Fix voltage reference in examples

[romainreignier]

The MachineControl boards features a REF3330 3.0 V Reference Voltage.

As mentioned in this https://github.com/arduino-libraries/Arduino_MachineControl/pull/70#issuecomment-1092639038

I have compared the 0-10V input results with an oscilloscope and the values with the 3.3 V reference were wrong but correct with 3.0 V.

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[github-actions[bot]]

Memory usage change @ 493324e203e7d4ce8f8e7a486590c66c0884823e

Board	flash	%	RAM for global variables	%
arduino:mbed_portenta:envie_m7	0 - 0	0.0 - 0.0	0 - 0	0.0 - 0.0

Click for full report table

Board	examples/Analog_Out flash	%	examples/Analog_Out RAM for global variables	%	examples/Analog_input/Analog_input_0_10V flash	%	examples/Analog_input/Analog_input_0_10V RAM for global variables	%	examples/Analog_input/Analog_input_4_20mA flash	%	examples/Analog_input/Analog_input_4_20mA RAM for global variables	%	examples/Analog_input/Analog_input_NTC flash	%	examples/Analog_input/Analog_input_NTC RAM for global variables	%	examples/CAN/ReadCan flash	%	examples/CAN/ReadCan RAM for global variables	%	examples/CAN/WriteCan flash	%	examples/CAN/WriteCan RAM for global variables	%	examples/Digital_output flash	%	examples/Digital_output RAM for global variables	%	examples/Digital_programmable/CombinedIOExpander flash	%	examples/Digital_programmable/CombinedIOExpander RAM for global variables	%	examples/Digital_programmable/Digital_input flash	%	examples/Digital_programmable/Digital_input RAM for global variables	%	examples/Digital_programmable/GPIO_programmable flash	%	examples/Digital_programmable/GPIO_programmable RAM for global variables	%	examples/Encoders flash	%	examples/Encoders RAM for global variables	%	examples/Ethernet flash	%	examples/Ethernet RAM for global variables	%	examples/RS232 flash	%	examples/RS232 RAM for global variables	%	examples/RS485_fullduplex flash	%	examples/RS485_fullduplex RAM for global variables	%	examples/RS485_halfduplex flash	%	examples/RS485_halfduplex RAM for global variables	%	examples/RTC flash	%	examples/RTC RAM for global variables	%	examples/RTC_Alarm flash	%	examples/RTC_Alarm RAM for global variables	%	examples/Temp_probes_RTD flash	%	examples/Temp_probes_RTD RAM for global variables	%	examples/Temp_probes_Thermocouples flash	%	examples/Temp_probes_Thermocouples RAM for global variables	%	examples/USB_host flash	%	examples/USB_host RAM for global variables	%
arduino:mbed_portenta:envie_m7	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0	0	0.0

Click for full report CSV

Board,examples/Analog_Out<br>flash,%,examples/Analog_Out<br>RAM for global variables,%,examples/Analog_input/Analog_input_0_10V<br>flash,%,examples/Analog_input/Analog_input_0_10V<br>RAM for global variables,%,examples/Analog_input/Analog_input_4_20mA<br>flash,%,examples/Analog_input/Analog_input_4_20mA<br>RAM for global variables,%,examples/Analog_input/Analog_input_NTC<br>flash,%,examples/Analog_input/Analog_input_NTC<br>RAM for global variables,%,examples/CAN/ReadCan<br>flash,%,examples/CAN/ReadCan<br>RAM for global variables,%,examples/CAN/WriteCan<br>flash,%,examples/CAN/WriteCan<br>RAM for global variables,%,examples/Digital_output<br>flash,%,examples/Digital_output<br>RAM for global variables,%,examples/Digital_programmable/CombinedIOExpander<br>flash,%,examples/Digital_programmable/CombinedIOExpander<br>RAM for global variables,%,examples/Digital_programmable/Digital_input<br>flash,%,examples/Digital_programmable/Digital_input<br>RAM for global variables,%,examples/Digital_programmable/GPIO_programmable<br>flash,%,examples/Digital_programmable/GPIO_programmable<br>RAM for global variables,%,examples/Encoders<br>flash,%,examples/Encoders<br>RAM for global variables,%,examples/Ethernet<br>flash,%,examples/Ethernet<br>RAM for global variables,%,examples/RS232<br>flash,%,examples/RS232<br>RAM for global variables,%,examples/RS485_fullduplex<br>flash,%,examples/RS485_fullduplex<br>RAM for global variables,%,examples/RS485_halfduplex<br>flash,%,examples/RS485_halfduplex<br>RAM for global variables,%,examples/RTC<br>flash,%,examples/RTC<br>RAM for global variables,%,examples/RTC_Alarm<br>flash,%,examples/RTC_Alarm<br>RAM for global variables,%,examples/Temp_probes_RTD<br>flash,%,examples/Temp_probes_RTD<br>RAM for global variables,%,examples/Temp_probes_Thermocouples<br>flash,%,examples/Temp_probes_Thermocouples<br>RAM for global variables,%,examples/USB_host<br>flash,%,examples/USB_host<br>RAM for global variables,%
arduino:mbed_portenta:envie_m7,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0

[facchinm]

The patch looks correct. @Rocketct would you mind taking some more measurement on a production board and eventually merge? Thx