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background image

Push the LED leads to fit it’s head

on panel and solder it. You can

keep the board on panel.

BOTTOM BOARD

Now let’s make the bottom board. Again start with

the resistors

. There are five of them (3x 10k, 2x 1M)

and they are pretty signed on the board. After that solder the

1N4007 diode

.

Be careful, diodes are

polarized!

Make sure that the marking ring on the diode body matches the marking on the circuit board.

Next solder the

7805 voltage regulator.

Bend

its legs as close to the body as possible, at a

right angle to make sure that it lies flat on the

circuit board.

7

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Содержание Little Nerd

Страница 1: ...ents It is good to have basic soldering skills and to be able to identify electronic components before starting this kit However if you have never soldered before check out this tutorial first We even included some of the best quality solder we have 1 found to help you solder everything faster and better 1 http www instructables com id How to solder 1 ...

Страница 2: ...g this kit prepare the following tools Soldering iron 15 20W Multi meter Flush cutters n2 hex screwdriver or allen key enclosed with kit Phillips screwdriver cross Wrench No 8 Protective eyewear We suggest that you work in a clean and a well lit and ventilated environment to avoid accidents or losing any of the small components Also briefly go through this guide and make sure that you understand a...

Страница 3: ...he PCB and insert seven transistors 2N3904 Watch out for orientation Flat side of transistors must match the outline drawn on the PCB You may also want to push the leads in the upper part closer to each other to insert the transistors closer to the PCB although they should not be flat with the PCB Next insert seven jacks and seven green LEDs Be careful to put the longer lead of LEDs into the plus ...

Страница 4: ... the first and the last jack connector you do not have to tighten them too much as you may damage the wooden panel Then turn around this unit facing it with PCB upwards Now push the LEDs leads to fit their heads on panel Make sure that everything is properly aligned Finally you are ready to solder all the components 4 ...

Страница 5: ...tep POTS BOARD Next you will build the pots board Firstly insert three resistors 15k and solder them You should be aware to let enough space for the 5 pin holes on the side you will be soldering a male pinheader there later Take the six potentiometers and put them on the board They have to sit right on the board and stand vertically You can start soldering only one leg of each pot then check the a...

Страница 6: ... it be careful though you don t want to touch the pin you are heating up Wait for it to cool and solder the rest of the pins Now it is time to insert RGB LED The longest lead should be in the third hole as well as the flat sides of the LED should match the printing See the picture to check the orientation Do not solder yet Before soldering LED you should mount the board to the wooden panel first T...

Страница 7: ...ive of them 3x 10k 2x 1M and they are pretty signed on the board After that solder the 1N4007 diode Be careful diodes are polarized Make sure that the marking ring on the diode body matches the marking on the circuit board Next solder the 7805 voltage regulator Bend its legs as close to the body as possible at a right angle to make sure that it lies flat on the circuit board 7 ...

Страница 8: ...is placed in the PTC rectangular and one 16MHz resonator the orange component with 3 leads None of these parts are polarized so you can insert them in any direction It is time for more capacitors Insert two 10μF electrolytic capacitors and solder them However be careful these are polarized There is a plus sign on the PCB that should match the longer lead of the capacitor actually the minus side is...

Страница 9: ...orget to place the ICs in the sockets 1x Atmega 1x 74HC595 There is a notch on each IC that should match with the sign on the sockets Check the picture Turn around the PCB and prepare the four following male pinheaders parts with your flush cutters 2 pin 3 pin 6 pin and 2x5 pin You can see their placement on the next picture Again you should be careful to solder the pinheaders straight 9 ...

Страница 10: ...and female and pair them together as shown on the picture The female headers goes on the bottom board Use two 11 mm spacers and four screws to get the boards together Now solder both female and male pinheaders Now prepare two female headers 5 pin 8 pin Press it on pots board male headers and then take the two units put them together use the last screw for mounting and solder the female headers on ...

Страница 11: ...hrough now just secure the jacks to the panel with the washers and the nuts keep in mind not to tighten the jack nuts too much as you may damage the panel install two jumpers and a screw with the small nut on the voltage regulator see the pictures 11 ...

Страница 12: ...d heat up them and add a bit of solder See the installed positions of jumpers see page 11 Check out the ICs orientation see page 9 RGB LED is not working how it should Is it oriented the right way see page 6 If you are having some more trouble the best thing is to take a nap Especially late at night If you are still in trouble you can send the detailed description of the problem with enclosed high...

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