STM32 based controller.
![](https://enthru.net/wp-content/uploads/2023/11/telegram-cloud-photo-size-2-5415725929877066379-y.jpg)
Board with BCD decoder (not soldered) and transistors (not soldered too 🙂 ) to control LPF and additional control switches:
![](https://enthru.net/wp-content/uploads/2023/11/telegram-cloud-photo-size-2-5415725929877066381-y.jpg)
PA controller back:
![](https://enthru.net/wp-content/uploads/2023/11/telegram-cloud-photo-size-2-5415725929877066383-y.jpg)
STM32 based controller.
Board with BCD decoder (not soldered) and transistors (not soldered too 🙂 ) to control LPF and additional control switches:
PA controller back: