How 433 MHz RF Module Works & Interfacing with Arduino

In this video, we will be learning about the 433MHz RF Wireless Transmitter and Receiver Modules. We will also learn how this module works and how wireless communication occurs between them using Amplitude Shift Keying (ASK) Technique.

Finally, we will learn how to use this module with Arduino to transmit and receive data packet wirelessly. And best of all, these modules are super tiny, allowing you to incorporate a wireless interface into almost any project. The transmission range can be increased by increasing antenna length. The antenna length should be 69 cm but such a long antenna is not feasible. So a 17cm antenna can be used.

....................................................................................................................................................................................................................................

Drop a like if you liked this video.
Don't forget to subscribe to our channel for more Electronics projects and tutorials.

[tenlittleindians]

You kept the video short and to the point making it easy to understand for those of us with basic understanding of FM radio. Thanks. I noticed you forgot the link to the source code but anyone that wants to duplicate your experiment can pause the video and read the code off the screen if their monitor is bigger than the phone I'm watching your video on.

[astrospacenomy]

Very good explanation of the code I have watched multiple videos but yours I believe was the best, most inf and was straight to the point keep up the great work

[sivanathann]

Explaination was clear sir, i have one doubt whether its works in nodemcu or we want to change some procedures??
Kindly guide me sir.thanks in advance

[ShopperPlug]

Good tutorial, is it possible you can make a video about how to build a wire cable tracer and explain why and how it works?

[avigarg]

good use of google assistant and video is super easy to understand

[darkblender]

I use the same module in my project. But it did not the send the data even 1 m distance why my range is so short. I try long 17 cm copper rod 30 com wire. Short wire, long wire more then 3m long but still it work work only 30cm or less from tx and rx circuit board. Also try 9 to 12v on the transmitter side but still unchanged range.

[pavankarthiknvs]

Nice explanation. Can I know whether this module works without an Antenna connected at both transmittor and reciever ? Is Antenna mandatory to work with this rf module ? Thank you in advance.

[yogendrakumarpatel]

Thank you for making easily understandable video. Thanks a lot Man

[shaikafzal]

we can use it without an antenna
and it is working great vide

[thisisyourcaptainspeaking]

That's OOK modulation, ASK uses 2 levels of carrier to represent logic 1 and logic 0?

[dannapurnad]

Hello sir, Can I give only connection only VCC, DATA, DATA, GND on one side in case of receiver

[eastern]

Hi sir, may I change the pin12 to another pin as a transmitter?
If I could, how to rewrite my code in arduino?

[xxDeathStarxx]

Would the 433 MHz RF receiver work with any 433 MHz RF transmitter? so you can buy a 433 MHz RF remote and it would work once you decode and stuff?

[frontier]

Good explanation but - did you plug the arduino into the power rails of a breadboard with headers? That looks fully wrong ... i mean nice to sit it there but ... ugh

[its_just_rami]

I'm new to arduino and therefore this, but may I ask if there is a way to send a different signal every time, like after 1 second, a signal is sent, and then after another second, another message is sent. The signal can be binary, and arduino changes it by itself, like first message is and like second message is "00001". Basically the arduino will simulate something like a rolling code with the algorithm inside the arduino itself.

[ashutoshmithari]

how to transmit the float numbers and receive it any blog please suggest

[anokhautomation]

i can't download the Radiohead library from the link?

[kpinnovations]

How can I make both tx and rx communication unique so other rf signals and remotes is not affect the communication I tried this but when I was push any rf remote button the receiver stops communication or take wrong data

[fadyqmr]

Hello sir
Can i connect two transmitter and one receiver such that one receiver reads data from tow transmitter at the same time?

[ashutoshmithari]

can you do the proteus simulation of this because its not workin for me(simulation)