Catalogo dimostrativo / Sensori di distanza

Ultrasonic distance sensor HC-SR04
Foto: SparkFun (CC BY 2.0) · acquisita il 2026-08-18 · sha256 9f5afe869ebc…

Ultrasonic distance sensor HC-SR04

SparkFun · MPN SEN-15569 · versione leggibile dagli agenti

$5.25indicativo · 2026-08-22

Rilevato dai dati strutturati di SparkFun alla data indicata — non è un preventivo. La disponibilità non viene deliberatamente dichiarata.

SparkFun$5.25 · 2026-08-22pagina prodotto ↗

Scheda tecnica corroborata Partsgraph (PDF)documento proprio · compilato dalle fonti elencate sotto

HC-SR04 datasheetsha256 4ebdc3e1f70d…

Specifiche — ogni valore porta la sua ricevuta

Elettrico

Corrente di lavoro15 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…

Prestazioni

Frequenza a ultrasuoni40 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…

Precisione della misura di distanza3 mm
pagina del fornitore
“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

Ciclo di misura suggerito60 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…

Interfaccia

Larghezza dell’impulso di trigger10 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…

Meccanica

Dimensioni45*20*15mm
datasheet p. 1
“proportion Dimension 45*20*15mm Vcc Trig Echo”

https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d…

Generale

Campo di misura2 a 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…

Tensione di lavoro5 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…

Angolo di misura15 degree
datasheet p. 1
“2cm MeasuringAngle 15 degree Trigger Input Signal 10uS TTL puls”

https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdfsha256 4ebdc3e1f70d…

Usato in

Robot esploratore a 2 ruote motrici — come Sensore di distanza