DIY electronic component tester based on Arduino

The device automatically detects and automatically ranging from the component tester, which is capable of testing: PNP, NPN transistors, dual diodes, resistors, capacitors, and capacitors ESR, sensors. The accuracy of the instrument mainly depends on the resistors R1 to R6, so their tolerance should be 1%. Hardware components: Arduino nano r3 OLED, 128 x 64 Resistors 470K, 10K Through hole resistor 680Ω switch Circuit diagram: The device is made of an Arduino nano microcontroller containing basic functions, and the code is provided in a regular sketch, it can easily upload and modify it. Removing the LED resistor on the PIN13 from Arduino (this resistor is set in red in the picture), which is operated without any modification of the microcontroller, which is only used in stability using a 3.7 volt lithium battery. Code: Arduino nano r3 code (click to download) Librariers (click to download)

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