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Technical articles from the Inurum engineering team — IoT hardware design, embedded firmware, telematics protocols, and fleet systems built and shipped.
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Vehicle Diagnostics & Telematics with ESP32-S3
Multi-protocol integration across J1939, OBD-II, and J1708 for comprehensive vehicle diagnostics. The ESP32-S3 acts as central controller — reading CAN bus data, RS485, and GPS from a Quectel LC86G module for real-time vehicle tracking.
The Versatile Quectel BG95 for IoT Applications
Real-world deployments of the BG95 board — from vending machine stock monitoring with online payments, to vehicle CAN bus trackers for fleet diagnostics in the USA market.
ELD NT11 — Bluetooth & Wi-Fi Based Logging Device
Electronic Logging Device built to FMCSA compliance. Eliminates paper logs, prevents HOS violations, and surfaces real-time fleet performance data through Bluetooth and Wi-Fi connectivity.
IoT Product Development Cost in India — 2026 Guide
Complete breakdown of IoT development costs — PCB design, firmware, mobile app, and cloud backend pricing explained with real numbers from an engineering team.
RFID Attendance Machine Price in India (2026)
What an RFID or biometric attendance machine costs in India, what drives the price, and the hidden costs to ask about before you buy.
Bluetooth vs Non-Bluetooth ELD Devices: How to Choose
Bluetooth dongle with a phone app, or a hardwired ELD with its own modem and display? How each works, the trade-offs, and what the FMCSA rules say.
PT-30 ELD Device: Technical Overview and Specs
What the PT-30 ELD interface does, how it connects to the truck and the driver app, its published specs, and what it does not do for FMCSA compliance.
ELD Demo with the PT-30: Auto Drive Mode, Logs and Admin Panel
Video: the PT-30 connected to our ELD software on an engine simulator, with automatic Driving status, log creation, the HOS graph, remaining hours and the admin panel.
Free HOS Calculator: 11, 14 and 70-Hour Clocks
Enter a duty log and see drive time, 14-hour window, 30-minute break and cycle hours left under FMCSA rules, with sleeper berth split support.
4G vs 2G GPS Tracker: Which One Should You Buy in India?
How 4G and 2G trackers differ, what the 2G shutdowns mean, where India stands today, and what to check before you buy.
RFID Attendance System with ESP32 — Architecture & Edge Firmware
Production RFID attendance system built using ESP32, MQTT, TimescaleDB and Flutter — replacing biometric scanners that failed in dust and humidity for 350+ workers.
RFID Attendance System — Flutter Kiosk App & Live Demo
Production RFID attendance kiosk built using Flutter on Android — offline-first architecture, voice feedback TTS, auto check-in/out, and real-time cloud sync with YouTube video demo.
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