Zona Rimba

Zona Rimba Kursus Elektronik Gratis

08/03/2026

Smart Water Level Indicator Circuit

27/02/2026

pembuatan indikator suhu menggunakan thermistor NTC, LM3914, dan LED bargraph. Thermistor berfungsi sebagai sensor suhu, sedangkan LM3914 dan LED bargraph digunakan sebagai indikator yang akan menyala sesuai dengan perubahan suhu yang terdeteksi oleh thermistor.

19/01/2026

This Solar Cell Decides When the Street Light Turns ON

This diagram shows a common setup for larger commercial or industrial solar projects. Instead of one central inverter fo...
18/10/2025

This diagram shows a common setup for larger commercial or industrial solar projects. Instead of one central inverter for the entire array, this system uses multiple string inverters, each dedicated to a specific section of solar panels.

18/10/2025

How zener diode work?

Fluke multimeter symbols and functions
16/10/2025

Fluke multimeter symbols and functions

Skema power amplifier OCL 150 watt familiar
26/03/2025

Skema power amplifier OCL 150 watt familiar

Rangkaian mixer 4 chanel input dengan ic LM741. Catu daya simetris antara 5 sampai 12v dc, untuk kontrol sinyal input gu...
23/03/2025

Rangkaian mixer 4 chanel input dengan ic LM741. Catu daya simetris antara 5 sampai 12v dc, untuk kontrol sinyal input gunakan potensiometer 100K.

In English and Indonesia-Circuit Connections of Monostable Multivibrator with 555 Timer-Rangkaian Multivibrator Monostab...
11/03/2025

In English and Indonesia
-Circuit Connections of Monostable Multivibrator with 555 Timer
-Rangkaian Multivibrator Monostabil dengan ic timer 555

Pin 1 is connected to the ground and the trigger input is given to pin 2. In the inactive condition of o/p, this i/p is kept at +VCC. To get a transition of the output from a stable state to an unstable state, a negative going pulse of narrow width and an amplitude greater than +2/3 VCC is applied to pin 2. The o/p is taken from pin 3 and pin 4 is connected to +VCC to avoid accidental reset. Pin 5 is connected to ground via a 0.01uF capacitor to avoid noise. Pin 6 and pin 7 are shorted, and a resistor is connected between pins 6 and 8. A discharge capacitor is connected to pin 7 while pin 8 is connected to VCC.

Pin 1 dihubungkan ke ground dan sinyal input pemicu (trigger) diberikan ke pin 2. Ketika output (o/p) dalam keadaan tidak aktif, input (i/p) ini dipertahankan pada tegangan +VCC. Untuk mendapatkan transisi output dari keadaan stabil ke keadaan tidak stabil, pulsa negatif dengan lebar yang sempit dan amplitudo lebih besar dari +2/3 VCC diberikan ke pin 2. Output diambil dari pin 3 dan pin 4 dihubungkan ke +VCC untuk menghindari reset yang tidak disengaja. Pin 5 dihubungkan ke ground melalui kapasitor 0,01 uF untuk menghindari gangguan (noise). Pin 6 dan pin 7 dihubung singkat, dan resistor dihubungkan antara pin 6 dan pin 8. Kapasitor pelepas (discharge) dihubungkan ke pin 7, sedangkan pin 8 dihubungkan ke VCC.

Why don’t birds get electrocuted on power lines?
10/03/2025

Why don’t birds get electrocuted on power lines?

This infrared detector can be used to detect the presence of modulated infrared signals in its vicinity from any electro...
13/02/2025

This infrared detector can be used to detect the presence of modulated infrared signals in its vicinity from any electronic source, for instance, an IR handheld remote controller. It can also be used for testing infrared burglar alarm systems. This is not an infrared motion detector!

The IR detector circuit in principle, converts the IR signal pulse trains into noticeable aural notes. S1 is used to switch on/off mains power and LED1 indicates power-on. Resistor R4 and zener diode ZD2 form a low-current voltage stabiliser for providing steady 5.1V DC to the small signal preamplifier circuit. IR LED1 is the main sensing element.

The infrared signal detected by IR LED1 is amplified by npn transistors T1 and T2. The amplified signal is fed to the melody generator via resistor R5. The output of the melody generator UM66 is fed to LM386 low-power audio amplifier (IC2) via variable resistor VR1, which works as the volume control. The loudspeaker sounds to indicate the presence of IR signal near the circuit.

The infrared detector circuit can be easily wired on a small veroboard or any general-purpose printed circuit board.
Pin configurations of IC LM386, transistor BC547 and melody generator UM66.

Kapasitor film tegangan tinggi
11/02/2025

Kapasitor film tegangan tinggi

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