2023 - 2026IoT & Hardware AutomationSUB-ID: iot-hardware-systems

IoT Development & Embedded Automation Suite

A consolidated portfolio of over 25 custom Internet of Things (IoT) hardware and software solutions spanning smart agriculture, industrial telemetry, RFID access control, biomedical health monitoring, environmental sensors, and remote automation controllers.

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PRODUCTION LIVE

25+ Deployed Hardware Systems2023 - 2026

IoT Development & Embedded Automation Suite

25+

Hardware systems deployed

PROJECT BRIEF & OVERVIEW

HTech Labs IT Solutions specializes in custom IoT development, providing scalable, secure, and innovative hardware-to-cloud solutions that drive business efficiency and digital transformation. Across more than 25 deployed systems, our engineering team has integrated microcontrollers (ESP32, ESP8266, Arduino UNO/Mega, STM32) with cloud platforms and messaging networks (Blynk IoT, MQTT, Telegram Bot API, MySQL databases, custom REST backends) to deliver robust telemetry, automated alerts, and remote physical actuator control.

THE OPERATIONAL CHALLENGE

Businesses and facility operators struggle with fragmented hardware prototypes that lack reliable wireless connectivity, experience high sensor drift, fail during intermittent Wi-Fi drops, and require expensive proprietary software subscriptions.

HTECH LABS ARCHITECTURE

Engineered production-grade firmware in C++ with hardware debounce, local flash fail-over caching, and standardized cloud protocols (MQTT, Blynk, Telegram Bot API, and direct MySQL). Each system is paired with industrial-grade enclosures, optical sensor isolation, and instant mobile notification pipelines.

DELIVERED CAPABILITIES

Key Features & Technical Implementations

Comprehensive suite of 25+ deployed hardware builds across corporate, agricultural, and educational sectors

Microcontroller architecture: ESP32 dual-core, ESP8266 NodeMCU, Arduino UNO/Mega, STM32, and LoRa long-range transceivers

Multi-protocol cloud telemetry: MQTT pub/sub, Blynk Cloud IoT, Telegram Bot API webhooks, HTTP REST, MySQL direct logging

Complete sensor integration: Ultrasonic distance, DHT11/DHT22 temperature & humidity, soil moisture, MQ-2 smoke/gas, flame detection, LDR light, GPS NEO-6M, GSM SIM800L, MPU6050 accelerometer, pulse rate & SpO2

Actuator & relay drivers: High-torque servo motors, 12V solenoid door deadbolts, submersible water pumps, buzzers, multi-relay banks, LCD/OLED displays

Complete firmware engineering in C/C++ with watchdog timers, hardware debounce, and fail-safe reconnect logic

MEASURABLE IMPACT

Outcomes Delivered

Verified25+ individual hardware systems designed, programmed, and deployed into active service

VerifiedSub-second alert dispatch latency across cellular GSM and Wi-Fi networks

Verified100% data integrity with local flash caching during network reconnects

25+

Hardware systems deployed

TECHNICAL SPECIFICATIONS

TIMELINE / STATUS2023 - 2026

CATEGORYIoT & Hardware Automation

HARDWARE / PLATFORMSESP32, ESP8266, Arduino, Blynk, MQTT, Telegram, LoRa, Sensors & Relays

SYSTEM CLASSIFICATION25+ Deployed Hardware Systems

TECHNOLOGY STACK

ESP32ESP8266ArduinoBlynk IoTMQTTTelegram Bot APIC++Sensors & RelaysMySQL

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HARDWARE DIRECTORY · 25+ DELIVERED BUILDS

All 25+ Hardware Builds & Telemetry Systems

Explore every embedded system engineered and deployed by HTech Labs across corporate, agricultural, security, and industrial automation sectors.

