This is the HC-SR04 ultrasonic ranging sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. There are only four pins that you need to worry about on the HC-SR04: VCC (Power), Trig (Trigger), Echo...
The linux device driver registers a character device under /dev/hc-sr04. A user space application written in Python, C, C++, Go, Bash, etc. can then use the open() and read() syscalls on the /dev/hc-sr04 character device. When a read() call is issued a measurement is triggered. ...
GitHub :https://github.com/ZhangGaoxing/windows-iot-demo/tree/master/HC_SR04Demo 你需要在项目中添加一个 C# 代码文件 HCSR04.cs,将下面的代码复制粘贴,并且不要忘记添加引用Windows IoT Extensions for the UWP usingSystem.Diagnostics;usingSystem.Threading.Tasks;usingWindows.Devices.Gpio;namespaceHC_SR04D...
https://github.com/bosgood/arduino-playground/tree/master/lib/HCSR04Ultrasonic 下面仅仅给出測试代码: 当距离小于20CM时蜂鸣器发出警报 #include "Ultrasonic.h" #define TRIGGER_PIN 12 #define ECHO_PIN 13 #define BUF_PIN 7 Ultrasonic ultrasonic(TRIGGER_PIN, ECHO_PIN); void setup() { Serial.begin(...
HC-SR04 ×1 Raspberry Pi 2/3 ×1 公母头杜邦线 ×4 2. 连线 Vcc - 5V Gnd - GND Trig - GPIO 17 - Pin 11 Echo - GPIO 27 - Pin 13 3. 代码 GitHub :https://github.com/ZhangGaoxing/windows-iot-demo/tree/master/HC_SR04Demo ...
https://github.com/xesscorp/xula/blob/master/fpga/xula_lib/hcsr04.vhd Here's the verilog code I've written so far (i'm sure I'm missing a lot): timescale 1 us/ 1 us module sensor (trig, dist, clear, led, clk, echo); output trig, dist,...
Hi guys, i found ultrasonic sensor HC-SR04 code implemented in Altera DE2-115 board here https://github.com/rutgers-fpga-projects/ngc-sonar My
This HC-SR04 has fixed I2C address (0x57), therefore only one unit is allow in I2C bus. For multiple units on single I2C bus, checkout ourUltimate SR04. Thescrew / nut setfor this sensor can be purchased separately. Features: I2C interface (I2C Address: 0x57) ...
超声波模块使用HC-SR04,如图: 该模块的四个引脚说明如下表: 超声波模块测距原理 如图,超声波模块发出超声波信号,如果前方碰到障碍物,则被障碍物反射回来,模块收到回来的超声波后,即可计算出与障碍物的距离: HR-SC04模块工作原理 HR-SC04模块的时序图如下: ...
【Arduino】超声波模块(HC-SR04) 下面仅仅给出測试代码: 当距离小于20CM时蜂鸣器发出警报 #include "Ultrasonic.h" #define TRIGGER_PIN 12 #define ECHO_PIN 13 #define BUF_PIN 7 Ultrasonic ultrasonic(TRIGGER_PIN, ECHO_PIN); void setup() {