Questions tagged [hc-sr04]
The hc-sr04 tag has no usage guidance.
15
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HC-SR04 with pic18f24k22 doesn't work
I'm trying to find the problem with my code, because It seems like I can't get the echo back from the sensor or it's not registered. Any help would be appreciated, thank you
The code :
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What is the purpose of this extra capacitor in this opamp low pass filter?
I'm trying to follow along with this blog post reverse engineering the HC-SR04 ultrasonic distance sensor.
The signal from the receiving transducer is amplified, filtered, and then amplified again.
On ...
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Ultrasonic sensor not detecting any values when using Arduino and LabVIEW
I have connected the circuit as shown.
The circuit works perfectly when I Use the Arduino ide.
When I use LabVIEW, the distance from the ultrasonic sensor is always zero.
The LabVIEW circuit diagram ...
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Why can't the HC-SR04 sensor detect objects that are very close to it?
I am following this worksheet and I am struggling to understand the following piece of code:
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- 141
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HCSR04 with PIC18f24k22 stuck in real test
I have a problem with HCSR04 ultrasonic distance sensor. I wrote a code that works perfectly in Proteus simulator but when I upload it in real microchip it stop working properly. Looks like it sticks ...
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How do I cutoff power to ultrasonic HC-SR06 when it is not been used, to save power
I want to read an ultrasonic sensor data every 10 minutes and expect that the module should be turned off in order to save power.
How do I do this?
I tried with a BC547 and PN2222 transistor but I end ...
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92
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Functional block digram of a HC-SR04?
Can anyone illustrate a functional block diagram of a HC-SR04 ultrasonic sensor? I understand how it works when it comes to the application but I would like to know how it works fundamentally as a ...
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Arduino DC Motors Not Working Correctly With The Servo
I m building a simple obstacle avoidance robot. Here I Typed the code. But there is a bug I cannot find . The Motors are not working properly when they intergrated as whole. when I check the codes and ...
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99
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Ultrasonic module Water proof vs non-water proof types
Ranging SR04 Ultrasonic modules are available as water proof and non-water types.
In the water proof types SR04 modules there is only 1 sensor while in the non-water proof types SR04 there are 2 ...
- 1,381
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76
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Dummy Ultrasonic Transducer
I have several HC-SR04 modules which I wish to modify. There are two modifications in particular I want to ask about
First, I am going to use two modules in parallel to determine location as opposed ...
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2
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440
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HC-SR04 Distance Sensor Trigger Signal on 2.5V Voltage level gives no reading
I am using an Arduino on a breadboard setup with an ATMEGA328p MCU. The whole circuit is designed to work in a low-power state and is powered using a 3V (Nominal) voltage Coin Cell. The HC-SR04 is ...
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Is it possible to make an LED turn on with an HC-SR04 without using an arduino? Only when an object is near it?
I don't know anything about coding so I wish to achieve this effect without a help of an arduino. I'm trying to minimize as much power as possible and trying to achieve the HC-SR04 sensor to sense ...
- 21
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2
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147
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HC-SR04 Ultrasonic sensor below a grid plate
I want to use the ultrasonic sensor under a metal grid plate like below (just 1 of those plates instead of 3). The sender/receiver will be under (partly inside) two adjecent holes (hopefully it fits) ...
- 13.6k
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Can I interconnect all echo pins from multiple ultrasonic sensors?
I want to use (probably) four ultrasonic sensors HC-SR04.
These use a trigger pin and echo pin.
For the echo pins, I want to connect them to a timer with 'Combined Channels PWM Input on CH1', and the ...
- 13.6k
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HC-SR04 with STM32 gives unexpected values
On an Arduino it is easy to get an HC-SR04 ultrasonic sensor getting to work.
However, on my STM32(F103C8T6) I get strange values.
I assumed I connect it correctly, since I get values on the trigger ...
- 13.6k