Light Chaser
Beginner Soldering Kit
M
The 4-Soldering Light Chaser Kit is an introductory electronic kit
GND
designed to help kids or electronic, enthusiasts, and novices learn
Product Introduction
about electronic basics like soldering and simple circuits. Mr. NEON
is designed to look like a three-leg monster whose eyes or tentacles
glow and dim depending on surrounding light. The stronger the light
is, the faster Mr. NEON moves. There is no programming involved,
and all of the soldering is beginner-friendly, making it perfect for
budding electronic enthusiasts. Mr. NEON is also able to change
“faces” through expression stickers.
Coin Cell Battery
Vibration Motor
Photodiode
Transistor
Resistor
Compoents Introduction
These working principles are illustrated in the diagram below.
Pool
Thick Pipe
Strobe A
Water Wheel
Strobe B
Thin Pipe
1. The water in the pool flows downward, first through the thick pipe,
then the thin pipe.
2. Strobe A, located in the thick pipe, is controlled by the water flow
in the thin pipe; the thin pipe is controlled by strobe B.
3. If there is no water flow in the thin pipe, then the strobe located in
the thick pipe will close. The greater the water flow in the thin pipe,
the wider strobe A opens up. Since strobe A controls water flow
through the thick pipe, water flow will increase when strobe A
opens. This is the function of the transistor.
4. The water flow in the thick pipe determines the speed of the water
wheel – increased water flow will make the waterwheel spin faster.
The pool represents the coin cell battery; the waterwheel represents
the vibration motor; strobe B represents the photodiode. Stronger
surrounding light will cause the vibration motor to run faster.
How to Solder
Step1
Bend the legs
downward and insert
them into the board.
Step2
Flip the board over. Place
the soldering iron’s ”sweet
spot ” (shown in diagram)
and make sure it touches
both the leg and the metal
ring. Hold for 1 to 2
seconds.
Step3
Pull the soldering wire
away first, then the
soldering iron.
Step4
Your solder joints
should look like this: a
tiny volcano.
Step5
Clip off all excess wire
so that only the tiny
solder joints remain.
Step6
Resistance soldering
completed.
WARNING: Please wear safety goggles.
This kit requires soldering and clipping leads.
Making the head
20K 20K
20K 20K
20K Ohm Resistor
Used for limiting current or dividing voltage, a resistor is a common
component within circuits. Just solder the resistors to its proper
position on the board (shown in the diagram), regardless of the
electrode being positive or negative.
1. Solder the resistors
After soldering, cut off the
remaining length of the wire.
Components Soldering Sequence
4-Soldering Light
Chaser Kit V1
4-Soldering Light
Chaser Kit V1
on off
2. Solder the switch
After soldering, cut off the
remaining length of the wire.
3. Solder the transistors
After soldering, cut off the
remaining length of the wire.
The switch is for power ON and OFF.
Switch
Transistor
The transistor is a powerful component. Notice the silkscreen (white
print on the board) resembles a half circle. Make sure that place the
transistors in the holes on the basis of the silkscreen. The round side
on the board should match the round side of the transistor.
4. Solder the photodiodes
4-Soldering Light
Chaser Kit V1
After soldering, cut off the
remaining length of the wire.
Photodiode(S8050)
The photodiode is a component that changes a light signal into a
current or voltage signal. It is highly sensitive to light intensity, and
can be used to change a circuit’s current. Insert the photodiodes
into the front of the board. Each photodiode has a short leg and a
long leg. The long leg goes into the hole labeled with a long line.
Place the photodiode into the front side of the board. Then,
bend the photodiode into a 90 degree angle (see picture),
making sure to leave around 25mm at the base of the diode.
Flip the board over and solder the joints.
5. Solder the
4-Soldering Light
Chaser Kit V1
4-Soldering Light
Chaser Kit V1
Battery Clip
+
6. Solder the
vibration motors
After soldering, cut off
the remaining length of
the wire.
+
Battery Clip
The battery clip is for holding the coin cell battery. Set the battery
clip on the white footprint of the upper side of the board. Solder the
two clip legs from the opposite side while keeping the part flat.
Vibration Motor
The vibration motor provides the power source that enables Mr. NEON
to happily hum along. Solder the motors into the front of the board.
The red leg goes into the hole labeled “+”.
Making the Base
Step1
Take out the plastic paper
and the sticker with a
printed triangle.
Mr. Neon should at this point look like the
above picture.
Step2
Unpeel the triangle
sticker and place it atop
the plastic paper.
Step3
Cut the plastic paper with
a scissor along the edge
of the triangle.
Step4
Trim the sharp corners
of the triangle.
Step5
Bend three small triangles
into 90 degrees along
dotted lines.
Step6
Place the adhesive
against the body as
shown.
Step8
Stick the two vibration
motors against Mr.
NEON’s legs.
Step7
Put the head on the body.
Step9
Place the plastic tubing over
the photodiodes; this
prevents electric interference
with the exposed probe.
Done
You've assembled Mr.
Neon! You can add
stickers to Mr. Neon to
give him appearance
and flair that make him
stand out from the rest.
A step-by-step video walkthrough showing the assembly of Mr.
Neon is available online — to view it,
please go to the DFRobot Mr. Neon product page.
Shipping List
Light Chaser PCB Board
Battery
Battery Clip
On/Off Switch
Transistor
Vibration Motor
Photodiode
20K Ohm Resistor
Plastic paper
Plastic Tubing
Adhesive Sticker
Base Sticker
Face Sticker
x1
x1
x1
x1
x2
x2
x2
x4
x1
x1
x1
x1
x1
dfrobotdfrobot
www.DFRobot.com
Made in China
Designed by
dfrobotcn
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