DIY 87-108MHz FM Radio With Bluetooth Speaker Soldering Kit Support USB Memory Card Earphone

• PRODUCT FEATURES: DIY soldering kit can be used as a radio, can also be used as a Bluetooth speaker, clear sound quality,Bluetooth name: BT_Audio. The radio kit is a rechargeable design for easier portability. Supports four music playback modes: FM, Bluetooth, USB and memory card. There are also spectral lights below the kit, LED lights that flash to the rhythm of the music.
• EASY TO CARRY: PEMENOL DIY radio is small and light enough for an adult to hold in one hand. The rechargeable design allows the radio to be used without connecting to an outlet. You can enjoy the afternoon sun, the sea breeze and the stars at night with the radio.
• AUTO-SEARCH FOR STATIONS: PEMENOL radio kit comes with the ability to automatically search for stations, making it easier for you to select the stations you want. After you press the button, the radio will automatically search for stations. Each station will play for 3 seconds. When you hear the station you want to listen to, press the button again to stop the automatic search.
• INSTRUCTION DOWNLOAD: Our package includes A MAUNUAL IN PAPER, or you can download a PDF version from Product guides and documents under the Product Details page. If you have any questions or needs after receiving the product, please feel free to contact us, we will offer an effective solution for you.
• BEST GIFT: If you want to make your own gifts, this kit is a great choice. You can get a high-quality radio and Bluetooth speaker in about three hours. And DIY soldering kit can not only exercise hands-on ability, enrich soldering knowledge, very suitable for teachers to help students learn basic electronic knowledge. Long hours of focused soldering are also great for parent-child time.

Detailed Install Instruction Download

1.Install 1pcs 370ohm~10Kohm Metal Film Resistor at R1.

2.Install 1pcs 10Kohm Metal Film Resistor at R2.

1.Use the tool to bend the LED pin as shown in the figure. Pay attention to the bending point and direction.

2.Install 1pcs 5mm Red LED at D5.

1.Install 4pcs 5mm Green LED at D1-D4.

2.Install 1pcs SIP-9 KA2284 LED Driver at U2. Pay attention to the installation direction.

1.Bend the pins of 10uF electrolytic capacitor about 2mm.

2.Then install this Electrolytic Capacitor at C2. 

3.Pay attention to distinguish between positive and negative. The LONGER PINS is POSITIVE POLE and connect to ‘ + ’ pad. 

4.Note: The capacitor must be positioned horizontally, otherwise the subsequent components cannot be installed.

1.Bend and install 1pcs 2.2uF electrolytic capacitor at C5 by the same method.

2. Install 1pcs 10K 503 Potentiometer at VR1.

Connect 1pcs 15cm XH2.54-2P Wire to PCB as showing. Red wire to ‘ + ’ pad at J1. Black wire to the lowest pad at J2.

Cut a 15cm length of black wire from the 30cm wire and connect it to another pad on J2.

Connect 1pcs 15cm XH2.54-2P Wire to 4ohm 3W Speaker. Red wire to ‘ + ’ pad.

Cut a 5cm black wire from 30cm wire and connect it to ANT pad at Bluetooth Amplifier Module, which are used to connect FM antenna socket.

Connect this 5cm black wire to FM Antenna Socket at the longest metal pin.

Tear off the protective film on the surface of the acrylic shell.

1.Fix 1pcs Black Power Switch on acrylic panel.

2.Pay attention to the buckle on the switch, which can be fixed by itself.Pay attention to the installation direction.

Fix 1pcs DC-022 Power Socket by the biggest nut on acrylic panel.

1.Cut about 3cm black wire to connect DC-022 Socket and Black Power Switch.

2.Pay attention to their pin selection and can not choose to connect other pins.

Cut about 8cm black wire and connect to another pin on Black Power Switch.

Cut about 8cm black wire and connect to the pin as showing on DC-022 Socket.

Connect black wire from Black Power Switch to ‘ + ’ pad at J1 at PCB.

Connect black wire from Black DC-022 Socket to ‘ - ’ pad at J1 at PCB.

1.Fix 3.7V Polymer Lithium Battery.

2.Red wire connect to Black Power Switch and black to PCB.

Fix 15cm black wire from PCB to the left male pin at Bluetooth Amplifier Module.

Bend the two rightmost male pins and insert the XH2.54-2P plug from PCB.

Test after connect 4ohm 3W Speaker.

Fix speaker on Acrylic Board by 4pcs M3 Metal Screw and 4pcs M3 Nuts.

Fix 4pcs M3*10mm Nylon Column on Bluetooth Amplifier Module by 4pcs M3*6mm Nylon Screw.

Fix Bluetooth Amplifier Module Acrylic TOP Board by 4pcs M3 Nylon Screw.

Fix 4pcs M3*10mm Nylon Column on PCB by 4pcs M3*6mm Nylon Screw.

Fix Audio Indicator PCB another Acrylic Board by 4pcs M3 Nylon Screw.

Paste double-sided adhesive or other fixing adhesive on the back of the battery.

Paste 3.7V Polymer Lithium Battery on Acrylic Board.

1.Fix Bluetooth Amplifier Acrylic Board on Power Switch Acrylic by M2 Metal Screw and M2 Nut.

2.Tips: It is recommended to ask for help from others or tools to stabilize the shell and screws.

Fix Audio Indicator PCB Acrylic Board on Power Switch Acrylic by M2 Metal Screw and M2 Nut.

Fix Speaker Acrylic Board by M2 Metal Screw and M2 Nut.Check the wire connection.

Fix one side Acrylic Board by 4pcs M2 Metal Screw and 4pcs M2 Nut.

Fix the last side Acrylic Board by 4pcs M2 Metal Screw and 4pcs M2 Nut.