25 Systems Displayed

# ID	HARDWARE ITEM & DOMAIN	REAL-WORLD BUSINESS APPLICATION (USE CASE)	HOW IT WORKS (SIMPLE TECH EXPLANATION)	HARDWARE & PROTOCOLS	ACTION
#01 PUSH-BUTTO	Push Button Notification Blynk Safety & Panic AlertBlynk, Push Button	Wireless emergency, assistance, or concierge calling for hotels, nursing homes & hospitals without running long cable conduits.	Physical button triggers an ESP8266/Arduino module that fires an encrypted cloud event to Blynk, ringing supervisor phones in <1 second.	ESP8266 / ArduinoBlynk IoT CloudC++Hardware Push Button	Inquire
Engineering Overview & Architecture Built for industrial emergency signaling and on-demand concierge assistance. A hardened physical momentary button interfaces with a network-enabled microcontroller to publish an alert event to Blynk Cloud, triggering audible alarms and push alerts on supervisor smartphones. Technical Capabilities & Firmware Logic Hardware debounce circuitry preventing false triggers Sub-second Blynk cloud event dispatch Low power standby consumption Audible buzzer acknowledgment DEPLOYMENT METRIC < 1s (Alert latency) Scope Custom Hardware Build
#02 PUSH-BUTTO	Push Button Notification Telegram Team Paging & AlertTelegram, Push Button	Instant staff distress and factory machine breakdown alert sent directly into existing team Telegram group chats.	Pressing the tactile button fires an HTTPS webhook to Telegram Bot API, broadcasting device ID and timestamp to your staff chat.	ESP32Telegram Bot APIC++Wi-Fi Networking	Inquire
Engineering Overview & Architecture Eliminating the need for dedicated proprietary apps, this IoT unit connects directly to Wi-Fi to trigger rich Telegram chat messages with device ID and timestamps whenever the physical button is pressed. Technical Capabilities & Firmware Logic Telegram Bot API webhook integration Secure HTTPS message transport Configurable target group chats and channels LED connection status indicator DEPLOYMENT METRIC Instant (Bot dispatch) Scope Custom Hardware Build
#03 RFID-NOTIF	RFID Send Notification Blynk Access & CustodyRFID, Blynk	Keyless door monitoring and equipment custody logging with instant smartphone app push alerts on badge scan.	A contactless 13.56MHz RC522 RFID reader scans employee keycards and verifies UIDs, pushing real-time check-in logs to the Blynk app.	RC522 RFIDESP32 / NodeMCUBlynk IoTC++	Inquire
Engineering Overview & Architecture Engineered for smart door monitoring and equipment custody tracking. Whenever an authorized or unauthorized card taps the reader, cardholder details and access status are instantly reflected on the Blynk dashboard. Technical Capabilities & Firmware Logic RC522 RFID card reader integration Local UID whitelist verification Instant Blynk app alert with cardholder name Audio-visual beep & LED validation DEPLOYMENT METRIC 13.56 MHz (RFID frequency) Scope Custom Hardware Build
#04 RFID-NOTIF	RFID Send Notification Telegram Security FeedRFID, Telegram	Zero-maintenance server room or office door access log streaming live badge entries directly into a private Telegram channel.	An ESP32 verifies cardholder badges and sends instant chat notifications with entry timestamps and unauthorized intrusion warnings.	RFID MFRC522ESP32Telegram APIC++	Inquire
Engineering Overview & Architecture Provides facility managers with an effortless, zero-maintenance log of who enters specific rooms or server racks, streaming check-in timestamps and user IDs directly into a Telegram security feed. Technical Capabilities & Firmware Logic Instant Telegram message dispatch on card swipe Unregistered card intrusion warnings Offline buffering during intermittent Wi-Fi Compact wall-mount enclosure design DEPLOYMENT METRIC 100% (Audit log capture) Scope Custom Hardware Build
#05 BLYNK-SWIT	Blynk Switch Industrial PowerBlynk	Remote smartphone control for high-power industrial machinery, water pumps, greenhouse lights, and HVAC units.	Optocoupler-isolated relays receive on/off signals from the Blynk mobile app over Wi-Fi, safely switching high-voltage electrical loads up to 240V.	ESP8266Blynk AppOptocoupler RelaysC++	Inquire
Engineering Overview & Architecture Enables users to remotely switch high-voltage industrial appliances, lighting fixtures, and pumps from anywhere in the world with real-time state feedback and automated scheduling. Technical Capabilities & Firmware Logic Opto-isolated relay channels for high voltage safety Blynk virtual pin state synchronization Physical manual override toggle Fail-safe state retention on power cycle DEPLOYMENT METRIC 240V (Relay switching) Scope Custom Hardware Build
#06 TELEGRAM-S	Telegram Switch Chatbot ActuationTelegram	Chat-based equipment control allowing operators to turn factory machines, sprinklers, or gates on/off via text messages.	An interactive Telegram bot listens for authenticated commands like /on_relay1 and triggers relay coils with instant confirmation replies.	ESP32Telegram Bot APIRelay ModuleC++	Inquire
Engineering Overview & Architecture Allows equipment operators to send commands like `/on_relay1` or `/status` in a Telegram chat to actuate industrial relays, check live system metrics, and receive instant photo confirmations. Technical Capabilities & Firmware Logic Interactive Telegram bot command parser Security authentication restricting commands to authorized user IDs Real-time relay status queries Scheduled timer automation DEPLOYMENT METRIC Chat-based (Command control) Scope Custom Hardware Build
#07 SWITCH-MQT	IoT Switch using MQTT Low-Latency Pub/SubMQTT	Mission-critical industrial automation requiring ultra-low latency (<50ms) and minimal bandwidth across unreliable networks.	Subscribes to standard MQTT pub/sub topics; fully compatible with enterprise SCADA, Home Assistant, and Node-RED automation pipelines.	ESP32Mosquitto / EMQX MQTTPubSubClientJSON	Inquire
Engineering Overview & Architecture Engineered for mission-critical automation environments where minimal bandwidth and ultra-low latency are required. Subscribes to MQTT command topics and publishes state acknowledgments in milliseconds. Technical Capabilities & Firmware Logic Standardized MQTT pub/sub architecture QoS 1 reliable message delivery guarantee Compatible with Home Assistant and Node-RED TLS-encrypted payload support DEPLOYMENT METRIC < 50ms (Pub/Sub latency) Scope Custom Hardware Build
#08 SWITCH-PYT	IoT Switch using Python Edge AutomationPython	Edge computing gateways and automated scheduling for complex multi-sensor conditional switching on Raspberry Pi.	A lightweight Python REST server controls hardware GPIO pins with automated cron rules and local database state logging.	Python 3Raspberry PiFlaskSQLiteGPIO	Inquire
Engineering Overview & Architecture Designed for edge computing servers and Raspberry Pi gateways, this system uses Python to run automated logic, evaluate sensor readings, and toggle relay circuits based on complex algorithmic rules. Technical Capabilities & Firmware Logic Python RPi.GPIO / GPIO Zero implementation Flask / FastAPI lightweight REST server Cron-based automated cycle scheduling Detailed system logging and telemetry DEPLOYMENT METRIC Scriptable (Custom logic) Scope Custom Hardware Build
#09 ESP32-CAM-	ESP32-Cam Photo Telegram Edge Vision SecurityESP32-CAM, Telegram	Affordable wireless security surveillance for remote cabins, construction sites, and warehouses with zero monthly cloud fees.	A PIR sensor detects human movement, wakes the camera module, captures a JPEG photo, and dispatches it straight to your Telegram chat.	ESP32-CAMOV2640 CameraPIR SensorTelegram Bot APIC++	Inquire
Engineering Overview & Architecture A cost-effective remote security surveillance system combining the ESP32-CAM module and PIR motion detection to capture snapshot evidence and dispatch it directly to a private Telegram chat. Technical Capabilities & Firmware Logic PIR motion trigger wake-up Automatic flash LED activation in low light Instant JPEG transmission via HTTPS Telegram Bot API On-demand `/photo` command capture DEPLOYMENT METRIC OV2640 (Camera sensor) Scope Custom Hardware Build
#10 BLYNK-WEAT	Blynk Weather Monitoring Agro & ClimateBlynk, Weather Sensors	Microclimate tracking for agricultural greenhouses, farm plots, and outdoor events to prevent crop shock and heat damage.	Samples ambient temperature, humidity, and rain intensity sensors continuously, graphing real-time environmental trends on mobile.	ESP32 / ESP8266DHT22 / BME280Rain SensorBlynk Cloud	Inquire
Engineering Overview & Architecture Deployed for agricultural greenhouses and outdoor environments, reading temperature, humidity, atmospheric pressure, and rain presence with live telemetry charts on smartphones. Technical Capabilities & Firmware Logic Continuous sampling of temperature, humidity, and barometric pressure Rain intensity analog sensor integration Historical data graphing on Blynk Cloud Severe weather notification alerts DEPLOYMENT METRIC Multi-Sensor (Atmospheric telemetry) Scope Custom Hardware Build
#11 WEATHER-DO	Weather Dot Matrix Signboard 64X8 Commercial DisplayDot Matrix LED, Weather Sensor	Public lobby and factory floor displays showing live environmental conditions, NTP clock time, and custom ticker messages.	Cascading MAX7219 red LED dot matrix modules display live sensor readings and synchronize exact time via Wi-Fi NTP servers.	Arduino / ESP8266MAX7219 LED MatrixDHT SensorMD_Parola / MD_MAX72xx	Inquire
Engineering Overview & Architecture Designed for commercial lobbies and smart factory floors. Features MAX7219 cascading LED dot matrix modules rendering smooth scrolling typography of real-time sensor metrics and Wi-Fi NTP clock times. Technical Capabilities & Firmware Logic 64x8 red LED matrix driven by MAX7219 drivers Live environmental sensor feed display NTP internet clock time synchronization Web config portal for custom ticker messages DEPLOYMENT METRIC 64x8 LED (Display matrix) Scope Custom Hardware Build
#12 TEMP-CONTR	Temperature Control using Blynk Thermal RegulationBlynk, Temperature Sensor	Automated climate regulation for server enclosures, incubation chambers, and pharmaceutical storage cold rooms.	Closed-loop thermostat monitors temperature with a digital probe and automatically activates cooling fans or heaters to maintain setpoints.	ESP8266DS18B20 Temp ProbeBlynk IoTRelay Driver	Inquire
Engineering Overview & Architecture Automates thermal management in server enclosures and incubation chambers. Operators configure target temperatures on their phone, and the microcontroller dynamically activates cooling fans or heating pads. Technical Capabilities & Firmware Logic Hysteresis thermostat logic preventing rapid relay cycling High-precision digital temperature sensing (DS18B20) Slider-adjustable temperature setpoints on Blynk Overtemperature emergency alarm DEPLOYMENT METRIC Closed-Loop (Thermostat control) Scope Custom Hardware Build
#13 LORA-TEMP-	LoRa Temperature Humidity using Telegram Long-Range RF LinkLoRa, Telegram, Temp & Humidity	Long-range wireless monitoring for rural agricultural plantations and vast campuses spanning 5+ km with no Wi-Fi/cellular.	Low-power SX1278 LoRa radio broadcasts sensor packets to a central gateway, which bridges data to Telegram over the internet.	SX1278 LoRa ModuleESP32 GatewayDHT22 SensorTelegram Bot APIC++	Inquire
Engineering Overview & Architecture Engineered for remote agricultural plantations and vast campuses where Wi-Fi is unavailable. Battery-powered remote LoRa transmitters send telemetry to a central internet gateway, which logs data and dispatches Telegram notifications. Technical Capabilities & Firmware Logic Long-range RF communication via SX1278 433MHz / 915MHz LoRa Ultra-low-power deep sleep for multi-month battery life Gateway forwarder connecting LoRa packets to Telegram Bot API CRC checksum error detection DEPLOYMENT METRIC 5+ km (Long-range RF link) Scope Custom Hardware Build
