Giới thiệu [Lập Trình Nhúng A-Z][G22] Mạch Giải Mã Âm Thanh Bluetooth XH M Serial - MH-MX8 4.2 (M18/M28/M38)
📌 THÔNG SỐ KỸ THUẬT M18: ✔️ KEY: The end button control (4 keys function, need to add another resistor ✔️ MUTE: The mute control end (mute when 3.3 V, output level play when output low level) ✔️ VCC: The positive 5 V power supply (3.7 V lithium battery power supply need to short circuit diode) ✔️ GND: Power supply cathode ✔️ L: The left sound channel output ✔️ R: The right sound channel output
📌 THÔNG SỐ KỸ THUẬT M28: ✔️ 5V: The positive 5 v power supply ✔️ GND: Power supply cathode ✔️ VBAT: The positive 3.7 4.2 V lithium battery ✔️ L: The left sound channel output ✔️ R: The right sound channel output ✔️ AGND: In the audio
📌 THÔNG SỐ KỸ THUẬT M38: ✔️ 5V:The positive 5v power supply ✔️ GND: Power supply cathode ✔️VBAT: The positive 3.7 4.2 V lithium battery ✔️ L + / L -: Left sound channel output (directly connect the speaker) ✔️ R + / R -: Right sound channel output (directly connect the speaker)