Post by dhafer knani

🎓 Final Year Project — Carbon Ledger: IoT + Blockchain Carbon Traceability System As part of my 3rd-year engineering project at Polytechnique Sousse, I designed and built Carbon Ledger — a full-stack system that measures real-time industrial CO₂ emissions, guarantees their integrity with cryptography, and makes them auditable on a blockchain. 🔍 The Problem Current carbon accounting relies on electricity bill estimates imprecise and easily falsifiable. Carbon Ledger solves this with real-time sensor data backed by cryptographic proof. ⚙️ What I Built IoT node: ESP32 + PZEM-004T sensor (±1% accuracy), CO₂ calculation using Tunisia's IEA emission factor, ECDSA signature per measurement, MQTT/TLS 1.2 transmission Blockchain: private Hyperledger Fabric network with Go chaincode (RecordMeasure / VerifyMeasure) — 847 TPS tested Backend: Python/FastAPI, MQTT worker, InfluxDB + PostgreSQL, JWT auth, ISO 14064 PDF reports Frontend: React/Recharts real-time dashboard with blockchain hash verifier 📊 Results ✅ Accuracy: < ±1% | ✅ Latency: avg 2.4s | ✅ Uptime: 99.7% over 48h | ✅ Security: 100% forged message rejection 🛠️ Skills: ➡️ Embedded C++ (ESP-IDF/FreeRTOS), ➡️Hyperledger Fabric, ➡️Go chaincode, ➡️Python/FastAPI ➡️InfluxDB, ➡️PostgreSQL ➡️React ➡️Docker, ➡️cryptography (ECDSA/SHA-256/TLS), REST API design, ESG standards (ISO 14064) 💻 Stack: C++ · Python · Go · JavaScript/React · SQL · Flux #IoT #Blockchain #HyperledgerFabric #ESP32 #EmbeddedSystems #FastAPI #React #ESG #Sustainability #Cryptography #GreenTech #Docker #FinalYearProject #Python #MQTT #CarbonFootprint For more informations view my Github Account : https://lnkd.in/dY_xSPeP

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