The Basic Delay Timer Circuits using IC-555 base.
Minute Timer with alarm by IC555
This circuit uses a 555 IC timer number.This small, compact and portable. For the snooze alarm when some 10 or 15 minutes.It makes clear the brain is ready to continue to work.
When the switch S1 to enter a power supply circuit, it will be ready to go.The circuit includes a circuit IC1 Mono Stable for the delay.The switches S3-S6 as election time.If selected by S3, 5 minute timer.S4 is located at 10 minutes.S5 timer for 15 minutes and S6 is scheduled for 30 minutes.If you want to set for 10 minutes, switch S4 is followed by a switch S2 to start all the time.Work is that when switch S4 will allow the current flowing through R4 will flow through the switch S4 to C2.Acting with a delay charge and discharge completely.Then send a signal to Pin 7 and 6 of IC1 resulted BZ1 beeps Buzzer out.
The time value is determined by the value R2, R3, R4, R5 and C2.If you want to set up a long time, it increases the R and C, but would spend less if it reduced the R and C.
Basic Timer Control with NE555
As friends many take an interest the circuit about IC 555 which be integrated highly popular that circuit. I then lead the circuit sets the time be Basic Timer Control with NE555 come to present again. By it basically the base of the circuit sets the time work instruction easily initial. Press S1 for a already moment liberate for initial setting the time (Timing Cycle) Relay encouraged work (Pulled in). Until anniversary completed work. The R1 and C1 control length of while delaied keep. If use the value C1 very the time long ago go up This circuit meets to wasp Logic pulse with sir. Request have fun the circuit sets the time this easily please sir.
Egg timer circuit by IC-555
This is Easy and Mini Timer Circuit ( Egg Timer) by IC 555.
Alarm by Buzzer.
This be mini timer circuit that interesting. I calls that Circuit Egg Timer. By use integrated highly popular circuit number LM555 or NE555 or the number replaces. By VR1 use control the time of the circuit sets the time. When expire buzzer as a result make a noise warn hear. For S1 use for choose that Time or Stand. The detail is other request friends see in the circuit better sir.
Timer Plus Relay by IC 555
This be Timer Plus Relay Circuit by IC 555. When see the circuit also a little equipment. By the value R1 and C1 perform set the time give Relay work 11 long ago second. When we begin to encourage the circuit by switch press 2 pin with a leg Ground note: Relay 6V 500ohm. Use current 12mA. The detail is other , see in the circuit adds.
Simple scheduling tool
IC 555 to IC Timer (scheduling IC) or IC timer.Which may be can be considered quite unique features.To use the time to bring the device resistance.
For the period that desire.
This circuit 555 to the IC number on the circuit Mono Stable. Multi Vibrator. or Delay circuit with operating environment that provides a second output level be The voltage is low (logic “0″) and high-level voltage (logic “1″). When you click the switch S1 pin 2 of the IC will be shot down ground. The motive for the IC1 with low voltage (logic “0″). Resulting in the output pin 3 of IC voltage levels at higher or equivalent supply. it making light LED1. Experience in the scheduling itself. And in setting up or slow down time depends on the R2, C1.And VR1 to adjust the scheduling easier.