Demo catalogue / Distance sensors
Ultrasonic distance sensor HC-SR04
SparkFun · MPN SEN-15569 · agent-readable version
$5.25indicative · 2026-08-18
Captured from SparkFun's own structured data on the date shown — not a quote. Availability is deliberately not claimed.
| SparkFun | $5.25 · 2026-08-18 | product page ↗ |
HC-SR04 datasheetsha256 4ebdc3e1f70d…
Specifications — every value carries its receipt
Electrical
| Working current | 15 mA | datasheet p.1“DC 5 V Working Current 15mA Working Frequency 40Hz Max Rang” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
Performance
| Ultrasonic frequency | 40 kHz | datasheet p.2“the module will send out an 8 cycle burst of ultrasound at 40 kHz and raise its echo. The Echo is a distance object that is p” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
| Ranging accuracy | 3 mm | vendor page“functionality with a ranging accuracy that can reach up to 3mm. $5.25 In stock SKU SEN-15569 Qty - + Add to Cart In stock” https://www.sparkfun.com/ultrasonic-distance-sensor-hc-sr04.html |
| Suggested measurement cycle | 60 ms | datasheet p.2“level time * velocity (340M/S) / 2; we suggest to use over 60ms measurement cycle, in order to prevent trigger signal to th” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
Interface
| Trigger pulse width | 10 uS | datasheet p.1“basic principle of work: (1) Using IO trigger for at least 10us high level signal, (2) The Module automatically sends eight” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
Mechanical
| Dimensions | 45*20*15mm | datasheet p.1“proportion Dimension 45*20*15mm Vcc Trig Echo” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
General
| Measuring range | 2 to 400 cm | datasheet p.1“uct features: Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
| Working voltage | 5 V | datasheet p.1“(340M/S) / 2, Wire connecting direct as following: 5V Supply Trigger Pulse Input Echo Pulse Output 0V” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
| Measuring angle | 15 degree | datasheet p.1“2cm MeasuringAngle 15 degree Trigger Input Signal 10uS TTL puls” https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d… |
Used in
2wd-robot — as range-sensor