As it will produce short across the LED pair when the voltage is only in one direction. Sketch of transistor tester project from Karl-Heinz Kbbeler, so it's much simpler to study, modify, verify and upload to an Arduino. The transistor will be in OK condition when only 1 LED flashes. ArduTester V1.13: The Arduino UNO Transistor Tester. IR receiver - 1 39 Ohm resistor - 2 IR LED - 1 NPN transistor - 1 CR2032.
Arduino transistor tester tv#
Test with program in #include #include #include #include #include "stdint.h" //JLG #include #include #include #include #include #define MAIN_C #include "Makefile.h" //JLG #include "Transistortester.h" #include "config.h" #include "part_defs.h" #include "lcd_routines.h" #include "lcd_defines.h" #include "wait1000ms.h" #include "autoconf.h" #include "tt_function.h" #include "tt_resistor.h" #include "bitmaps.h" #include "font.h" #include "24x32update_bitmaps.h" /* defines global variables in RAM and EEprom from file tt_globals.h */ /* removed ifdef MAIN_C because always defined */ #define COMMON #ifdef AUTO_CAL const int8_t RefDiff EEMEM = REF_R_KORR // correction of internal Reference Voltage // const uint16_t cap_null EEMEM = C_NULL // Zero offset of capacity measurement const int16_t ref_offset EEMEM = REF_C_KORR // default correction of internal reference voltage for capacity measurement // the zero offset for capacity measurement for all pin combinations // LoPin:HiPin 2:1 3:1 1:2 marker 3:2 1:3 2:3 const uint8_t c_zero_tab EEMEM = #endif // WITH_HARDWARE_SERIAL #if POWER_OFF+0 > 1 empty_count = 0 mess_count = 0 #endif ADCconfig. This device is for testing Transistors, MOSFET, Diodes,Resistors Capacitors, Inductors, and more - GitHub - kr4fty/ArduProj. When transistor is put on the test lead both the LEDs blinks. This test blocks the IR emitter, which will prevent any control of the TV if.
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