Okay. But instead, I would like to turn this HCSR04 module into a microphone that is very sensitive to noise changes and be able to detect who is whispering at night since I have neighbors who live respectively adjacent to my house. I am definitely looking for a comforting result. Responding to my post is NOT a crime. :) Hi.
Sir, the diagram shows 10 microfarad capacitor across pins 1 & 8, but in the video you use 100 microfarad across the 2 pins. Also, if you are generating pulses (555 as an astable multivibrator, then you have not connected any capacitor between pin 2,6 & ground. Also if you use a preset directly between pins 7 & 8, you can blow out the IC when the preset value is set to zero ohms. Please show the correct circuit.
r04-27-2023 (1.) Hi, there. (2.) Very new to electronics. (3.) As mentioned in a post from Chetan Anam, the circuit diagram shows the 10uF 63v capacitor matching NEG and POS to 555 pins 1 and 8, respectively, and then the POS and NEG for the 100uF 63v capacitor tying into the buzzer POS and buzzer NEG. These two capacitor assignments/locations get switched in the video, so wondering which is correct. (4.) Regarding the two front legs of the skeleton potentiometer/variable resistor/pre-set, is it the front-left or the front-right leg that gets connected to 555 pin 8? [ It appears that the rear wiper leg connects to 555 pin 7. ] (5.) Also, could you add a video or photo that shows the connections on a breadboard? [ Still learning which components should be connected, and where to connect those items, when trying to decipher a circuit diagram. ] (6.) Thanks. (7.) Toodles!
Buzzer capacitor is to filter the current and the 555 timer capacitor is for generating the desire frequency... Frequency of the circuit depends on the capacitor and resistors. You need to generate specific frequency to trigger the ultrasonic sensor
How do I keep from hearing the pulse. I hear the pulse through the speaker and then the buzz when an object is placed in front. Also can the range be 8 feet?
What is the detection range, means that what should be the maximum distance that it can detect the object, and how can we decrease its range to about 10cm.... pls reply fast
Using this circuit you can't use a pump. You have to use an additional transistor or mosfet or relay module with it. My opinion go for Arduino for better result.
Of course... If you're getting the output of 5v in the buzzer terminal... If you get less than 5v... I suggest you increase the input voltage higher than 5 volt... Your timer won't go bad or misbehave because it can operate from 4.5 to 12 v
@@bbnCRLB range is nothing but the intensity of sound.... So you you give more power supply... The ultrasound will be louder traveling more distance.... You could do that way... Or you can do the math and calculate the speed of sound coming back and set it's echo to trigger at desire range
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Thank you soooo much for the detailed explanation step by step, you can't imagine how you helped me with my project 🌷Allah bless you.
Could you please explain why did you use capacitors and why is there a delay before the buzzer beeps?
Okay. But instead, I would like to turn this HCSR04 module into a microphone that is very sensitive to noise changes and be able to detect who is whispering at night since I have neighbors who live respectively adjacent to my house. I am definitely looking for a comforting result. Responding to my post is NOT a crime. :) Hi.
how would you change distance between the HC SR4 and the obstacle?
Sir, the diagram shows 10 microfarad capacitor across pins 1 & 8, but in the video you use 100 microfarad across the 2 pins. Also, if you are generating pulses (555 as an astable multivibrator, then you have not connected any capacitor between pin 2,6 & ground. Also if you use a preset directly between pins 7 & 8, you can blow out the IC when the preset value is set to zero ohms. Please show the correct circuit.
r04-27-2023
(1.) Hi, there.
(2.) Very new to electronics.
(3.) As mentioned in a post from Chetan Anam, the circuit diagram shows the 10uF 63v capacitor matching NEG and POS to 555 pins 1 and 8, respectively, and then the POS and NEG for the 100uF 63v capacitor tying into the buzzer POS and buzzer NEG. These two capacitor assignments/locations get switched in the video, so wondering which is correct.
(4.) Regarding the two front legs of the skeleton potentiometer/variable resistor/pre-set, is it the front-left or the front-right leg that gets connected to 555 pin 8?
[ It appears that the rear wiper leg connects to 555 pin 7. ]
(5.) Also, could you add a video or photo that shows the connections on a breadboard?
[ Still learning which components should be connected, and where to connect those items, when trying to decipher a circuit diagram. ]
(6.) Thanks.
(7.) Toodles!
Why are you using capacitors in crircut,(plz reply)
Buzzer capacitor is to filter the current and the 555 timer capacitor is for generating the desire frequency... Frequency of the circuit depends on the capacitor and resistors.
You need to generate specific frequency to trigger the ultrasonic sensor
And Bro Yeh Apne Connect Kisse Kiya Hai Ek Hi Ic Pin Ka 2 Jagah Like Wire Se Ho Skta H
Hello, will it work the same way if we install the micro vibration motor in phones instead of the buzzer?..
