DIY retro look FM radio with TEA5767 module скачать в хорошем качестве

DIY retro look FM radio with TEA5767 module

The base for this project is the code of Rodolfo Broco Manin (RodLophus on GitHub) which contains a beautiful analog scale on 16x2 LCD. I modified his code by adding two analog meters for reading the signal strength and frequency, "stereo" LED, and "auto /manual search"LED. Also, as a retro detail, I added four memory keys whose frequencies are predefined in the code, so the radio gets a completely antique look. Audio outputs of the TEA5767, via a stereo potentiometer, are connected to the D class power amplifier module with the power of 2x3w which is quite enough for this purpose. To the amplifier are connected two 2way speakers with adequate power. The high-tone speaker is separated from the bass-midrange speaker with 1mf capacitor. Аnalog meters are from an old defective radio but you can use any meter, and a full deviation of the needle will be adjusted with trimmer potentiometers. The device is powered by two lithium batteries in series through a 7805 stabilizer, so we have stabilized 5V source. Let me mention that the frequency meter needle is updated sequentially for every 1Mhz, which I think is a consequence of the library, but if someone finds a solution to the smooth movement of the needle, I would gladly accept it. Reception is excellent, especially for strong local FM stations, while in weaker stations there is a need for a stereo/mono switch due to frequent interruptions of stereo to mono and vice versa. In the next update of code, I plan to insert "stereo/mono" and "mute" switches. The whole assembly is embedded in the appropriate box on which is mounted a telescopic antenna, so we have a complete FM stereo receiver with a nice retro look. Complete scheme and Arduino code for this project can be found at: https://www.hackster.io/mircemk/diy-r... If you are interested in this area, look at the Playlist with all my DIY Radios at:    • All My DIY Radio Receivers   Thanks for watching