Digital FM Radio Module 87‑108MHz Stereo Output DIY Wireless Audio LCD Display

Description

Digital FM Radio Module 87‑108MHz Stereo Output DIY Wireless Audio LCD Display
Feature:
1. Adopt advanced digital audio signal processing (dsp) and phase-locked loop (pll) fm modulation to make the sound more lifelike, the performance is more stable, and the long-time work does not shift the frequency
2. LCD display is more intuitive and accurate, with extremely low power consumption and low noise
3. Possess the functions of searching and storing radio stations, built-in 30 digital volume adjustment knobs, which can easily complete the operation
4. Automatically close the data memory before power off, and automatically switch the speaker/headphone output
5. Quartz crystal frequency is stable, no more frequency drift when temperature changes
6. Professional dsp audio signal analysis and processing, automatically mute the long time of fm signals with no signal or weak noise floor, far away from traditional fm broadcast signals or the annoying rustle when there is no or weak signal
7. Digital incremental rotary encoder to adjust volume and frequency, good in use, possess accurate positioning, stable and durable, 360° rotation without dead angle
8. Support serial communication control, computers or devices using other MCU control modules have complete serial functions
Specification:
Item Type: FM Receiver Module
Material: PCB
Use:
Output Power: 500mw(driving earphones), 3w x 2(driving speakers)
Frequency Range: 50hz-18khz
Receiving Frequency Range:
Close Campus Radio: 87.0mhz-108.0mhz
Open Campus Broadcast: 76.0mhz-108.0mhz
Noise Equivalent: 3030db

Power Supply Voltage: 3.0v-5.0v
Supply Current: Maximum Capacity: 1000ma, Minimum Capacity: 60ma (for reference only)
Channel: Stereo
<1>: Power
1. The module has a Micro USB interface and can be powered by a computer USB.
2. The corresponding ports of the module (marked on the PCB) - and + are respectively connected to the negative and positive terminals of the power supply (battery). It is recommended to use a battery or other regulated power supply for the power supply. It is not recommended to use switching power supplies without filters (such as mobile phone chargers, mobile power supplies, and other switching power supplies), otherwise the interference generated by the power supply will affect the normal operation of this module. The normal working voltage of this module is 3.0-5.0V, and the power supply voltage should not exceed this range.
<2>: Antenna
The FM_ANT port is used to connect an FM antenna. In order to better receive FM signals, it is recommended to connect a 75cm-long whip antenna.
<3>: Headphone/speaker output
This module comes with a 3WX2 channel audio power amplifier. If you need a speaker to connect to the speaker port, it is recommended to use a 4Ω/3W speaker. If the earphone is inserted, the audio is automatically switched to the earphone channel, and the speaker channel is automatically closed.
<4>Volume adjustment
Turn the VOL encoder (the one on the right) to adjust the volume, and the LCD screen displays the volume level.
<5>Frequency adjustment
Turn the Frequency encoder (the encoder on the left) to adjust the receiving frequency, and the LCD screen displays the current frequency.
<6>Automatic channel search
Short press the Frequency encoder to automatically search for local radio stations. At the same time, the LCD screen displays the current frequency, and it stops when a valid radio station is found.
<7>Mute
Short press the VOL knob down to switch mute/non-mute.
<8>Automatic squelch switch
Long press the VOL knob down to switch on or off the automatic squelch function, the LCD display subtitles ON means to turn on the automatic squelch, and OFF means to turn off the automatic squelch.
<9> Automatic squelch threshold (threshold) adjustment (effective when the automatic squelch switch is turned on)
Long press the Frequency knob down to enter the automatic squelch threshold adjustment interface. Rotate the VOL knob to adjust the automatic squelch threshold according to the specific usage. The adjustment range is 0-31. The larger the value, the higher the threshold and the weaker the signal. Easy to be muted. The opposite is true.
<10>: Connect to the serial port (no need to connect to the serial port for control)
The module reserves a TTL level serial port control interface. The communication between the TTL serial port and this module needs to be connected to the module's UART_RX, UART_TX and GND (the corresponding position on the PCB is marked), and the external MCU (microcontroller) or computer serial port can be used to send instructions to control the module.
Package List:
1 x Module
2 x Nut
2 x Gasket
Note:
The corresponding ports of the module (marked on the PCB board) ‑ and + are respectively connected to the negative and positive terminals of the power supply (battery). It is recommended to use a battery or other stabilized power supply for the power supply. It is not recommended to use switching power supplies without filters (such as mobile phone chargers, mobile power supplies, and other switching power supplies), otherwise the interference generated by the power supply will affect the normal operation of this module. The normal working voltage of this module is 3.0‑5.0V, and the power supply voltage should not exceed this range.
How To Use
We accept PayPal .
We ship item to your PayPal verified address.
Payment must be received within 3 days from the date of purchase.
All the items will be dispatched within one business day by Airmail after the payment is clear.
Most times you will receive your order within 10-30 business days after we transfer your package to the delivery company. We cannot guarantee the delivery timeframe if the post office has any unexpected delays due to holiday, weather, customs, or other conditions. Some countries like Russia, Brazil, or some European countries may take up to 50 days or longer for delivery.
We appreciate your patience if you haven't received items in 30 days(Russian customers may need more patience by reason of the local delivery system and/or customs). If you are concerned in any way, please feel free to contact us via ebay message
instead of leaving negative/neutral feedback or opening a dispute
.
We will make every effort to fix any problem(resend or refund any missing item).
Customs duty is obligation and liability of
citizen
s in your country, so buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs.
1. Our listing price includes the value of goods,packaging cost,and export
taxes,not including international duties.
2. duties,taxes,and charges are not included in the item price or shipping fee.
3.
T
he duties are buyers' responsibility
.Please check with your country's
customs office determine what these additional costs will be prior to your
purchase.
4. All disputes arising from the duties will be submitted to ebay for solution.
1. Any questions,
pls. contact us via ebay message or email us.
We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. post a message again because sometimes our message system may block some emails.
2. If you are satisfied with our service, pls. kindly leave us a positive feedback and give us the Detailed Seller Rating with all "
5
" in very area
3. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better.
We strive to keep all our customers satisfy.
We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.