ARDUINO NAO – HVS Technologies https://www.hvstechnologies.in Hub for Versatile Science & Technologies Sat, 09 May 2026 12:50:51 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.3 https://www.hvstechnologies.in/wp-content/uploads/2025/07/favicon-32x32-1.png ARDUINO NAO – HVS Technologies https://www.hvstechnologies.in 32 32 HVS-4717.IoT based Automatic Human Following Trolley with Smart Billing System and Webpage Monitoring https://www.hvstechnologies.in/product/hvs-4717-iot-based-automatic-human-following-trolley-with-smart-billing-system-and-webpage-monitoring/ https://www.hvstechnologies.in/product/hvs-4717-iot-based-automatic-human-following-trolley-with-smart-billing-system-and-webpage-monitoring/#respond Sat, 09 May 2026 12:25:01 +0000 https://www.hvstechnologies.in/?post_type=product&p=21220 The "Follow Me Check-Out Trolley with Billing" leverages an array of components including a Battery power supply, Arduino microcontroller, RFID technology, LCD display, DC motor, IR sensor, and SR-04 ultrasonic sensor and esp8266 Wi-Fi module.

]]> The IoT-based Automatic Human Following Trolley with Smart Automatic Billing system presents an intelligent solution to enhance the shopping experience in retail environments. The proposed trolley is designed to automatically follow a human user by maintaining a safe distance using an ultrasonic sensor and IR sensors for direction detection and obstacle awareness. The trolley movement is controlled using DC motors driven by an L298 motor driver, with an Arduino Nano acting as the main controller for processing sensor data and controlling the overall system. An LCD display is integrated into the trolley to show real-time information such as product count and billing status.

For automatic billing, RFID technology is used, where each product is embedded with a unique RFID tag. When products are added to or removed from the trolley, the RFID reader detects the change and updates the bill accordingly. A buzzer alert provides instant audio feedback whenever a product is added or removed, ensuring user awareness. Billing data is uploaded in real time to a web-based dashboard using the ESP8266 Wi-Fi module.

The web dashboard displays detailed billing information including product name, quantity, individual product cost, discount percentage, discount amount, final price of each product, and the total bill amount. This system significantly reduces human effort, minimizes billing errors, and eliminates long checkout queues. The proposed smart trolley offers a reliable, efficient, and user-friendly solution for modern supermarkets and smart retail environments.

Objectives:

  • To design a trolley that automatically follows a human user
  • To implement RFID-based automatic billing
  • To display real-time billing data on LCD and web dashboard
  • To reduce shopping effort and checkout waiting time
  • To improve billing accuracy and transparency
  • To integrate IoT using ESP8266 for live data uploading

 

The major building blocks of the project are:

 

  • Battery power supply.
  • LM2596.
  • Arduino nano Micro controller.
  • RFID reader and Tags.
  • IR sensor.
  • SR-04 Ultrasonic sensor.
  • DC motors with l298 motor driver.
  • LCD display.
  • Buzzer.
  • ESP 8266 Wi-Fi module.

 

Software’s used:

  • Embedded C programming.
  • ARDUINO IDE for dumping code into Micro controller.
  • Express SCH for Circuit design.

 

 

 

 

 

 

 

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]]> https://www.hvstechnologies.in/product/hvs-4717-iot-based-automatic-human-following-trolley-with-smart-billing-system-and-webpage-monitoring/feed/ 0 HVS-4619. IoT Smart Energy Meter Monitoring with Theft Detection https://www.hvstechnologies.in/product/hvs-4619-iot-smart-energy-meter-monitoring-with-theft-detection/ https://www.hvstechnologies.in/product/hvs-4619-iot-smart-energy-meter-monitoring-with-theft-detection/#respond Sat, 21 Feb 2026 10:28:05 +0000 https://www.hvstechnologies.in/?post_type=product&p=11773 Energy crisis is one of the major problems that the world faces today. The energy crisis can be reduced to a certain extent by properly monitoring our energy consumption and avoiding energy wastage. Nowadays people face many problems like power theft. Power theft may be a measure crime and it also directly affects the economy of our country. This system will find energy theft easily. This IOT electricity meter is consisting of Arduino Nano microcontroller with a WI-FI module for IOT connection and GSM module for mobile connection, on which users will receive information via SMS.

Arduino will measure the energy meter reading in KWH will be display on LCD as well as will be monitor on webpage using esp8266 wi-fi module. With the help of buttons, we can set costs for the unit. In the case of energy theft, the theft will be caught and displayed on the IOT screen and the information will send to the user mobile number in the form of SMS and activate the Buzzer for alert. After receiving the alert SMS, the operator can switch off the system using IOT to avoid theft. It also shares turn off the message of the system on the cell phone. Here relay works as a switch to ON/OFF the power supply. Arduino will send the parameters like units, price theft status into the WEB dashboard. To achieve this task microcontroller loaded program written in embedded C language.

 

Components used: 

  • Arduino UNO.
  • Power supply
  • Energy Meter
  • Optocouplers.
  • GSM modem.
  • LCD display.
  • Relay.
  • Esp8266 wi-fi module.
  • Theft switch.
  • Two Bulbs.
  • Buttons.

Software used:

  • ARDUINO IDE STUDIO Compiler.
  • IOT technology.
  • Embedded C language

 

 

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