www.totemmaker.net
Totem MiniLab
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Fig. 11 Frequency measurement module
Experiment
1. First find a source digital signal with the frequency that you want to measure. As an
example, you could use a “PlayMelody” sketch from Arduino webpage, which plays a
tone on one of digital outputs.
2. Code the sketch to TotemDuino.
3. Connect the digital signal (in the “PlayMelody” example,
D9
is used) with the
frequency meter input
DIG1
pin.
4. Observe that frequency meter measured a frequency (in the “PlayMelody” case it
should be close to 524 Hz).
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Fig. 12 Measuring 524 Hz signal with LabBoard
Measuring current
TotemDuino has a current measuring module, which allows to measure current up to 800
mAmps. Rightmost display is used for showing current measurement result, when the
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