Smart Blind Stick

ESP32 IoT Safety & Telemetry Monitor
Disconnected
--:--:--

Heart Rate

MAX30100 I2C (GPIO 21, 22)
Normal
-- BPM
Finger: Placed

Blood Oxygen (SpO2)

MAX30100 Pulse Oximeter
Normal
-- %

Obstacle Distance

HC-SR04 (Trig: 5, Echo: 18)
Clear
-- cm

Buzzer Alarm

Buzzer (GPIO 19)
Idle
OFF
Triggers when obstacle < 40 cm

Live GPS Tracking (OpenStreetMap)

NEO-6M Module (RX: 16, TX: 17)
Satellites: 0
Speed: 0.0 km/h
Lat: --, Lng: --

ESP32 Pinout Mapping

Component ESP32 GPIO Function
MAX30100 GPIO 21 (SDA) GPIO 22 (SCL) Heart Rate & SpO2 (I2C)
NEO-6M GPS GPIO 16 (RX2) GPIO 17 (TX2) NMEA GPS Stream (Serial2)
HC-SR04 GPIO 5 (TRIG) GPIO 18 (ECHO) Ultrasonic Distance Sensor
Buzzer GPIO 19 Obstacle Warning Audio Alert

Live Telemetry Stream

System Dashboard initialized. Waiting for ESP32 connection or simulation...