555timer- What did I do wrong?

I tried to modify a Doctronics timer to control a small toy motor. I changed some of the resistors and capacitor. I want the motor to turn on for 2-3 seconds and off for about 1 minute. Hooked it up with the LED lights included with the kit before hooking up motor and ran with 9 V and 4.5 V , the lights do not light up. What did I do wrong? Attached modified schematic is attached.

Hi,
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Why do you have 1.8 kΩ resistor at the output? Say each LED drops 2 V, there will be only 1.67 mA driving the LED. I'm not sure whether that is enough though.

I don't think this is gonna work at 4.5 V.

Also, get a 100 nF capacitor from pin 5 to ground.

As for a motor, is a 555 timer capable of running it? How much current does your motor draw?

bananasiong said:

As for a motor, is a 555 timer capable of running it? How much current does your motor draw?

Click to expand...

The output of a 555 timer is only 200mA.

Pin 3 (Output): (Pins 3 and 7 are "in phase.") Goes HIGH (about 2v less than rail) and LOW (about 0.5v less than 0v) and will deliver up to 200mA.

Click to expand...

Pin Configuration of the 555 Timer

At 6 V, the current draw is 0.35Amp, and 4.5V it is 0.27 Amp. It does not sound like the 555 will drive the motor. What is my other option?

Use a transistor to drive the motor. Many general purpose ones will work