#14 BLYNK-SERV	Blynk Servo Motor Robotic ActuationBlynk, Servo Motor	Automated pet feeding dispensers, physical valve gating, and robotic arm positioning controlled from smartphone sliders.	Translates mobile slider percentage positions into precise 0°–180° PWM servo angles with smooth velocity ramping.	ESP8266 / ArduinoSG90 / MG996R ServoBlynk CloudPWM Control	Inquire
Engineering Overview & Architecture Utilized for automated pet feeders, valve actuators, and robotic arm prototypes. Translates mobile touch slider positions into accurate PWM angles from 0 to 180 degrees with smooth velocity ramping. Technical Capabilities & Firmware Logic Smooth PWM servo positioning logic Blynk slider and preset angle buttons External power isolation preventing brownouts Current draw monitoring DEPLOYMENT METRIC 180° (Precision actuation) Scope Custom Hardware Build
#15 BLYNK-ULTR	Blynk Ultrasonic Sensor Tank & Liquid DepthBlynk, Ultrasonic Sensor	Non-contact liquid tank level monitoring, flood drain alerts, and automated pump replenishment triggers.	Measures sonic echo bounce time to calculate fluid depth with millimeter precision, triggering low-level refill alerts on smartphones.	ESP32HC-SR04 Ultrasonic SensorBlynk IoTC++	Inquire
Engineering Overview & Architecture Ideal for water tank level monitoring and automated bin capacity detection. Measures echo time-of-flight and visualizes real-time fill percentages on the Blynk mobile application with low-level threshold alerts. Technical Capabilities & Firmware Logic HC-SR04 ultrasonic echo timing algorithm Digital filtering removing acoustic noise spikes Visual level gauge and percentage readout on Blynk Auto-fill pump trigger relay integration DEPLOYMENT METRIC 2cm - 400cm (Measuring range) Scope Custom Hardware Build
#16 RFID-ACCES	RFID Access System Door Lock SecurityRFID	Standalone physical door access control for offices and laboratories with local master card enrollment (no PC needed).	Authorized card tap energizes a 12V 280kg electromagnetic lock relay for 5 seconds while sounding an affirmative buzzer chime.	Arduino / ESP32MFRC522 RFIDSolenoid / EM LockEEPROM	Inquire
Engineering Overview & Architecture A robust door security solution for offices and laboratories. Authorized RFID tags immediately energize a 12V electromagnetic lock relay for 5 seconds while sounding an affirmative chime; unauthorized scans trigger an alert tone. Technical Capabilities & Firmware Logic Local EEPROM storage for authorized card whitelist Master programming card for adding/removing users without a computer 12V 280kg electromagnetic lock relay driver Tamper detection switch integration DEPLOYMENT METRIC 13.56 MHz (Mifare standard) Scope Custom Hardware Build
#17 RFID-TOL-S	RFID Tol System Electronic TollingRFID	Automated electronic highway tolling and parking barrier gates with instant balance deduction.	Detects windshield RFID tags, deducts simulated fare from account balance, and automatically lifts the servo barrier boom gate.	ArduinoRFID ReaderServo MotorI2C LCD 16x2IR Sensor	Inquire
Engineering Overview & Architecture Simulates modern contactless highway tolling and parking gantry systems. Reads vehicle RFID windshield tags, checks account balance, automatically lifts the boom gate, and flashes green GO indicators. Technical Capabilities & Firmware Logic Simulated toll fare deduction on card tap Automated servo boom gate lift and lower cycle IR obstacle sensor preventing gate closure on vehicles LCD display showing remaining balance and vehicle class DEPLOYMENT METRIC Automated (Barrier gate control) Scope Custom Hardware Build
