Solarbotics BEAM Robotics Kit 2, Руководство пользователя

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Step 5: Power Capacitor and Initial Activation or, The "IT LIVES!!!" Stage
(insert "jump for joy" here)
9
24
EB C
3904
E B C
3904
Trim Pot
M2
R1
Wire
Clip
EB C
3906
Wire
M2
Clip
R2
M1 M1
E B C
3906
Cap
- +
-
+
1381
IR1
R2
Solar
Cell
S1 S2
IR2
R2
1381
2N
3906
2N
3906
2N
3904
2N
3904
224
CT-9
3 2 1
1381
224
1381
Installing the
Power Capacitor
Ah, 'tiz time to add the power storage capacitor.
Since you've already added the solarcell and all
the other necessary components, this step will
actually give your Photopopper the "Spark of
Life". Successfully completing this step (barring
any errors) should result in your robot starting
up, and since it has no off switch, it'll try to move
towards the light, regardless if you're trying to
tweak a trim pot, or add a touch-sensor. Ever try
to change the diaper on a baby that doesn't want
to be held down? Same sort of situation....
Adding the power capacitor to the PCB requires you to bend the leads of
the capacitor down right against the face of the capacitor. Just make sure
that you get the polarity correct before you bend. The side with the white
stripe is negative (-), and you will want to make sure that the bend looks
just like that in the above image. And just like any of the other compo-
nents, make sure it's held flush up against the PCB when you solder it in
place. When everything is finished and tested, you may take a razor and
strip the black plastic cover off. It looks like a shiny silver cylinder and adds
to the "cool" factor.
Checking the Polarity
Installing the Power Capacitor
You must make sure you get the capacitor polarity
correct, otherwise the Photopopper will have sluggish
performance at best (or total inactivity at worst). You
can see the "+" (positive) and the "-" (negative) marked
on this image of the PCB right under the capacitor. Just
make sure the lead closest to the stripe on the
capacitor goes to the "-" pad.