Hello my friend, thank you for your comment. Of course, I said in the previous video that these modules are not suitable for sending sound. But with this comment, you said something that I didn't know and it was very interesting. Previous video: kzfaq.info/get/bejne/l7anabapmtLXqac.html

@@BabakStars I have been given a kit containting 2 or 3 "pairs" of 433MHz transmitter and receiver unit. The board features a 2 transistor receiver (RF preamp and Receiver) plus said "LM358" as schmitt trigger to convert received data signals into a proper suqare wave signal for the micro controler. I did play around with them a bit, but the receiver is faulty (that is why it was extremly cheap). It has all parts installed for the RF preamp, but the actual transistor is missing. The "spot" where it´s supposed to be installed is empty... and so the result is... the set does work, but the range is only like 30ft, whilst if I´d use it´s transmitter at maximum power, the range would be more than a mile (to a communications receiver). If you don´t pull the "data pin" to ground (or was it to B+?) fully, but instead use a transistor, potentiometer (sth like that) you can modulate the transmitter with an audio signal by "half keying" it. Depending on how high the RF level you want to get out from it is, you either get acceptable AM, or AM with parasitic narrowband FM. On a good receiver, such as a communications receiver, you will then have to either use "N-FM" for hearing the transmitter, or use am + slope detection. As a super regenerative receiver is very wide banded, the small ammount of FM won´t be noticeable if you receive the transmitter modul with the "supposed to be operated with" receiver unit. I didn´t really transmitt / use these devices (like turn it on, let it transmitt music, and see how far it goes) because they work on a fixed frequency of 433.92MHz, and that is a frequency used by a lot of devices... be it your wireless temperature sensor, or an older car-remote-key to open the car. I didn´t want to "block" that frequency, because the devices that work at it usually just send a

Thanks a lot🙏🙏🙏🙏🙏🙏❤️

Thanks

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You can translate it with the help of subtitle settings.

GitHub link in the description

You don't need to be a genius to upload a video to KZfaq. In the previous part, it was said that this video was made at the request of one of the contacts, and because my contacts are important to me, I made this project. I'm also getting more experience in rebuilding the wheel and maybe I can share more tips to avoid making wheels like Tupolev.