| _version_ | 1866901335263150080 |
|---|---|
| author | V. Vittal Reddy Naragam Manikanta Raghava Modugumudi Jahnavi Namburu Venkata Siva Prasanth Mohammed Habeeb Pasha |
| author_facet | V. Vittal Reddy Naragam Manikanta Raghava Modugumudi Jahnavi Namburu Venkata Siva Prasanth Mohammed Habeeb Pasha |
| contents | Home automation has become affordable and widespread. It has not become accessible for the visually impaired persons(there are 295 million people live with moderate to severe visual impairment across the world), nearly all encounter immediate barriers with standard interfaces: touchscreens demand sight, voice recognition demands quiet rooms and clear diction. We built for Braille readers instead. Two ESP32-WROOM-32 microcontrollers — one managing a six-pushbutton Braille keypad, one driving an eight-channel relay board — communicate over a persistent TCP/IP link. The keypad module provides tactile and auditory confirmation of every action. The appliance module controls two room lights, two capacitor-regulated fans with four distinct speed steps, a servo-operated door lock, and a dual-sensor fire detection circuit that pairs an IR flame detector with an MQ-2 gas sensor to suppress false alarms. Blynk cloud connectivity allows remote monitoring and caregiver alerts. Commands reached the relay board in under 350 ms under typical home Wi-Fi. Fire alerts dispatched in under 500 ms. The system ran without fault for 48 continuous hours. No false fire alert was generated across all single-sensor test scenarios. |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19185379 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Braille-Based IoT Home Automation System for Visually Impaired Users using ESP32 Microcontroller V. Vittal Reddy Naragam Manikanta Raghava Modugumudi Jahnavi Namburu Venkata Siva Prasanth Mohammed Habeeb Pasha Braille Tactile Interface IoT Assistive Technology Visually Impaired Home Control ESP32 Dual-Sensor Fire Detection Blynk Cloud Notification Home automation has become affordable and widespread. It has not become accessible for the visually impaired persons(there are 295 million people live with moderate to severe visual impairment across the world), nearly all encounter immediate barriers with standard interfaces: touchscreens demand sight, voice recognition demands quiet rooms and clear diction. We built for Braille readers instead. Two ESP32-WROOM-32 microcontrollers — one managing a six-pushbutton Braille keypad, one driving an eight-channel relay board — communicate over a persistent TCP/IP link. The keypad module provides tactile and auditory confirmation of every action. The appliance module controls two room lights, two capacitor-regulated fans with four distinct speed steps, a servo-operated door lock, and a dual-sensor fire detection circuit that pairs an IR flame detector with an MQ-2 gas sensor to suppress false alarms. Blynk cloud connectivity allows remote monitoring and caregiver alerts. Commands reached the relay board in under 350 ms under typical home Wi-Fi. Fire alerts dispatched in under 500 ms. The system ran without fault for 48 continuous hours. No false fire alert was generated across all single-sensor test scenarios. |
| title | Braille-Based IoT Home Automation System for Visually Impaired Users using ESP32 Microcontroller |
| topic | Braille Tactile Interface IoT Assistive Technology Visually Impaired Home Control ESP32 Dual-Sensor Fire Detection Blynk Cloud Notification |
| url | https://doi.org/10.5281/zenodo.19185379 |