About the Project:

DIY Kit about an 76.0MHz-108.0MHz Wireless FM Radio Receiver
With a built-in high-definition display LCD display screen which can clearly display the receiving frequency
It can store 22 radio stations, and will search for radio stations automatically
Built-in 30-level digital volume adjustment
Built-in rechargeable module
Built-in 5W power amplifier
Automatic memory function after power off
Power saving mode with backlight off for 20 seconds
Support speaker and earphone audio output

Parameter:

Work Voltage:DC 3.0V~5.0V
Output impedance:8ohm
Output power:5W
Output channel:Mono for speaker and Dual channel for earphone
Frequency:87.0MHz~108.0MHz(Disable Campus Broadcasting Band)
Frequency:76.0MHz~108.0MHz(Enable Campus Broadcasting Band)
Equivalent noise: >=30dB
Size(Installed):118*87*27mm

Supplies

Step 1: Installation Steps

Step 1: Install 1pcs 39Kohm Metal Film Resistor at R1.

Step 2: Install 2pcs 10Kohm Metal Film Resistor at R2,R3.

Step 3: Install 1pcs SOP-14 IC LM4863 at U1.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 Socket.

Step 4: Install 1pcs micro USB socket at J2.

Step 5: Prepare 6pcs pin header.

Step 6: Install 1pcs Charging Module at J7 and fix by 6pcs pin header.

Step 7: Remove black fixed block from 6pcs pin header and fix Charging Module.

Step 8: Install 1pcs 0.1uF Monolithic Capacitor at C2.

Step 9: Install 1pcs 1uF 50V Electrolytic Capacitor at C1.Pay attention to distinguish between positive and negative.The Longer pin is positive pole.

Step 10: Install 1pcs 3.5mm Audio Socket at J5.

Step 11: Cut a pin from 16Pin Female Socket.

Step 12: Install Female Socket at FM.Pay attention to the direction of the cut pin.Step 13: Install 1pcs Self-locking Button at S6.

Step 14: Install 5pcs 6*6*20mm Black Button at S1-S5.

Step 15: Install 1pcs Self-locking Button Cap on Self-locking Button.

Step 16: Install 1pcs Antenna at ANT.Note that the antenna should be installed on the front of the PCB.

Step 17: Install 1pcs 18650 Battery Box at J1,J3.Pay attention to the positive and negative.Red wire is positive pole.

Step 18: Install 2pcs 15cm black Cable on speaker.

Step 19: Connect speaker to PCB at SP. The speaker does not distinguish between positive and negative.

Step 20: Install 1pcs FM Audio Receiver on Female pins.Pay attention to the direction of the cut pin.

Step 21: Tear off the protective film on the surface of the acrylic shell.

Step 22: Install 4pcs M3*15mm Copper Pillar and 4pcs M3*10mm Screw on Acrylic bottom plate.

Step 23: Fixed speaker on acrylic bottom plate by 4pcs M3*6mm Screw.

Step 24: Install 3pcs M3*6mm Screw and 3pcs M3 Nut on Acrylic bottom plate.Note that the wire should not be placed between the PCB and the acrylic.

Step 25: Fixed main PCB on acrylic bottom plate by 3pcs M3 Nut.Note that the wire should not be placed between the PCB and the acrylic.

Step 26: Adjust the position of the battery box. Do not place the wires under the battery box. The wires can be moved to both ends of the battery box.

Step 27: Fix other acrylic plate by 6pcs M3*6mm Screw and 6pcs M3 Nut.

Step 28: Connect to power supply and enjoy the effect.

Step 2: Using Methods

1.Keep press AUTO button to automatically search and store the radio stations that can be listened to.

2.Automatically name searchable stations like P01,P02,P02 and so on.

3.Press P+ and P- to switch saved stations.

4.Press V+ and V- to adjust volume from V00 to V30.

5.Switch Campus Broadcasting Band: Keep press V+ and V- before power ON and then turn ON work power switch. It means enable Campus Broadcasting Band if display C1 on LCD. It means disable Campus Broadcasting Band if display C0 on LCD.Available after restart.

6.Enable backlight mode: Keep press P+ and P- before power ON and then turn ON work power switch. It means keep backlight ON if display B1 on LCD. It means the backlight will turn OFF after 20second if display B0 on LCD(This is the power saving mode).Available after restart.

7.It can output audio from speaker and earphone jack. The speaker of the module does not work when the earphone is connected

Step 3: Some Function and Operation About the Radio

Automatic Search Radio Station

After power on, press and hold the mute button for 3 seconds to start automatic station search. When all 22 stations are searched, it will automatically store the stations.

How to Turn On/Off Campus Radio

When the power is off, long press the two volume buttons (VOL+, VOL-) and then press the switch, LCD display “C1” indicates that the campus broadcast is turned on. And you need to restart the radio for the settings to take effect. As the same operation as above, when LCD display “C0” indicates that the campus broadcast is turned off. Restart the radio for the settings to take effect.

About Setting the Backlight

When the power is off, long press the two FM buttons (P+, P-) and then press the switch, LCD display “B1” means the backlight will be always on. And you need to restart the radio for the settings to take effect. As the same operation as above, when LCD display “B0” means the backlight will turn off after 20 seconds. Restart the radio for the settings to take effect.

Charge the Battery

A 18650 battery is needed which is not included. It can be charged by normal mobile phone charger. The light is red when charging, and the light will turn green when fully charged. It can be used about 7-8 hours when the battery is fully charged.

Step 4:

Any interest in making a radio kit at home? If yes, try this one! Or maybe another hot sale one in our store : 87.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit. PDF dnstallation documents can be download from the attached documents.

Thanks a lot for your attention. ICStation have new products per week. We will continues to offer some nice products. Feel free to contact us if you have any suggestion:) We can try our best to source those you need:)