The Multimeter Kit from SparkFun Electronics provides you with everything you need to make your own multimeter. It is capable of measuring voltage (0-30VDC, 0.05 resolution) current (0-500mA, 1mA resolution) and resistance (0-100kΩ). The resistance mode also includes a continuity test: the buzzer will sound when the resistance probes are shorted together, this is one of the more handy tools of any multimeter.
Using the Multimeter Kit is very straightforward. To measure voltage connect your probes to the 'Voltage' and 'Common' pins, for current measurement the 'Current' and 'Common' pins. Resistance measurement uses the 'Res-1' and 'Res-2' pins. The decimal points are used in resistance measurement mode to indicate 10kΩ and 100kΩ ranges.
This kit now includes test probe cables! Batteries, however, are not included.
Please note:using the resistance measurement mode on live circuits is not recommended. Also, do not test current or voltage on devices that may be outside the measuring range (no negative voltages or currents)! The multimeter is very simple, and won't replace your Fluke meter, but it works perfectly for simple troubleshooting.
Be sure to read SparkFuns How to Use a Multimeter tutorial to find out how to properly use a meter (as if there was a standard way!).
- 1x Multimeter Kit PCB
- 1x ATMega328 programmed for Multimeter Kit
- 1x LM358 Op-Amp
- 1x 3.3V Voltage Regulator
- 1x Red 4-Digit 7-Segment Display
- 1x Buzzer 2.048 KHz
- 1x Battery Holder Pack AA x 4
- 1x 100uF Capacitor
- 1x 10uF Capacitor
- 2x 1.0kΩ Resistor
- 2x 10kΩ Resistor
- 1x 5.6kΩ Resistor
- 1x 1.2kΩ Resistor
- 1x 1.0Ω Resistor
- 1x SPDT Mini Power Switch
- 1x Push Button Switch
- 1x Banana to Test Probes Pair
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