Buzzer is going on after attaching the battery, any solution?
great project!
can we use a mini pump 3-5v instead of the buzzer ?
Any load would do
Can change the distance...?
Can we seperate it into two different devices ( i mean the transmitter and receiver seperate) wirb two circuit diagram.
Its response time looks slow, what if i need to detect a falling object in front of ultrasonic sensor, will it detect?
How do I keep from hearing the pulse. I hear the pulse through the speaker and then the buzz when an object is placed in front. Also can the range be 8 feet?
What is the detection range, means that what should be the maximum distance that it can detect the object, and how can we decrease its range to about 10cm.... pls reply fast
You have to use an arduino. Please watch automatic water tap video of this channel
Please reply fast changed my mood🥴
the maximum range of an ultrasonic sensor is 4 meters
What is the max range please do reply
Sir can we use 103 code (upper white colour) preset.
Iske bajae
Please tell me fast Please 🙏🙏🏻🙏🙏
No..103 will not work
Hi, can we use a motor instead of the buzzer? If yes then how to connect
You can remove the buzzer and replace it with motor... But make sure your input source can drive the motor connected
How to change the distance....what is the reason use the variabke resistor...?
My sensor making tik tik noise what should i do ?
Why are we using 1K ohm resistor pot and these capacitors in particular? Can u explain the circuit design
How long it covers d distance frm an object
About 30 cm
Working perfectly.. Bro..
How can we keep the distance range
Good project
Bro Yeh 100/ Work Toh Karega Na
Pls reply I need ur help with my project
so helpful. thanks. I am wondering doesthe hr204 produce a voltage upon detection of an object?
cant see the schematic you put the circuit board over part of it in the way
You need a lower value capacitor in the circuit.
Can we use 100uf 50v capacitor?
Buzzer
Pcb bolong
Solder
Timah
Kapasitor 100 mikro farad
Ic 555
1 k resistor
10 k trimpot
Hc sr04 ultra sonic
Baterai 10 volt
Kapasitor 10 mikro farad
Will a 3v sbmersible pump work on this...for making automatic hand sanitizer
Yes of course
Using this circuit you can't use a pump. You have to use an additional transistor or mosfet or relay module with it. My opinion go for Arduino for better result.
The circuit is giving sound continuously... Even if there is no obstacle infront of ultrasonic sensor ... Plz tell me what to do?
Adjust the pre-set
@@technoreview85 u mean the potentiometer!? Ri8?
Yes...
I have had the same problem. How can this be solved?
Can we adjust the range
can i use lm358 ic ??
Nah... You can't.... Even if you're able to use.. The circuit will be different.....
The pin of ic 555 and lm358 is not same
❤High level mana bna li
Can we use 9v battery instead of 4v battery replay fast
No
@@technoreview85 tq bahi
How to adjust the distance .? Last sensing distance.?
Can we adjust the range??
Yes little bit but not like Arduino used circuit
@@technoreview85 thanks for your reply.... keep it up ✌️
Wanna need circuit diagram please..
Circuit diagram is included. Please watch full video
Can we operate 5v water pump instead of buzzer
Of course... If you're getting the output of 5v in the buzzer terminal...
If you get less than 5v... I suggest you increase the input voltage higher than 5 volt... Your timer won't go bad or misbehave because it can operate from 4.5 to 12 v
bro can you provide pcb link for this project??
Can it detect from 4 meters?
No..
@@technoreview85 How did you calculate your component values? That way one could extend the range of the device.
@@bbnCRLB range is nothing but the intensity of sound.... So you you give more power supply... The ultrasound will be louder traveling more distance....
You could do that way... Or you can do the math and calculate the speed of sound coming back and set it's echo to trigger at desire range
@@technoreview85 its can if 2meter
Circuit diagram please?
Included in this video or can find link in the description.
Its not working I have connected a DC motor instead of the buzzer
The Ic can't drive a motor otherwise you have to use a MOSFET or transistor for it
@@technoreview85 can you help me with the transistor added circuit diagram
When there is no obstruct in front of the sensor then it blinking the led what I used instead of buzzer.
Can you please help me
Using IC full name?
555 its a popular ic
Bro all time i can hear the pulse bro
Help me
Does anyone has proteus version of this circuit?
Bhai ye kaam nahi Kar raha hai
1:23 video starts here
Okay
Nice
😎
Working now !!
Tune the preset & use 5v supply. The circuit is absolutely correct.
@@technoreview85 oooo ok it's now working in 7cm range thanks !
Do you sell me this
I have 8884570727...
My circuit runs good without ic 😂😂😂
Can you tell me how?
tk paham nyahh
What is the max range please do reply
What is the max range please do reply
What is the max range please do reply
What is the max range please do reply
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