![]() In addition, you can connect a relay module to the standby output and turn off the amplifier supply, or different scenarios can be applied ( Relay and Relay Circuits) … All details in the video ![]() I added a 2SC945 transistor to the Arduino nano standby output. In order to adjust according to the control in your hand, the same arrangement will be made in the 5.1 Digital Audio Control Circuit Arduino Nano PT2322 PT2323 article. With the button and keyed encoder, all settings can be made via Arduino nano, in addition, it can be controlled with a remote control via IR receiver module connection. Another nice feature is that it is an LCD Spectrum Analyzer, the menu screen leaves its place to the spectrum analyzer after a while, and the spectrum analyzer can be adjusted for the number of columns. ![]() DS3231 module is used for time display, large font clock is displayed in standby mode.
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