Evil Mad Science Meggy Jr RGB Manual Download Page 5

Implied procedure

 for adding electronic components:

1.  Bend the leads of components as needed.

(Resistors need to be bent, most others parts do not.

        Optionally use lead forming tool shown in Step 1.)

2.  Insert each component into the circuit board, from

    the top, at its given location. Push it flush to the board.

(Resistors are 

unpolarized

; they can go in 

either way

.)

3.  On the back side, 

gently

 bend the leads out at 45° 

     to hold components in place while you solder.

4.  One at a time, from the back side, solder the leads of

      the component to the circuit board.

   

5.  Clip off extra leads on back side, flush to the board.

   (But not so flush that you’re clipping the board itself.)

Bend!

Insert!

Bend out!

Solder!

Clip!

[Meggy Jr RGB]

[5]

STEP 3: Adding first components... (and how to do it!)

Part 

#2

 is a 1 kilo-ohm resistor

(Color code: Brown-Black-Red-Gold)

Add two of these resistors to the circuit board,

  in locations 

R1

 and 

R2

.

   •  Your tip should be shiny (tinned).  If not, melt some fresh
          solder against it and wipe clean on a wet sponge.
   • Place the solder against the joint that you wish to connect.
   • Touch the iron to the solder and joint for about one second.
         Count it out: “one thousand one.” 
   • The solder should melt to the joint and leave a shiny
         wet-looking joint.  If not, let cool and try again.

Here!

Summary of Contents for Meggy Jr RGB

Page 1: ...Better Place One Evil Mad Scientist at a Time Evil Mad Scientist Laboratories Support http www evilmadscientist com forum Kit version 1 0 Manual v 1 01 An open source hardware software project designe...

Page 2: ...h is a type of AVR microcontroller You can also use an 88 or 328 8x8 RGB LED Matrix Display That s 192 LEDs all together The LED matrix is socketed so that you can pull it out if necessary Lo Fi speak...

Page 3: ...ncludes both the clippers and pliers shown here 3 Small fine point plier set Alkaline recommended 4 AAA batteries 3 You ll also need some solder Thin rosin core solder roughly 020 040 in diameter is t...

Page 4: ...2 J3 jumper Header jumper fits onto J3 after soldering Header jumper fits onto J3 after soldering 1 23 b0 b1 KeyCap Round 2 24 b2 b3 b4 b5 KeyCap Square 4 25 Rubber feet 1 16 thick by 1 4 diameter har...

Page 5: ...the circuit board 5 Clip off extra leads on back side flush to the board But not so flush that you re clipping the board itself Bend Insert Bend out Solder Clip Meggy Jr RGB 5 STEP 3 Adding first com...

Page 6: ...oard in locations RB0 through RB8 RB s Part 6 is a transistor You ll need nine in locations Q0 through Q8 They need a little prep before soldering Note the kit includes one extra transistor Transistor...

Page 7: ...or and trim their leads Flush The board so far Part 7 is a 10 pin right angle header This break away header splits into the parts that go into locations J2 and J3 1 Using small pliers grip the first t...

Page 8: ...er Add this component to location L1 in the upper left corner of the circuit board The speaker has a marking on the top to indicate its orientation There are also corresponding marks on the bottom sid...

Page 9: ...ctly to the pins of the chips so try to keep your soldering time to about one second per pin See also soldering tips in Step 3 To keep the chips in place while you solder slightly bend out the corner...

Page 10: ...holes of location XTL you can ignore the middle hole Orientation Either way Part 13 is a 1200 F capacitor After a little prep this component will be installed in location C3 Orientation matters the n...

Page 11: ...or goes to the side of the side marked on the circuit board Push the capacitor flush to the circuit board and solder it in place Part 14 is a 0 1 F ceramic capacitor Add five of these capacitors in lo...

Page 12: ...Like so Long lead first into the square hole Then push the LEDs flush to the board and solder them in place Part 16 is a 6 pin dual inline header An OPTIONAL PART that most users SHOULD NOT INSTALL I...

Page 13: ...it on a clean soft surface like a piece of paper This page will do nicely 2 With a bit of wiggle and firm even pressure slide one of the four socket strips onto the LED display pins as shown The 10 pi...

Page 14: ...motion and put back in place if necessary Almost there Part 19 is a small tactile button switch This is an OPTIONAL PART that is not required but might be nice If installed the Meggy Jr RGB will be re...

Page 15: ...pair of wire strippers handy you can cut the wires a bit shorter before attaching them See also step 16 From back side After soldering the wires it is recommended to cover the point where they enter t...

Page 16: ...ard close to the four screw hole locations Suggested locations are shown in circles Meggy Jr RGB is designed to be mounted and used inside a handle set case that protects the circuit board from your f...

Page 17: ...he handle set the carapace fits neatly over the LED display with cutouts for the speaker buttons and screw holes Drop the four nylon screws through the screw holes to help index the lower shell The lo...

Page 18: ...your Meggy Jr to make sure that it s working correctly 2 Trim very short the leads of components that stick up where the velcro will go and 3 Figure out exactly where you ll be routing the battery bo...

Page 19: ...y with Meggy Jr RGB in hardware software or elsewhere odds are that somebody knows how to help you out Your first stop should be the Evil Mad Scientist Laboratories forums http www evilmadscientist co...

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