For the ESP 32 frontpanel i ordered some potentiometer from china. After they arrived, i am very disappointed with the quality. In the following Post i wanna show you the disadvantages of some to cheap potentiometer knob, so that you don`t order the wrong potentiometer knobs.
After a time my Braun 320s-4 shaver still not have the endurance. The battery is after 2-3 minutes empty. So i decide to change the battery inside.
You wanna use the Arduino serial (UART) with a Mega 4808 board? No, problem. The Mega 4808 has three serial (UART) interfaces. Here you can read on which pins you can use the serial (UART) interface and how to use it.
For testing your code for the Mega 4808 with Arduino you need a board where every pin is accesable.
The PCB for the ESP32 frontplate is done and works. Now its time to build a enclosure for it.
For a time i build the iniversal audio amplifier with a PT2033 which can be programmed over I²C. Now its time to make a frontpanel to control this amplifier
You wanna programm the Mega 4808 or an other megaAVR 0-series microcontroler? Then you need a UPDI programmer. You can buy the Atmel ICE for ~100$ or you can make your own UPDI Programmer.
You wanna use the Mega 4808 with MegaCoreX and Arduino? Then you need the standard pin usage / pinout for it.
You wanna get started with the Mega 4808 in Arduino and you do not now how? Here is your answer.
Every speaker builder now the moment when you have an idea for your own customized speaker and you are searching for an amplifier which fits the needs. Most of the chinese Amplifiers has a horrible background noise or large transient noise. Nothing is worser than to see your own build speaker which is ruined through a bad amplifier.