Robosix
830-Point Solderless Breadboard with 120-Piece Jumper Wire Set
A full-size 830-point breadboard plus 120 jumper wires - the prototyping base every Arduino project starts on.
₹309
₹429
incl. GST
Robosix
HC-SR04 Ultrasonic Distance Sensor
SKU RS-SEN-HCSR04
Classic 2 cm to 400 cm ultrasonic range finder - the go-to distance sensor for obstacle-avoiding robots and school projects.
₹89
₹119
25% off
₹75.42 + 18% GST (₹13.58) · Tax included · You save ₹30
In stock
Free shipping over ₹1000
- Pay by UPI: GPay, PhonePe, Paytm & BHIM (no gateway fees)
- Cash on delivery available
- GST invoice on every order
- Payment confirmed by us before dispatch (no auto-charge)
- Dispatched in 2–4 working days from Agra, Uttar Pradesh.
Buying for a school or in bulk? Ask us for institutional pricing. Get a quote
About this product
The HC-SR04 sends out a short burst of ultrasound and times the echo coming back, exactly the way a bat judges distance. Pulse the Trig pin for 10 microseconds, measure how long the Echo pin stays high, divide by 58, and you have the distance in centimetres.
This is the first sensor most students meet, because it runs happily on 5V, needs no calibration and every Arduino tutorial in the world already has code for it. Obstacle-avoiding cars, automatic dustbins, water tank level indicators and blind-stick projects are all built around this one small board.
Works with Arduino Uno, Nano and Mega, and with Raspberry Pi. On 3.3V boards such as ESP32 and NodeMCU, use a simple two-resistor divider on the Echo pin. Every unit is bench-tested before we dispatch it.
Specifications
| Operating voltage | 5V DC |
|---|---|
| Measuring range | 2 cm to 400 cm |
| Ranging accuracy | Approximately 3 mm |
| Measuring angle | 15 degrees |
| Interface | 4 pin - VCC, Trig, Echo, GND |
| Board size | 45 x 20 x 15 mm |
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