Tekko BDSimSimulatorProjects

৫৫৫ টাইমার astable — code ছাড়াই LED জ্বলা-নেভা555 Timer Astable Circuit

৫৫৫ চিপ capacitor কে R1+R2 দিয়ে চার্জ করে, R2 দিয়ে খালি করে, আর output নিজে নিজেই অন-অফ করে। Blink rate = 1.44 / ((R1 + 2 x R2) x C)। কোনো Arduino নেই — chip টা একাই কাজ করে, simulator এ আসল voltage হিসাব হয়।

The 555 charges the capacitor through R1 + R2 and empties it through R2, flipping its output between 1/3 and 2/3 of the supply. Blink rate = 1.44 / ((R1 + 2 x R2) x C). No Arduino — the chip does it alone, and the simulator solves the real voltages.

▶ ফ্রি চালিয়ে দেখো / Run it free Parts অর্ডার করো (WhatsApp)

সার্কিট ডায়াগ্রাম · Circuit diagram

555 Timer Astable Circuit circuit diagram — 555 timer IC (NE555), 9 V battery, Resistor 1000Ω, Resistor 10000Ω, Capacitor, Resistor 220Ω, LED (red), Jumper wires

যা যা লাগবে · Parts you need

তার লাগানো · Wiring

9 V battery +→555 timer IC (NE555) VCC
9 V battery -→555 timer IC (NE555) GND
9 V battery +→555 timer IC (NE555) RESET
9 V battery +→Resistor a
Resistor b→555 timer IC (NE555) DIS
555 timer IC (NE555) DIS→Resistor a
Resistor b→555 timer IC (NE555) THR
555 timer IC (NE555) THR→555 timer IC (NE555) TRIG
555 timer IC (NE555) THR→Capacitor +
Capacitor -→9 V battery -
555 timer IC (NE555) OUT→Resistor a
Resistor b→LED A
LED K→9 V battery -

Code (Arduino C++)

// No Arduino here! The 555 charges the capacitor through R1 + R2 and empties it
// through R2 only, flipping its OUT pin all by itself between 1/3 and 2/3 of the supply.
// Blink rate = 1.44 / ((R1 + 2 x R2) x C) = 1.44 / (21k x 10uF) = about 7 blinks per second.
// Try it in the simulator: change R2 to 47k and watch the blink slow down.
// R1 = 1k, R2 = 10k, C = 10 uF, LED through 220 ohm on pin 3 (OUT).

আরো project · More projects