2 layers80 × 60 mm
EnvMonitor
kennySzhucheng/EnvMonitor
🌡️ 智能环境监测站 | STM32F103C8T6 + FreeRTOS + ESP8266 | 温湿度/光照/测距/OLED菜单/ThingSpeak上云 | 从裸机到RTOS到KiCad PCB全流程
27 parts10
Overview
The HC-SR04 is an ultrasonic Receivers, Transmitter made by Universal Microelectronics with 4 pins. - Ultrasonic Receivers, Transmitters ROHS.
PCBKit's library has its footprint (EasyEDA_Cloud:TH_HC-SR04V, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C19857336). 127 open-source boards in 116 repositories on GitHub use it.
Symbol
The library has no symbol for this part yet.
Footprint
What it is and has
10- Power supply
- +5V DC · p. 2
- Quiescent current
- <2mA · p. 2
- Working current
- 15mA · p. 2
- Effectual angle
- <15° · p. 2
- Ranging distance
- 2cm – 400 cm/1″ – 13ft · p. 2
- Resolution
- 0.3 cm · p. 2
- Measuring angle
- 30 degree · p. 2
- Trigger input pulse width
- 10uS TTL pulse · p. 2
- Echo output signal
- TTL pulse proportional to the distance range · p. 2
- Dimensions
- 45mm x 20mm x 15mm · p. 2
Parameters
8- Features
- TOF measurement engine
- Frequency - Center
- 40kHz
- Functional Type
- Transceiver
- Height
- 15mm
- Launch Angle
- 15°
- Length
- 45mm
- Maximum Voltage
- 5V
- Width
- 20mm
Order codes
1- HC-SR04LCSC C19857336
Open-source boards using it
All 127- 2 layers120.7 × 184.1 mm
- 2 layers110 × 80 mm
Noko 2
NikolaiRadke/Noko_2
The do-it-yourself Arduino-based Noko monster. Version 2 with PCB and 3D printed casing.
51 parts3Apache-2.0 - 2 layers150 × 100 mm
Maze kiCad
billtsol/Maze
This project demonstrates how to use an Arduino board, IR sensors, and a motor driver shield to create a maze-solving robot.
39 parts2 - 2 layers111.5 × 102 mm
Wall e
c-lydia/ESP-ROS2
A tiny robot with IMU (MPU5060) and an ultrasonic sensor (HC-SR04), running on micro-ROS, communicating over UDP.
12 parts2Apache-2.0 - 2 layers25.2 × 27.3 mm
Cf2-hcsr04
dbrgn/crazyflie2-hcsr04
Ultrasonic sensor (HC-SR04) extension board for the Crazyflie 2.0
9 parts2 - 2 layers
Aegis
YousefAliAicha/aegis-embedded-system
Networked rotating ultrasonic radar system built on the Deneyap Kart 1A (ESP32-S3), with a real-time web dashboard served directly from the board.
9 parts2MIT - 2 layers170.2 × 119.4 mm
Sentinel
YousefAliAicha/sentinel-arduino-firmware
Adaptive traffic-light FSM on the Arduino UNO R3 — pedestrian preemption, LDR-gated night mode with HC-SR04 vehicle detection, and a multiplexed 7-segment countdown. Fully non-blocking.
25 parts2MIT
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/universal-microelectronics/HC-SR04" title="HC-SR04 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/universal-microelectronics/HC-SR04.jpg" alt="HC-SR04" width="1200" height="900">[](https://pcbkit.io/parts/universal-microelectronics/HC-SR04)Questions
Is there a KiCad symbol and footprint for the HC-SR04?
Yes. the footprint EasyEDA_Cloud:TH_HC-SR04V, both drawn on this page. PCBKit places them on a board for you when you design with it.
Where is the HC-SR04 datasheet?
Universal Microelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the HC-SR04?
JLCPCB lists it as part C19857336, with 0 in stock; the sellers' links on this page open their listings.
Which open-source boards use the HC-SR04?
127 boards in 116 repositories on GitHub; the most starred are listed on this page, with their KiCad files.