EWM104-BT62SP_Other_BLE_Module

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EWM104-BT62SP Module audio Bluetooth basé sur le protocole Bluetooth 5.3 – Format compact et intégration facile.

[Interface de communication]：UART

[Fréquence]：2,4 GHz

[Portée de communication]：100 m

[Dimensions]： 13 * 19 mm

[Poids du produit]：1,1 g ± 0,1 g

[Introduction]：L'EWM104-BT62SP est un module audio Bluetooth basé sur le protocole Bluetooth V5.3 et conforme aux spécifications Bluetooth V5.3 BR+EDR+BLE. Intégrant des fonctionnalités de transmission et de réception audio stéréo Bluetooth, il dispose d'interfaces pour l'entrée audio USB, l'entrée carte SD et l'entrée/sortie de signal analogique à deux canaux, ainsi que d'un port série UART. Les utilisateurs peuvent modifier le nom Bluetooth et contrôler la lecture audio via des commandes AT. En mode transmission, il se connecte à des casques ou des enceintes Bluetooth pour diffuser de l'audio ; en mode réception, il se connecte à des appareils tels que des smartphones ou des ordinateurs pour recevoir et lire de l'audio. Il convient à des applications telles que la transmission audio Bluetooth et la lecture de musique.

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Pin number	Pin Definitions	Pin direction	Pin Function	illustrate
1	GND	-	land	power ground
2	MODE	I	Transmit/Receive Mode Selection	The transmit/receive mode selection pin is floating by default in receive mode, and low level in transmit mode.
3	LED1	THE	Transmit indicator GPIO	Used to connect an indicator light (lit in transmit mode, off in receive mode):
				When Bluetooth is not connected or is connected: Fast, even flashing (100ms on, 100ms off).
				When Bluetooth connection is successful: Flashes twice every 5 seconds (5 seconds off, 100ms on, 100ms off, 100ms on).
4	LED2	THE	Receive indicator GPIO	Used to connect an indicator light (lit in receive mode, off in transmit mode):
				When Bluetooth is not connected: Fast, even flashing (100ms on, 100ms off).
				When Bluetooth connection is successful: Flashes twice every 5 seconds (5 seconds off, 100ms on, 100ms off, 100ms on).
5	LINK	THE	Indicator GPIO	This indicator light is used to implement the following logic: Connectivity status pin: 3.3V output when Bluetooth is connected, 0V output when not connected.
6	PAIR	I	Button GPIO	Pairing button, floating by default, active low.
				A short press disconnects the connection and allows for re-pairing;
				Press and hold for 5 seconds to clear all devices from the whitelist.
7	DM	-	USB	DM data cable interface (used to connect to a computer's USB port as a sound card)
8	DP	-	USB	DP data cable interface (used to connect to a computer's USB port to function as a sound card)
9	RXD2	I	serial port	Serial port receiver (extension pin, used for configuring Bluetooth-related information via serial port)
10	TXD2	THE	serial port	Serial port transmitter (extension pin, used for configuring Bluetooth-related information via serial port)
11	GND	-	land	power ground
12	LIN/OUT_R	I/O	Right channel input/output	Audio signal right channel input/output dual-function port (inputs audio signal when configured for transmit mode, outputs audio signal when configured for receive mode)
13	LIN/OUT_L	I/O	Left channel input/output	Audio signal left channel input/output dual-function port (inputs audio signal when configured for transmit mode, outputs audio signal when configured for receive mode)
14	AGND		audio	audio
15	NC	-	Reserved pins	Reserved pins, users don't need to worry about them.
16	NC	-	Reserved pins	Reserved pins, users don't need to worry about them.
17	VBAT		power supply	Power supply pin
18	GND		land	power ground
19	NC	-	Reserved pins	Reserved pins, users don't need to worry about them.
20	SD_PWR	THE	External SD card	Reserved SD card power supply pin, 3.3V
21	SD_CMD	I/O	External SD card	Reserved SD card command/response pins
22	SD_CLK	THE	External SD card	Reserved SD card clock pin
23	SD_DAT	I/O	External SD card	Reserved SD card data pins
24	NC	-	Reserved pins	Reserved pins, users don't need to worry about them.

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