CR2025 vs CR2032: Choosing the Right Coin Cell Battery for Electronics Projects

CR2025 vs CR2032: Choosing the Right Coin Cell Battery for Electronics Projects

Coin cell batteries are widely used in compact electronic devices, IoT products, sensors, and DIY projects. Among the most common lithium coin cells, CR2025 and CR2032 are often considered interchangeable, but they have important differences in thickness, capacity, and application scenarios.

September 24, 2026 by battery PKCELL

 ESP32 Touchscreen Home Automation Control Panel - ESPHome

ESP32 Touchscreen Home Automation Control Panel - ESPHome

In this tutorial, we will learn how to make a wall-mounted Smart Home Dashboard by using two ESP32 boards

September 23, 2026 by Raushan kumar

LiMnO₂ vs LiSOCl₂: How to Choose the Right Primary Lithium Battery for Industrial Devices

Choosing the right primary lithium battery depends on more than capacity. This guide compares LiMnO₂ and LiSOCl₂ batteries based on voltage, energy density, pulse performance, temperature range, and typical industrial applications.

September 22, 2026 by battery PKCELL

DIY ESP32 Audio Spectrum Analyzer -  CrowPanel 3.5 HMI Display

DIY ESP32 Audio Spectrum Analyzer -  CrowPanel 3.5 HMI Display

The CrowPanel 3.5" ESP32 proves to be an incredibly versatile platform for high-speed audio visualization. By combining custom FFT logic with the optimized TFT_eSPI library, I’ve created a audio analyzer with impressive visual effect.

September 19, 2026 by Mirko Pavleski

How to Interface a TTP223B Touch Sensor with Arduino

How to Interface a TTP223B Touch Sensor with Arduino

In this project, we will connect a TTP223B touch sensor to an Arduino UNO. When the sensor detects a touch, the Arduino will turn on an external LED and display a message on the Serial Monitor.

September 15, 2026 by Rachana Jain

PiMonitor v2.1 Stable — Raspberry Pi System Monitor

PiMonitor v2.1 Stable — Raspberry Pi System Monitor

PiMonitor v2.1 is a Raspberry Pi system monitoring dashboard built with Node-RED and FlowFuse Dashboard 2.0. It displays CPU, RAM, temperature, disk usage, uptime, load averages and system health, with 1-hour history charts, Docker/Portainer support and optional secure remote access through Tailscale.

September 14, 2026 by Manuel Quaglio Marsura

PiMonitor v2.1 Stable — Raspberry Pi System Monitor

E-Paper Digital ID Badge

A reprogrammable smart conference / event badge on a Waveshare ESP32-S3 touch e-paper board: it shows your details, a scannable QR code.

September 13, 2026 by CETECH CETECH

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