TomboT www.tombot.net

nemesis · Guest

hello! ia m extremely new to electronics and botting! so i have quite a n00b-like question: http://www.tombot.net/beam/pics/circuits/2motorwalker.jpg
what is the yellow piece with '224' written on it? and what does 224 mean?

Tombot! · Guest

Hi... sorry for the delay in replying, I have been away for a week.

The component you are referring to is a capacitor, the 224 is the code to work out its value. In this case it is a 22micro farad capacitor.

Hope that helps!

Tom

akoe · Posted: Sat Sep 22, 2007 2:24 pm Post subject: beam bicore head (2 motor walker)

i want to ask about the beam bicore walker component. Can 74AC240
replaced by 74HC240???? And How is the voltage of 22uF Capacitor??? Is the 2.7 M resistor is true??

Please reply the answer to my e-mail :

tf13306071@students.tf.itb.ac.id

Question

TomboT · Co Admin Joined: 16 Oct 2005 Posts: 11

Hi akoe,

The voltage of the 22uF cap needs to be rated above the supply voltage... in thsi case 5V is fine.

Yes you can replace the chip as you mention.

The 2.7M resistor is correct.

Hope this helps, I will e-mail you the response also.

Tom
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