completed
Human Blind Detector Prototype
Kolej Komuniti Hulu Selangor — 2022
Built a visual-impairment assistive prototype using an ESP32 microcontroller, synced with the Blynk mobile app.
esp32 iot assistive-tech
project gallery
problem
- ›Designing a low-cost assistive device that alerts a visually impaired user to nearby obstacles.
- ›The user needs a notification channel that does not require looking at a screen.
architecture
- ›ESP32 samples an obstacle sensor and pushes events to Blynk.
- ›Blynk app delivers alerts to the phone with haptic and audio feedback.
technologies
- ›ESP32
- ›Blynk
- ›IoT
- ›Sensor integration
security
- ›Not applicable — prototype hardware with no persistent data.
what i built
- +ESP32 firmware for sensing and event push.
- +Blynk dashboard wiring for alerts.
- +Enclosure and sensor mounting.
what i learned
- +IoT prototyping moves fast — ESP32 + Blynk took days, not months.
- +Assistive design is about the notification UX, not the sensor.
current status
Complete as a prototype and demonstrated at Kolej Komuniti Hulu Selangor.