In this Arduino project video, we are going to build a simple FM Radio using the TEA5767 module with a Nokia LCD display. Let's get started!
In this video, we are going to build this. A simple FM Radio receiver on a breadboard. Let's listen to it for a few seconds … As you can see the radio is working fine and we can hear some music coming out of it. I am transmitting some RU-vid safe tracks using this inexpensive FM transmitter at this frequency. I am using the Nokia 5110 LCD display, to display the selected frequency, the signal strength, and a stereo icon if we are receiving stereo sound. The brains of the project are the small and inexpensive Arduino Nano. We can control the volume of the speaker using this potentiometer, and we can change the Radio frequency using this potentiometer. It is a fascinating project and relatively easy to build. Let's see how to build it.
The project is built around this FM radio module. The module uses the TEA5767 radio chip, this one here. The chip uses the I2C interface, so it is straightforward to use with Arduino. On the module, we can also find an audio amplifier, this little chip here. Unfortunately, this is a headphone amplifier so we cannot connect a speaker to the output of the module directly since the audio signal is very weak. We need to amplify it first. Also, there is no way to control the volume that comes out of the module with software, so we are going to use a potentiometer later on. On the module there are two headphone jacks, one is for the antenna, and the other one is the standard headphone output. The module comes with this antenna, but you can easily build your own if you wish. Let's now build the circuit according to this schematic diagram.
💻 Code & Parts: educ8s.tv/arduino-fm-radio-pro...
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1 сен 2017
