importantSYS.SOURCE: wilsonharper.net• 2026-08-28T13:48:12Z

NFC Energy-Harvesting PCB Business Card with MCU and Animated LEDs

#nfc #pcb design #mcu #energy harvesting

The article details an NFC energy-harvesting PCB business card that uses an MCU to animate 21 LEDs via RF power from a smartphone, employing Charlieplexing and custom antenna design. It discusses technical challenges in PCB layout, component selection, and energy management for a battery-free, low-cost solution.

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> CHERENKOV RADIATION: UNDERSTANDING SUPERLUMINAL PARTICLE EMISSION > NEIJUAN: A SOCIOLOGICAL CONCEPT OF INTENSIFIED COMPETITION WITHOUT COLLECTIVE BENEFIT > US DIESEL PRICES SURGE TO RECORD $6 PER GALLON AMID IRAN SUPPLY DISRUPTION > EXPLOITATION OF JFROG ARTIFACTORY VULNERABILITIES ENABLES ADMIN PRIVILEGE ESCALATION AND BACKDOOR DEPLOYMENT > CHINA-LINKED UNC3569 EXPLOITS SOGOU INPUT METHOD VULNERABILITY TO DEPLOY GRAYRABBIT BACKDOOR > PAPERCUT ADDRESSES ACTIVELY EXPLOITED VULNERABILITIES WITH NEW SECURITY RELEASES > CRITICAL ANALYSIS OF GPT-6 ASTRA'S CODING CAPABILITIES > CISCO FMC VULNERABILITIES EXPLOITED FOR CREDENTIAL THEFT AND QILIN RANSOMWARE DEPLOYMENT > OPENAI'S GPT-LIVE-1 API ENHANCES REAL-TIME LANGUAGE PROCESSING CAPABILITIES > GOOGLE UNVEILS GEMINI APP FOR WINDOWS PLATFORM> CHERENKOV RADIATION: UNDERSTANDING SUPERLUMINAL PARTICLE EMISSION > NEIJUAN: A SOCIOLOGICAL CONCEPT OF INTENSIFIED COMPETITION WITHOUT COLLECTIVE BENEFIT > US DIESEL PRICES SURGE TO RECORD $6 PER GALLON AMID IRAN SUPPLY DISRUPTION > EXPLOITATION OF JFROG ARTIFACTORY VULNERABILITIES ENABLES ADMIN PRIVILEGE ESCALATION AND BACKDOOR DEPLOYMENT > CHINA-LINKED UNC3569 EXPLOITS SOGOU INPUT METHOD VULNERABILITY TO DEPLOY GRAYRABBIT BACKDOOR > PAPERCUT ADDRESSES ACTIVELY EXPLOITED VULNERABILITIES WITH NEW SECURITY RELEASES > CRITICAL ANALYSIS OF GPT-6 ASTRA'S CODING CAPABILITIES > CISCO FMC VULNERABILITIES EXPLOITED FOR CREDENTIAL THEFT AND QILIN RANSOMWARE DEPLOYMENT > OPENAI'S GPT-LIVE-1 API ENHANCES REAL-TIME LANGUAGE PROCESSING CAPABILITIES > GOOGLE UNVEILS GEMINI APP FOR WINDOWS PLATFORM