FED-202 is a Audio Spectrum Indicator DIY Kit. It can display in Red/Green/Blue according to the input audio signal from microphone.It can be used to display the intensity of audio.The number of LED displayed changes according to the intensity of the audio.
1>.78pcs highlight LED
2>.Perfect simple circuit
4>.DIY hand soldering
1>.Product Name:FED-202 Audio Spectrum Indicator DIY Kit
3>.Work Voltage:DC 3V-12V
5>.Power Type:3.5mm Power Socket
6>.Work Mode:Switch Control
1>.User needs to prepare the welding tool at first.
2>.Please be patient until the installation is complete.
3>.The package is DIY kit.It need finish install by user.
4>.The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.
5>.Pay attention to the positive and negative of the components.
6>.Strictly prohibit short circuit.
7>.User must install the LED according to the specified rules.Otherwise some LED will not light.
8>.Install complex components preferentially.
9>.Make sure all components are in right direction and right place.
10>.Check that all of the LED can be illuminated.
11>.It is strongly recommended to read the installation manual before starting installation!!!
12>.Please wear anti-static gloves or anti-static wristbands when installing electronic components.
5.Installation Steps (Please be patient):
Step 1: Install 1pcs DO-35 1N4148 Diode at D0.The black mark is negative pole.
Step 2: Install 2pcs 1Kohm Metal Film Resistor at R1,R2.
Step 3: Install 2pcs 3Kohm Metal Film Resistor at R4,R5.
Step 4: Install 3pcs 10Kohm Metal Film Resistor at R6-R8.
Step 5: Install 2pcs 100Kohm Metal Film Resistor at R9,R10.
Step 6: Install 1pcs 1Mohm Metal Film Resistor at R11.
Step 7: Install 5pcs 0.1uF 104 Ceramic Capacitor at C3-C7.
Step 8: Install 1pcs DIP-18 IC Socket at U1,U2.There is a mark on one end of the IC Socket and there is a mark on PCB where the IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC Socket.
Step 9: Install 1pcs DC3.5*1.3mm Power Supply Socket at CN0.
Step 10: Fix the power socket with the extra pins of the resistor.
Step 11: Install 1pcs 5Pin 3.5mm Audio Socket at JK1
Step 12: Install 2pcs TO-92 S8050 Transistor at Q1,Q2.
Step 13: Install 2pcs 100uF Electrolytic Capacitor at C8,C9.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.The longer pin is inserted into the rectangular pad.
Step 14: Install 2pcs 2.2uF Electrolytic Capacitor at C1,C2.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.The longer pin is inserted into the rectangular pad.
Step 15: Install 1pcs 9*7mm Microphone at MIC1.The marked pin is negative pole.
Step 16: Install 5pcs 2.54mm Female Socket 1*6Pin at CN1-CN4,CN*.
Step 17: Install 1pcs DIP-18 LM3914 Driver IC at U1,U2.There is a mark on one end of the IC and there is a mark on PCB where the IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.
Step 18: Install 1pcs SS12D07 Toggle Switch at SW1.
Step 19: Install 1pcs 100Kohm Potentiometer at VR1.
Step 20: The longer pin is inserted into the rectangular pad(positive pole). The shorter pins are inserted into the oval pads.
Step 21: Install 30pcs 5mm Green LED at G.
Step 22: Install 30pcs 5mm Blue LED at B.
Step 23: Install 30pcs 5mm Red LED at R.
Step 24: Install 5pcs 2.54mm Male Pin 1*6Pin at CN1-CN4,CN*.
Step 25: Assemble 2pcs PCB.
Step 26: Connect to power supply and enjoy the effect.
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