[Discontinued] LCD GM328 Transistor Tester Diode Capacitance ESR Voltage Frequency Meter Square Wave Signal Generator

If the adjustable resistor is adjusted to the end point, only one resistance value can be measured 6. The highest resolution of resistance measurement is 0.01Ω. Can measure up to 50MΩ 7. Capacitor measurement range from 25pF-100mF, resolution 1pF 8. Simultaneously measure the equivalent series resistance (ESR) of a capacitor greater than 90nF, the resolution of the equivalent series resistance is up to 0.01Ω 9. For capacitors greater than 5000pF, the voltage drop rate after charging is also displayed. This value can reflect the quality factor (Q value) of the capacitor 10. A maximum of two diodes are measured at a time, showing their positive and negative poles, turn-on voltage 11. Light-emitting diodes are also displayed as graphic symbols of diodes, and their turn-on voltage is much higher than that of ordinary diodes 12. Zener diodes with reverse breakdown voltage lower than 4.5V can also be detected and displayed as double diode symbols. In addition, the turn-on voltage corresponding to a diode symbol is the volta Additional functions include frequency measurement, voltage measurement, square wave generator, PWM generator, infrared remote control decoding, infrared remote control coding, DS18B20 temperature sensor test, DHT11 temperature and humidity sensor test, color selection, debugging calibration, continuous testing, etc. The display unit uses a 160x128 pixel color display, the entire screen has 8x20 characters, a color depth of 16 bits, and the graphics are displayed as component symbols. Rotary coding switch control, one-button measurement, automatic shutdown features. Use the single-chip ATMEAG328P DIP-28. With IC Block. Can use a 9V stacked battery for power supply, or use power adapter for power supply, the current of the whole module is about 30mA, and the current after shutdown is about 20nA.