Member Since: March 30, 2009

Country: United States

  • 3.5 mA - 35 mA

    I'm confused about this. 3.5 mA is the resolution, and the range is 0-35 mA? Or can it literally not measure 0 A?

    Is there a way to get resolution of about 1 mA and range of 0-1 A?

  • So this only has a resolution of about 10 mA? Is there anything that's more like 1 mA resolution, <1 A total?

  • It is apparently called "v36", while the new version is "v3.6a". Confusing.

  • Note that the colors are backwards from what the firmware tells you. You need to remove the plastic shroud around the connector and re-install it backwards for the colors to match. SparkFun should have this in bold ALL CAPS so people don't connect this incorrectly and break things.

  • BEWARE: The version that says "2/10/2010" on the bottom has the wire colors backwards from what the firmware tells you they are.

    You can pull the plastic shroud off and re-install it backwards to correct the error.

  • This happened to me and a projectile capacitor piece broke my skin.

  • As a result, electrolytic capacitors cannot be used to couple AC signals.

    This is wrong. Electrolytic capacitors are used to couple AC signals all the time. In a coupling application, the capacitor has 0 V across it, so there is no way it can become reverse-biased. Both sides of the capacitor are moving up and down in voltage at the same time, so the voltage across the capacitor is close to 0 V, even while the voltage of the capacitor relative to ground swings all over the place.

    Also, electrolytic capacitors can withstand small negative voltages without harm. You have to get above about 1 V reverse bias and leave it there for a while before the cap gets damaged.

    Of course if there's a DC bias in your circuit you need to make sure the electrolytic cap is in the right orientation, but they work fine with 0 V bias too, as long as the frequencies are in the range where there is minimal voltage across the cap.

  • it's identical to a wire, but with the same body as a resistor so it can be grabbed by a machine. there's no reason to include them in this kit meant for hobbyists. just use a wire.

  • yes, though ceramic or film caps that would be used in exact values in filters, not electrolytics

  • They can grab a single SOIC pin, but the plastic head is so big you can only probe one at a time, not 2 adjacent ones.

No public wish lists :(