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tohmm TOH Multimeter
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kimmoli
2014-04-09 , 07:09
Posts: 562 | Thanked: 2,744 times | Joined on Dec 2013 @ Espoo, Finland
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New TOH idea by bill_klpd, Multimeter TOH.
Seems that i started to think about this further.
First, sketching the UI:
Block diagram of the electronics part: (First draft)
First 3D sketch:
HW Specs:
Voltage measurement ranges 200mV, 2V, 20V, 200V DC (AC TBD)
Current measurement 200mA, 2A (TBD)
Resistance measurement 200, 2k, 200k, 20MEGohms (TBD)
Possibility to measure low-side current and high-side voltage at the same time --> Power (W) measurement.
Isolated from phone (floating) should be safe to keep USB charger connected while taking measurements.
Fused current measurement
SW Specs:
Continuous measurements with adjustable rate
Min/avg/max display
Single shot measurement when in hold mode
Beep when new min max value, or beep when short in Resistance mode.
Logging of readings with timestamps
Trigger events with alerts also possible TBD
"Plotter" view on separate page of latest results TBD
or simpler graph view in main page TBD
__________________
TOH ideas, concepts and creations since 2013
toholed
tohuart
toheink
Heebo
tohIRi
i2ctool
tohmm
LeTOH
FMTOH
Last edited by kimmoli; 2014-04-11 at
07:51
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