Node MCU + HC-SR04 ( Ultrasonic sensor ) did not work with 3.3V !!!

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This video is about using HC-SR04 with NODEMCU
Not working , HC-SR04 5V is required

NodeMCU output 3.3V only

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You can use a 5V power supply but at ECHO pin it is recommended to use a voltage divider or logic level shifter to safely read the voltage for the pin. It also works well with me in raspberry pi.

queenjisoorobredo
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Help, I want to connect a battery and ultrasonic sensor both in nodemcu. But only one VIN pin available, how can I connect both ... Can I connect battery + terminal in 3v as input.?

PhysicsWallahMotivation
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You can use VV pin for your Hc sr04 power supply

zakiemochamad
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you need a Voltage Translator/Level Shifter like KY-051, then you will get the Ky-050(HC-SR04) working, this will converte the 5V in 3.3V so the nodeMCU will can read it

lucianostech
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If you are usb power, you can use the VU pin (5v from USB)

dlopeza
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In case no mentioned, the HC-SR04P will work with 3.3V.

jimjulian
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I need help because i have to make project including ultra sonic but when i use 5v it still give me value of 0 and i dont see any one talk obout that

bodymohamed
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No, it's not that it doesn't work on 3.3. Actually does work if you manually remove the 3.3vcc and plug it again in the same pin WHILE it is running.
The problem only happens in the Arduino startup, when it is first launched it will not work but if you do what I said, you will see it works on 3.3v.

Now I'm trying to figured out someway to make it work without manually doing that... D:

MakerVerse
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I'm trying to transfer the distance I get from hc-sr04 sensors to thingspeak using Nodemcu. Only when measuring distance the sensors work very well but when I write the code to transfer the data to thingspeak or firebase the sensors work very slowly. What could be the reason for this? how can i fix it

farukozgur
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What program are you using for circuit diagram at 0:40 ?

WeeeAffandi
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Thank you bro, ultimately we need to give to 5v from 8266 VV and or from arduino 5v ❤❤

iamhemanthsai
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use 3.3 to 5v bidirectional level converter

abdullahmujahid
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I just made my project working by attaching the Vcc pin of ultrasonic sensor with Vin pin of NodeMCU.

sauravmehtaUnique
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can you plase tell me the connections of all the pins

samratvlogs
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Can NodeMCU be used with two ultrasonic sensors?

rizqisubhan
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It doesn't look like it can be connected directly. Can someone please recommend an ultrasonic sensor that can be connected directly AND that's fully supported by ESPHome?

MKA_NET
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Ultimately we need to give five words from esp8266 VV or 5 volts from arduino UNO 3.3 volts not supporting by ultrasonic (mine)

iamhemanthsai
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Hello,
can someone tell me why my sensor jumps over 100 and back again
I have a external 5v Powersuply, for my sensor.

senger
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use Vin pin in nodemcu it will be solve....

MuthuKumar-bzly
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Isn't the Node MCU 3.3v logic? The signal from the ECHO would burn it.

CuddleStories