Hello!
I am using the Arduino Uno R4 Minima to make a FM radio, as well as the HiLetGo LCD Keypad Shield, a TEA5767 Module and etc. I was wanting to use two individual pushbuttons to control volume. For Ex: The top button turns up the volume one notch and the bottom button will do the opposite. How can I do this?
Thank You for Your Time!
The buttons would control whatever means you have chosen to adjust the volume. What is that, and which audio amplifier will you be using?
Please post a circuit diagram and links to the modules.
I don't have an amplifier yet; I need one that isn't the pot. type. I'd like some sort of external control method if possible.
Before worrying about programming buttons, decide on the functional hardware and build the prototype circuit. Digital potentiometers are an option, but there might be an audio amplifier module with digital volume control inputs.
Do you have any recommendations for an amp with digital inputs???
I recommend to spend some time with your favorite search engine, and study all the options. You won't be the first person to build a digitally controlled radio.
The search phrase "audio amplifier module with digital volume control" turns up some interesting hits.
Off the top of my head, how about a plain jane LM386 amp with a 10K digital pot (MCP4161) in place of the usual 10K pot? No guarantees this will work (in fact I see one potential problem already), but it's a starting point.
I'll try that, but it's like 10:41 in my time so I going to get some rest.
Thanks for all your help!
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