Sparkfun Electronics Simon SMD Betriebsanleitung
Page 1
Simon SMD
Kit Information & Instructions
This is a kit of loose components that go along with the SMD Soldering Lecture. This is
considered an intermediate kit for people who have soldered through-hole components
before and wish to learn how to solder surface mount components. This kit comes with
a preprogrammed ATmega328. All parts are listed below.
Kit includes:
Additional Tools Needed:
•NCP1402 IC
•10k Ohm Resistor
•47μF Capacitor
•10μF Capacitor
•0.1μF Capacitor (qty: 2)
•MBRA140 Diode
•22μH Inductor
•330 Ohm Resistors (qty: 4)
•Pre-programmed ATmega328 TQFP IC
•Tweezers
•Soldering Iron
•Solder
•Solder Wick
•Flux
•Eye Protection
•Buzzer
•LEDs (qty: 4)
•Battery Clips (qty: 2)
•Switches (qty: 2)
•Screws (qty: 4)
•Standoffs (qty: 4)
•Bezel Frame
•Button Pad
•Battery
Page 2 Page 3
Don’t: Use the very tip of the iron.
Do: Use the side of the tip of the iron, “The Sweet Spot.”
Do: Touch the iron to the component leg and metal SMD pad at
the same time.
Parts List
Soldering Tips
SMD Soldering • Level 1
SMD Soldering • Level 2
PTH Soldering
Final Assembly
Additional Info
Troubleshooting LEDs
Troubleshooting Jumpers
Notes
Learning More
Section
1
3
4
16
22
34
36
38
40
42
44
Page
Do: While continuing to hold the iron in contact with the leg
and metal pad, feed solder into the joint.
Do: Use a sponge to clean your iron whenever black oxidization
builds up on the tip.
Don’t: Glob the solder straight onto the iron and try to apply the
solder with the iron.
SMD SOLDERING TIPSTABLE OF CONTENTS
Page 4 Page 5
QUICKSTART • LEVEL-1 SMD SOLDERING [ STEPS 1 T0 8 ]
1
Locate the Buzzer.
Locate the Buzzer position on the board.
Steps highlighted in yellow represent a polarized component.
Pay special attention to the component’s markings indicating how
to place it on the board.
3
Touch iron’s sweet spot to the start-pad for 2-3 seconds.
4
Pre-tin the start-pad by feeding solder into the joint.
2
BOTTOM OF BOARD
Page 6 Page 7
5
6
First, pull solder away.
Second, remove the iron.
7
Solder should cover the entire pad and look like this - a tiny pillow.
8
Using your tweezers, position the buzzer slightly away from the pad.
Page 8 Page 9
9
Reheat Start-Pad
Add solder to second pad.
Slide Into Place
Remove Iron
For step 9, understand that alignment of the buzzer is very important.
You want to ensure the buzzer is centered and laying flat against the
board. See possible errors to the right (Page 9).
I
II
III
IV
To fix these potential problems, reheat the solder while moving the buzzer
into place with your tweezers.
BAD BAD GOOD
Page 10 Page 11
Now that you’ve successfully soldered down your
first SMD component, use the same method to
place and solder the following components.
10uF Capacitor
MBRA140 Diode
22uH Inductor
10
12
11
10uF Capacitor The white end of the capacitor should point
towards the rounded end on the PCB’s silkscreen.
MBRA140 Diode Before soldering, double-check that the white
line on the diode matches the line on the PCB’s silkscreen. The
white line is similar to the line on the 10uF capacitor in step 10.
22uH Inductor Make sure the inductor remains inside it’s
white outline after you’ve soldered both legs.
BOTTOM OF BOARD
CONTINUE WITH THE BOTTOM OF THE BOARD [ STEPS 10 T0 16 ]
Remember, components highlighted yellow are polarized.
Page 12 Page 13
0.1uF Capacitors
330 Resistors
14
13
330 Resistors These resistors are not polarized. However,
they do have a value marking on the top side. Make sure the
marking is facing up.
0.1uF Capacitors Ceramic capacitors like these are
not polarized. They don’t have a value marking. This means
they can be soldered into place in any rotation.
BOTTOM OF BOARD
Page 14 Page 15
10K Resistor
16
10K Resistor Just like the 330 resistors, these are not
polarized. Make sure the writing on the part (‘103’) is facing up.
47uF Capacitor The white line on the capacitor should point
towards the rounded end on the PCB’s silkscreen.
BOTTOM OF BOARD
Remember, components highlighted yellow are polarized.
47uF Capacitor
15
Page 16 Page 17
QUICKSTART • LEVEL-2 SMD SOLDERING [ STEPS 17 T0 21 ]
Now that you’ve successfully soldered down all Level-1 components, you
are ready to move on to Level-2. The next set of components have 5 or more
pads each, and the pad size is smaller. Although this is more challenging,
you will use the same methods as before.
17
Locate the NCP1402. Be sure to match up the legs with the pads on
the PCB. This component is polarized.
Locate the NCP1402 position on the board.
18
Remember, components highlighted yellow are polarized.
19
Touch iron’s sweet spot to the start-pad for 2-3 seconds.
20
Pre-tin the start-pad by feeding solder into the joint.
Page 18 Page 19
21
Reheat Start-Pad
Slide Into Place
Remove Iron
For step 21, use the same 3-step process you learned earlier (Step 8,
Page 8). A common error for these smaller types of components is a
jumper. To help avoid these, try not to use too much solder.
Understand the alignment of the component is important, and should
be oriented to look like the picture.
I
II
III
BAD GOOD
Learn how to fix a jumper on Page 40 in the Troubleshooting section.
Add solder to the remaining 4 pads.
IV
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