Relay circuit for toy

If you are that unfamiliar with electronics you won't even be able to do the kind of soldering needed.

Stop trying to modify it. Just leave that thing alone, buy some kits from solarbotics.com and learn something from them first.

"Randy Day" schreef in bericht news: snipped-for-privacy@aioe.org...

Well, maybe it'll fit, especially when using SMD-components. Though I suppose a course on soldering electronic components especially (again) SMD ones has to be added :)

petrus bitbyter

"Randy Day" schreef in bericht news: snipped-for-privacy@aioe.org...

At the time I also had this feeling. Calling "use a PIC" seemed to be the solution for every problem. Of course on it's own that yell did not solve a thing. Providing a usefull sourcecode on the other hand means you to have to design about 80% or more of the solution. The problem as you know it that is, as too often the OP does provide enough information to make a relevant design specification. That's why I only gave some general hints in this case and did not start to draw or calculete something.

petrus bitbyter

ave a toy bug that when turned on it vibrates and walkes around

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Rich, Thank you for the post. The timer can be bigger than the unit. I'm hiding it under objects for the cat to find. I want it to buzz and then cut off, then buzz again. It doesn't have to walk around. If I bought a 555, where do I solder the exsisting wires on the unit to get it to cut on and off at roughly 30 seconds? Thanks, Erik

toy bug that when turned on it vibrates and walkes around

This *might* work, assuming that the motor is a really low current device. Using an intermediate transistor switch driven by pin 3 would probably be better.

.----------o---o-----------------------------. | | | | | | | | | | | .------o-----------o .-. .---o---o---. | | | | | | 4 6 | | | | 22K | | | | | .--o--. | '-' | | - | | | | | | ^ |MOTOR| | o------o 7 | | | | | + | | | | '--o--' --- .-. | | | | - | | | 3 o------o------' | - 470K | | | | 1N4148 | '-' | | | | | | | o------o 6 | | o------o 2 | | | | 1 5 | | --- '--o----o---' | --- | | | | 100u | | | | | --- | | | --- 0.01u | | | | | | | | | | | | | '---------o----o-----------------------------' (created by AACircuit v1.28.6 beta 04/19/05