My New brake lights

271

03:12:32

Bottom is brakes and the top is turn signal

published 10 years ago

Lucan01

10 years ago

Is there a place where we can use a spdt to turn on the signal? Loving the design!

Lucan01

10 years ago

Also I would like to control the timing, how can I do that? :)

SkeLe

10 years ago

Wtf why this circuit (that is also on short circuit) for a blinking led?...

yra

10 years ago

Lucan01 there are several apps that calc the resistors for the 555 timer too change time and flash rates try the electrodroid companion app to ec. Ec will not always show things like real, i grabbed a 555, few resistors, caps and a breadboard to see it for my self.

yra

10 years ago

The easy way to change the setting on the fly use a variable resistor

SkeLe

10 years ago

So you tested it on the bb? Does it burn out?

Lucan01

10 years ago

I am just curious what you are using the op amp for.

yra

10 years ago

Some opamps can be used to boost current for small signal device. In this design I use it to drop (buffer) the current on the 555 & keep the frequency stable. Thanks for asking.

yra

10 years ago

555 are very stable device but can very with heat and voltage, using a buffer you can control the current which controls the heat & variance of voltage due to heat.

SkeLe

10 years ago

The 555 support a max output current of 200mA an opamp usually only 50mA (unless you use an high power version). Why not using a transistor?

yra

10 years ago

The transistors are handling the heavy load if you follow the schematic design, first power than 555 than opamp than small signal pnp than large signal npn.

yra

10 years ago

The reality of the circuit in a real car the turn signal and a resistor will be all that is used for powering operations. when working on a breadboard or building from circuit board up other things have to be considered.

yra

10 years ago

Thanks for the good questions.

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