What is 555 Timer ?
The 555 timer is an integrated circuit used in a variety of timers, delay, pulse Generation, and oscillator applications.
APPLICATIONS OF 555 TIMER.
# It can be used either as a pulse generator or an oscillator by operating it in different modes.
# It can drive both Transistor-Transistor Logic (TTL) due to its high output current and CMOS logic circuits.
# 555 timer can be operated in both ASTABLE and MONOSTABLE modes
#DC-DC converters and digital logic probes
#Waveform generators (ramp and square wave generator)
IC 555 Timers
10 uF Capacitor (16V)
2X – Resistor 1M
2X Resistor 470
5MM LED Light Bulb
Ceramic Disc Capacitor 0.1uF 104pF
# Threshold (6) and trigger (2) pin is shorted.
# Input voltage is 12V.
# A resistor of 1M between output (3) and threshold (6)/trigger (2).
# 1uf bipolar and 104pf ceramic capacitor between GND (1) and trigger (2).
# 10uf 16V bipolar capacitor between GND (1) and VCC (8).