EWM104-BT61SX_Other_BLE_Module

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EWM104-BT61SX Module de transmission/diffusion de données audio Bluetooth

[Communication Interface]：UART

[Operating Frequency]： 2.4GHz

[Bluetooth Protocol]：BLE 5.4

[Communication Distance]：160m

[Dimensions]：14*16.8mm

[Product Weight]： 1.0±0.1g

[Introduction]：Le module EWM104-BT61SX est un émetteur-récepteur audio Bluetooth double mode basé sur Bluetooth 5.4 et doté d'une interface d'antenne IPEX-1. Il prend en charge l'audio LE, le Bluetooth classique et le Bluetooth stéréo, et offre une puissance d'émission maximale de 8 dBm. Ce module est compatible avec les commandes AT pour la configuration des paramètres, la diffusion de type « un à plusieurs », l'entrée d'une carte son USB, l'entrée sans fil Bluetooth et l'entrée de signaux analogiques double canal. Il prend également en charge la sortie de signaux analogiques double canal et la diffusion sans fil Bluetooth, pour une utilisation simple et rapide.

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Pin number	Pin Definitions	Pin direction	Pin Function	illustrate
1	WKP	input	Sleep pin	The sleep/wake pin is left floating by default. Holding it at a low voltage for more than 3 seconds will switch between sleep and wake-up states.
2	D1	input	Address bit D1	Default pull-up
3	D2	input	Address D2	Default pull-up
4	GND	-	power ground
5	D3	input	Address D3	Default pull-up
6	D4	input	Address bit D4	Default pull-up
7	D5	input	Address D5	Default pull-up
8	D6	input	Address bit D6	Default pull-up
9	USB_DM	Input/Output	USB_D-	USB differential data negative polarity
10	USB_DP	Input/Output	USB_D+	USB differential data positive polarity
11	SW	input	Connection confirmed	Used to confirm pairing; can be connected to a button; defaults to pull-up; effective on falling edge.
12	GND	-	power ground
13	TX/RX	input	Transmit/Receive Mode Settings	This port operates in receive mode when left floating, and in transmit mode when connected to GND.
14	LINK	Output	Connection status output indication	TX: A periodic double flashing pattern with a 5-second cycle of 300ms on, 100ms off, and 300ms on again. RX: Before receiving, it flashes periodically for 0.5 seconds on and 0.5 seconds off, with a period of 1 second. After receiving the broadcast, the flashing pattern is the same as TX.
15	UART_RXD	input	Serial port RXD	TTL input, connected to the external TXD output pin
16	UART_TXD	Output	Serial port TXD	TTL output, connected to external RXD input pin
17	MUTE	Output	Power amplifier enable pin	-
18	AGND	-	Simulated land	audio signal ground
19	OUT_R	Output	Right channel audio output	The output has a DC component, so an external DC blocking capacitor is required.
20	OUT_L	Output	Left channel audio output	The output has a DC component, so an external DC blocking capacitor is required.
21	LINE_IN	input	Audio input detection	Pull-up by default, active low.
22	IN_R	input	Audio right channel input
23	IN_L	input	Audio left channel input
24	GND	-	power ground
25	KEY1	input	Play/Pause	Active low, momentary low level plays/pauses
26	KEY2	input	Volume down/Previous track	Active low level; falling edge switches to the previous track; volume decreases if low level is maintained for more than 1 second.
27	KEY3	input	Volume up/Next track	Active low level, falling edge switches to the next track, volume increases if low level is maintained for more than 1 second.
28	VPWR	input	charging pin	Operating voltage: 4.5V~5.5V
29	VBAT	input	Battery power supply pin	Operating voltage 3.0V~4.4V, this pin can be connected to a battery for power supply.
30	IOVDD	Output	IO voltage 3.4V	Used for powering peripherals, maximum current 120mA
31	GND	-	power ground
32	GND	-	power ground

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