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Open-Source Automated Mapping Four-Point Probe
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== Error messages == * Sample not detected. Skip this point: It means either there is no sample connected to the probe or the resistance of the sample is too high such that it exceeds the current source compliance and renders it unable to source current. * Too much difference between forward and reverse current, trying again: It means the voltage measured when the current direction forward and backward differs more than 10% thus the results might be invalid. Another measurement on the same point will be performed again to make sure. * Input voltage range of ADC exceeded. Please reduce current: Voltage measured is larger than maximum voltage readable by ADC. This might be because the current value is too large * Cannot check probe. Communication Error with Arduino: Wrong or no reply from Teensy board when sending check probe command. * Cannot Set Current. Communication Error with Arduino: Wrong or no reply from Teensy board when sending set current command. * Cannot perform measurement. Communication Error with Arduino: Wrong or no reply from Teensy board when performing measurement. * Cannot enable current. Communication Error with Arduino: Wrong or no reply from Teensy board when enabling current. * Cannot disable current. Communication Error with Arduino: Wrong or no reply from Teensy board when disabling current. * Cannot switch forward. Communication Error with Arduino: Wrong or no reply from Teensy board when switching current direction. * Cannot switch reverse. Communication Error with Arduino: Wrong or no reply from Teensy board when switching current direction.
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