Wayne and Layne Tactile Metronome Скачать руководство пользователя страница 5

over. Make sure the displays are firm against the board, and check for alignment.If the displays are crooked,

you can reheat the junction and nudge the display. When you’re happy with the alignment, solder the

remaining legs of the displays. The pins might look too close together, but they’re definitely solderable.

Whew! It’s all downhill from here!

Step 5: Transistors

Next, insert and solder the transistors. They are labeled Q1, Q2 and Q3 on the board. The legs need to be

spread a little to fit into the board. The orientation matters, so make sure to follow the white drawing on the

board. Make sure the flat side of the black transistor package is facing the seven segment display.

Step 6: Ceramic Capacitor

Insert and solder the ceramic capacitor, labeled C2 on the PCB. It isn’t polarized, so it can go in either way.

Build Instructions, Printable Version | Wayne and...

http://www.wayneandlayne.com/projects/metron...

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05/11/2011 04:43 PM

Содержание Tactile Metronome

Страница 1: ...eo Game Shield Recent Articles Efficient printing of USPS shipping labels Tic Tac Toe game contributed to Video Game Shield Open Source Hardware Logo in Kicad BP20422 Breakout Board Fixing Linux firmw...

Страница 2: ...displays This will also give you a chance to practice your soldering on some easier parts with pins that are more spread apart before getting to the trickier displays Some parts are polarized and hav...

Страница 3: ...iron like a paintbrush Solder all four legs of each button Step 3 Electrolytic Capacitor Turn the board back over and put the electrolytic capacitor C1 in the proper location inside a circular marking...

Страница 4: ...solder joints Step 4 Seven Segment Displays Now that you ve gotten warmed up and practiced some soldering it s time to tackle the seven segment displays Place the seven segments in the board taking c...

Страница 5: ...Next insert and solder the transistors They are labeled Q1 Q2 and Q3 on the board The legs need to be spread a little to fit into the board The orientation matters so make sure to follow the white dra...

Страница 6: ...because it can be difficult to insert a chip into a crooked socket Like the seven segment displays you might want to solder only one pin at first and then check the alignment If the socket is crooked...

Страница 7: ...but please ignore it It will be removed in the next board revision Step 10 Piezo Buzzer Place the piezo SP1 into the board You ll notice it has two little pegs underneath that keep the case off the b...

Страница 8: ...emely high resistance If it says there s a low resistance or a short review your soldering again and look for the short In the picture below the multimeter is measuring resistance and the value 0 L me...

Страница 9: ...the thick legs can take a lot of heat Clip the legs Step 14 Insert Processor Chip Chips in DIP form usually have legs that are bent out too far to fit easily into sockets One way to slightly but unifo...

Страница 10: ...kits come with easy to follow illustrated instructions and explanations of how the kit works All the schematics PCB artwork and source code are provided under open licenses Our debut kit the Tactile...

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