Vinod writes, “This is an FM transmitter directly made from STM32F407 discovery. It transmits the wav file stored in internal flash via FM at 100MHz. The modulation over here is happening by a tricky feedback from the analog output of the same mcu to the crystal oscillator there by disturbing the crystal frequency and creating […]
Tag Archives: FM transmitter
Mini FM transmitter
electronics-diy shows you how to easily make a mini FM transmitter: It transmits FM waves so you could easily receive the signals on your mobile phone, radios, etc. As the name and the picture indicates it is very small and is approximately the size of a 9v battery clip. With this FM transmitter you could […]
Telephone FM transmiter, AKA phone bug
If you ever wondered how those phone bugs from spy movies work, here is the schematic for your very own. This simple FM transmitter uses a phone line to both power the device and receive the audio signal. Just hook it up to the phone line you want to monitor and tune your FM radio […]
iPod FM transmiter
Electronics-DIY has instructions on how to build a simple portable FM transmitter that would allow your iPod to broadcast music over radio waves. It is simple to build and fits into a mouse case. It works quite easy, there is a power switch on the bottom to turn it on and tune your radio and […]
Stereo FM transmitter
Here is a stereo FM transmitter design, based around the BA1404 integrated circuit. If you want to get rid of those pesky audio wires leading from your computer to your amplifier here is a simple circuit that will enable you to do just that. Simply atach the audio-out cables to the circuit and tune your […]
Dead bug FM transmitter
This simple FM transmitter circuit is made from through-hole parts on a scrap of circuit board. A nice example of dead bug prototyping. Did you know NASA has dead bug standards? Via Hack a Day.