Evil Mad Science Meggy Jr RGB Manual Download Page 17

[Meggy Jr RGB]

[17]

STEP 15: Putting Meggy Jr in the Handle Set

Parts 

#26 

&

 27

 are nylon screws and acorn nuts

These parts  are used  to attach  the  upper  and  lower shell  of a 

handle set.  

Use no tools 

with these!  Hand tighten, only as much 

as needed, by turning the acorn nut.  Over-tightening could easily 

crack the plastic of the handle set.

Mounting the handle set

   The top shell of the 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 lower shell (the 

plastron

) fits on the bottom side with cutouts 

for the battery box, the battery box wires, as well as the optional ISP 

connector and power jack.   Use the nylon screws from the top side 

to help guide the lower shell into place, and secure it in place -- 

gently-- with the nylon acorn nuts.

“Basic handles” shown; other 

types mount the same way.

Screw hole locations

(arrows)

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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