WIP code

ADC is sort of functioning, but not reliably. LEDs are sort of working. Buzzer isn't working right and is nearly always on as I can't set the PF2 mode.

include/adc.h

@@ -5,6 +5,18 @@
  * file creation: 20231016 0102
  */
 
+#ifndef _INC_ADC_H
+#define _INC_ADC_H
+
+
+#include <stdint.h>
+
+
 
 void adc_init();
-void adc_next();
+
+uint8_t adc_next();
+
+
+
+#endif /* _INC_ADC_H */