modules::voltage::VCC Class Reference

#include <voltage.h>

Public Member Functions
void	Step ()
	Reads the ADC, checks the value.
uint16_t	CurrentBandgapVoltage () const

Detailed Description

We are measuring the bandgap voltage, Vb=1.1V To compute the threshold value: VAL = 1125.3 / AVCC So for:

• AVCC=5V, you get VAL=225.06
• AVCC=4.1V, you get VAL=274.46
• AVCC=4V, you get VAL=281.35

Any lower and the board will probably die sooner than being able to report anything. The TMC will die, but the atmega32u4 seems to be a bit more resilient. It's still out of spec anyway since the atmega32u4 is rated for 16MHz only at >4.5V.

Member Function Documentation

CurrentBandgapVoltage()

uint16_t modules::voltage::VCC::CurrentBandgapVoltage ( ) const

inline

Returns

the current bandgap voltage level, platform dependent.

Note

see VCC measurement setup in config.h

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The documentation for this class was generated from the following files:

• src/modules/voltage.h
• src/modules/voltage.cpp