Automatic pin identification feature?

One thing you can do (correct me if I am wrong), is to connect the BP ground to the board’s ground, and the clip on the chip, then connect the 9V battery to the board to power it up.

The BP will show you the voltages on each pin. i.e. use it like a multi-channel multimeter. It should tell you which pin is the chip;s VCC.

Just to make sure - what would happen if the BP found a 9V rail? I don’t think it would happen in this scenario. The PIC doesn’t operate on 9V, right?
There must be a voltage regulator between the 9V and the PIC.

It would be best to use a real multimeter. You really should get one. ANENG makes some decent cheap ones.

Side comment - I was looking for a compact probe and found the ANENG A3009 - a talking pen multimeter. With my eyes, it’s handy. I just connect it to a resistor and it literally tells me the value. No more band decoding.

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Oh wow! That’s useful for anyone that only has two hands and one set of eyes! When I finally get a probe on a tiny part it always drifts just as I turn my head to read the display.

The boot up mode is into an “automatic” mode. It automatically figures out if it’s a resistor, or short, or a capacitor, or a voltage. It takes a second to do this.I didn’t realize that what AUTO mode was at first, I was changing the mode to resistance every time I turned it on, and was grumbling until I realized what AUTO mode did.

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Does the BP have over-voltage protection?

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Not the existing models. 0 to 5 volts only.

I checked mine. Auto mode only seems to measure DCV, shorts, and resistance. I have to switch it to capacitor and diode mode. I posted a short video of it in action,

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Oh fun. Does it also have a Mandarin voice?

Changes I’d make

  • selectable speak speed. It’s a bit slow, if it has mandarin I bets it’s faster.
  • just say the abbreviations. In my head I hear uF, pF, K, R, etc. I realize there’s overlaps with case, but it’s an extra step of thinking to go from the spoken version to uF.

Very cool tool for complicated probe situations.

I thought it has a Chinese voice option. But I can’t find out if it’s a different model, or an option. There aren’t many options available to the user. Light/dark background is the only one I know about.

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