#18 RFID-TOPUP	RFID Topup Card Prepaid Stored ValueRFID	Prepaid cashless cards for food courts, school cafeterias, laundromats, and festival carnivals.	Encrypted sector read/write terminal with tactile keypad allowing operators to top-up funds and deduct cashless purchases on Mifare cards.	Arduino / ESP32MFRC5224x4 Matrix KeypadOLED 0.96"C++	Inquire
Engineering Overview & Architecture Designed for campus cafeterias, event carnivals, and laundry facilities. Operators can top up funds onto customer RFID cards via a keypad interface, and vending terminals deduct purchases with cryptographic write authentication. Technical Capabilities & Firmware Logic Mifare Classic 1K encrypted sector read/write Keypad module for entering top-up and purchase amounts Tamper-resistant cryptographic key authentication OLED display showing transaction receipts DEPLOYMENT METRIC Mifare Classic (Encrypted sectors) Scope Custom Hardware Build
#19 RFID-DOORL	RFID Door Lock using Telegram Dual-Mode LockRFID, Telegram	Dual-mode door security: physical card tap on-site for employees, plus remote admin door unlock via Telegram for guests.	Combines an RC522 card reader with remote Telegram /unlock commands to actuate a 12V electric strike lock from anywhere in the world.	ESP32RC522 RFIDTelegram Bot APIEM Lock RelayC++	Inquire
Engineering Overview & Architecture Gives homeowners and office admins total control: visitors or staff can tap their RFID card for instant access, or remote admins can send `/unlock` in Telegram to pop the door lock for guests while receiving immediate audit photo alerts. Technical Capabilities & Firmware Logic Dual authentication: local RFID swipe + remote Telegram command Real-time Telegram alert message with user card details on every unlock Auto-relocking timer (default 5 seconds) Manual interior exit push button input DEPLOYMENT METRIC Dual-Auth (Card + Remote Unlock) Scope Custom Hardware Build
#20 FLOOD-PARK	Flood Parking using Telegram Flood Early WarningWater Sensor, Telegram	Basement parking early warning flood alarm preventing vehicle destruction during sudden tropical downpours.	Submerged tiered probes detect rising water in sump pits, sounding a 110dB local alarm and broadcasting emergency evacuation alerts to Telegram.	ESP32Liquid Level SensorsTelegram Bot APIHigh-Decibel SirenRelay	Inquire
Engineering Overview & Architecture Addresses a frequent issue in basement car parks during tropical flash floods. Multi-tier water contact probes detect rising water in sump pits and parking ramps, immediately broadcasting emergency evacuation messages to a Telegram group. Technical Capabilities & Firmware Logic Tiered water level sensor inputs (Warning, Alert, Critical) Immediate automated Telegram emergency broadcast Audible high-decibel local siren trigger Automatic sump pump activation relay DEPLOYMENT METRIC Multi-Level (Water sensing) Scope Custom Hardware Build
#21 ESC-MOTOR-	ESC Motor using MQTT High-Power MotorESC, MQTT	Variable speed motor control for high-power industrial ventilation blowers, conveyor lines, and autonomous robots.	Translates MQTT throttle commands into calibrated 50Hz PWM pulses fed to an electronic speed controller (ESC) driving brushless motors.	ESP32Electronic Speed Controller (ESC)Brushless MotorMQTT Protocol	Inquire
Engineering Overview & Architecture Developed for industrial ventilation fans, conveyor prototypes, and autonomous rovers. Translates MQTT throttle percentage payloads into precise 50Hz PWM servo pulses to regulate high-RPM brushless motors smoothly. Technical Capabilities & Firmware Logic ESC calibration and arming safety sequences MQTT throttle topic subscription (`motor/throttle`) Emergency stop topic overriding all commands Tachometer feedback publishing actual RPM to cloud DEPLOYMENT METRIC Brushless (RPM speed control) Scope Custom Hardware Build
#22 VENDING-MA	Vending Machine using MQTT Smart VendingVending, MQTT	Converting mechanical vending kiosks into smart cloud-connected automated dispensing stations.	Upon verified QR/card payment confirmation, cloud publishes MQTT dispense command to spin the selected coil motor, verified by IR drop sensor.	ESP32Relay Bank / Stepper DriversIR Drop SensorMQTT BrokerC++	Inquire
