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phaten-audio/en/docs/dev_doc/faq/technical_faq/technical_faq.md
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WiFi Audio Speaker + Bluetooth Module FAQ This document compiles common technical questions and answers regarding wireless WiFi modules and Bluetooth modules in areas such as infrared remote control, power consumption, chip architecture, TX/RX conversion, Bluetooth TWS, etc., helping developers quickly locate and resolve issues. 8711, wireless speakers, infrared remote control, module power consumption, WiFi BT chip, TX RX conversion, Bluetooth TWS, technical FAQ

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WiFi Audio Speaker + Bluetooth Module Technical FAQ

Q1: Does the module support infrared remote control decoding?

Yes, infrared decoding functionality is supported.


Q2: Module power consumption during operation and standby

=== "Sleep Mode 1" - Operating State: TX/RX both sleep, WiFi off, TX and RX BLE operational - Sleep Entry Method: - Application actively calls Sleep interface - Automatically enters after detecting no I2S data for a period - Wake-up Method: - UART/GPIO interrupt wakes TX → TX wakes RX - UART/GPIO interrupt wakes RX → RX wakes TX (bidirectional wake-up) - Current Draw: - Unidirectional wake-up: TX ≤1mA, RX ≤3mA - Bidirectional wake-up: TX ≤3mA, RX ≤3mA

=== "Sleep Mode 2" - Operating State: TX WiFi does not sleep, RX WiFi sleeps, TX/RX BLE off - Sleep Entry Method: - Application actively calls Sleep interface - Automatically enters after detecting no I2S data for a period - Wake-up Method: - Application calls playback interface (TX automatically wakes RX) - Automatically wakes RX when I2S data is detected - Current Draw: RX ≤1mA


Q3: Module WiFi and BT chip architecture

Uses a single SoC chip integrating WiFi and BT functionality.


Q4: Does it support online TX/RX conversion?

Support Status:

  • Supports TX/RX online conversion in WiFi mode
  • BT mode limitations:
    • SoC only supports BLE 5.0
    • Does not support Classic BT
    • Cannot transmit audio via mobile phone Bluetooth

Operating Mode Description:

=== "TV Mode:" - Transmitter box is WiFi TX - Receiver speakers are dual RX (left/right channels)

 ![TV Mode](/assets/images/faq/wifiaudio_bl/FCM362K_problem_4-1.png)

=== "BT Mode:" - Left speaker: - Acts as BT receiver for mobile phone signal - Simultaneously acts as WiFi TX to transmit to right speaker - Right speaker: Pure WiFi RX mode

 ![BT Mode](/assets/images/faq/wifiaudio_bl/FCM362K_problem_4-2.png)

Q5: Bluetooth TWS function implementation

  • Does not support native Bluetooth TWS functionality
  • Alternative Solution:
    • Left speaker (with remote control receiver) acts as TX in BT mode
    • Transmits right channel to right speaker via TWS method
    • Right speaker (without remote control receiver) acts as RX to receive TWS signal

TWS Solution

Contact and Feedback

Click to expand contact and feedback form

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