 Super Mini

Getting Started with the ESP32-C3 Super MiniThe ESP32-C3 Super Mini is one of the most compact yet powerful development boards in the ESP32 family. Designed with affordability, low-power consumption, and Wi-Fi + Bluetooth Low Energy (BLE) support, this tiny board is an excellent choice for IoT projects, DIY electronics, and embedded systems.In this guide, we’ll walk you through what the ESP32-C3 Super Mini is, its features, how to set it up, and a simple “Hello World” project to get you...

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17JulJuly 17, 2025

ESP32: Guide for DS3231 Real Time Clock Module

⏰ What is DS1307 RTC?The DS1307 is a real-time clock IC by Maxim Integrated that keeps track of:SecondsMinutesHours (12 or 24-hour mode)Day, Date, Month, YearAutomatically adjusts for leap years✅ It communicates with microcontrollers using SPI (Serial Peripheral Interface) — unlike the more common DS1307, which uses I2C.🔍 Key FeaturesFeatureDetailsInterfaceSPIVoltage2.0V – 5.5VTimekeepingSeconds, Minutes, Hours, Day, DateBattery backupYes (CR1220 or CR2032 coin cell)OscillatorRequires external 32.768 kHz crystalAlarm + Square WaveBuilt-in (configurable)🧰 Components RequiredComponentDescriptionESP32 boardMicrocontrollerDS1306 RTC moduleWith CR2032 battery and SPI pinsJumper wiresMale-to-female preferredBreadboardFor clean prototypingArduino IDETo program ESP32🔌 DS1307 to ESP32 Wiring...

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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...

ESP32, IoT0 CommentsLike: 0