Engineering Overview & Architecture Transforms traditional mechanical vending machines into smart internet-connected kiosks. When an online payment is verified, the cloud server publishes an MQTT dispense command to activate the corresponding motor coil. Technical Capabilities & Firmware Logic Multi-slot dispensing motor driver control Infrared drop-detection sensor verifying item successfully fell Real-time stock deduction reporting via MQTT Offline jam and motor stall error reporting DEPLOYMENT METRIC Dispense (Motor control) Scope Custom Hardware Build
#23 FINGERPRIN	Fingerprint Money Box using MQTT Biometric SafeFingerprint, MQTT	Biometric cash retail drawer and confidential document safe with tamper alarm telemetry.	Capacitive biometric fingerprint sensor unlocks a heavy solenoid bolt, publishing user IDs and vibration tamper alerts to an MQTT audit log.	ESP8266 / ESP32Biometric Fingerprint SensorSolenoid DeadboltMQTT Broker	Inquire
Engineering Overview & Architecture Engineered for cash retail registers and confidential document storage. Access is granted solely through enrolled biometric fingerprints, with every unlock attempt and tamper vibration published to an MQTT cloud audit ledger. Technical Capabilities & Firmware Logic Optical/capacitive biometric fingerprint sensor (R307/FPM10A) Sub-second fingerprint matching algorithm Solenoid deadbolt actuator release on match Vibration tamper sensor triggering MQTT intrusion alert DEPLOYMENT METRIC Biometric (Capacitive sensor) Scope Custom Hardware Build
#24 MOTORCYCLE	Motorcycle Security & Tracker Vehicle GPS TrackerGPS, IoT Security	Anti-theft GPS tracking and remote cellular engine cutoff for delivery fleets and private motorcycles.	Satellite GPS module tracks live coordinates, accelerometer detects unauthorized tilt/towing, and cloud relay cuts engine ignition remotely.	SIM800L / A9G GSM+GPSESP32Accelerometer MPU6050MQTT / HTTP APIIgnition Relay	Inquire
Engineering Overview & Architecture A high-impact vehicle security device engineered for motorcycles and delivery fleets. Tracks live latitude/longitude, detects unauthorized movement via an accelerometer, and allows remote ignition relay cutoff via mobile command. Technical Capabilities & Firmware Logic High-accuracy GPS positioning module with fast satellite fix 6-axis accelerometer detecting anti-theft towing or tilting Remote ignition cutoff relay operable via cloud/SMS Backup rechargeable Li-Ion battery keeping tracker alive if vehicle battery disconnected DEPLOYMENT METRIC Real-time (GPS Coordinates) Scope Custom Hardware Build
#25 RFID-ATTEN	RFID Attendance System using MySQL Database SQL Attendance TerminalRFID, MySQL Database	Automated staff time-clocking and student attendance logging directly into centralized SQL databases.	Wi-Fi terminal reads card UID, sends HTTP POST to backend to record timestamp into MySQL table, and displays employee name on LCD.	NodeMCU ESP8266MFRC522 RFIDMySQL DatabasePHP / Node.js APII2C LCD 16x2	Inquire
Engineering Overview & Architecture Replaces paper sign-in sheets and expensive proprietary punch cards. The Wi-Fi enabled RFID terminal reads the student or employee card, executes an API/SQL transaction to log exact timestamp and shift status, and displays the user’s name on a local screen. Technical Capabilities & Firmware Logic Direct HTTP/REST to PHP/Node.js backend writing into MySQL table Automatic clock-in vs clock-out state detection based on prior daily record I2C LCD screen displaying greeting, employee name, and exact timestamp Late arrival flag calculation based on defined office hours DEPLOYMENT METRIC Direct DB (Automated logging) Scope Custom Hardware Build

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