FM Radio Kit for Soldering with RDA5807M Module Two 3 W Speakers 5 W + 5 W Stereo Amplifier LED Display No Case Soldering Education
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This FM radio kit is designed for anyone who wants to learn to solder while building a functional receiver with truly decent sound. The heart of the circuit is the receiver module RDA5807M, which covers the band 87.5–108 MHz and features high sensitivity and low noise. The entire radio is controlled by the STC15W408AS microcontroller, which manages the buttons and the display. The sound is amplified by the AXS2031 digital amplifier with a power output of 5 W + 5 W to two channels. The kit is supplied as loose components without a case, allowing you to assemble the entire circuit step by step.
On the printed circuit board, you will find a four-digit LED display with blue digits, which shows the current frequency or the set volume during operation. Control is handled by four buttons: two for changing the frequency and two for volume. A short press adjusts the tuning by 0.1 MHz or changes the volume by one level, while a long press initiates automatic station search. The radio can be powered via USB-C or from a lithium cell 18650 with a voltage of 3.7 V, for which a holder is included in the kit. When powered via USB-C, the cell is simultaneously charged, and charging automatically stops once fully charged.
- Received Band – FM 87.5–108 MHz
- Receiver Module – RDA5807M
- Microcontroller – STC15W408AS
- Amplifier – AXS2031 with an output power of 5 W + 5 W
- Speakers – 2 pcs 4 Ω 3 W
- Display – four-digit LED display with blue digits
- Power Supply – USB-C 5 V or lithium cell 18650 3.7 V
- Power Supply Voltage Range – 2.5–5.5 V
- Voltage Stabilisation – 3.3 V module with step-up and step-down voltage
- Audio Output – 3.5 mm connector for headphones or external amplifier
- Antena – telescopic 30 cm with adjustable angle
- Operating Temperature – -20 to 65 °C
- Package Contents – printed circuit board, LED display, microcontroller with socket, RDA5807M module, 3.3 V stabilisation module, charging module with USB-C, amplifier chips, 3.5 mm connector, USB cable, 2 speakers, telescopic antenna, wires, resistors, capacitors, transistors, pin header, switch, 4 buttons, and holder for 18650 cell (cell not included)
Before soldering, it is advisable to check the components against the list and verify the resistor values with a multimeter. Begin with the smallest components and work up to the larger ones, starting with the small modules and then the leaded components. It is best to screw the antenna in place before soldering it to ensure it holds firmly. Once the board is completed, simply connect it to USB-C or insert a charged cell, turn it on with the switch, and tune in to a station. Headphones or a cable to another amplifier can be connected to the audio output.
This kit is suitable for school clubs, electronics education, technical hobbies, and independent soldering learning. The circuit combines working with leaded and small components and demonstrates how the receiver, microcontroller, and amplifier work together. The finished radio offers stereo sound from two speakers, and the display makes tuning straightforward. The no case version keeps the entire circuit visible, making it ideal for demonstrations and further modifications. A standard USB-C power source or lithium cell is sufficient for powering.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Withdrawal period30 days from receipt of the goods
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Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
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About the seller
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Seller:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
Manufacturer:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
EU responsible person:
EU Consulten Srls
Address: Via Varesina 55, 20156 Milano, Italy
E-mail: Eu-consultenSrls@hotmail.com
Telephone: +39 328 583 2654
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