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The ZX5005 is a standard Bluetooth mesh network module. ZX5005 series is a low-power Bluetooth transparent transmission module launched by Hangzhou Zexin Communication Technology Co., LTD. It has quite significant applications in our daily life.

The ZX5005 Series, developed by Hangzhou ZheXin Communication Technology, is a cutting-edge low-power Bluetooth LE 5.3 module designed for fast deployment and flexible IoT applications. Compact yet powerful, this module significantly reduces development time and complexity, making it an ideal solution for wireless data transmission in smart devices.

With built-in 512KB Flash, the ZX5005 supports Bluetooth 5.3, BLE Mesh, Zigbee 3.0, and 2.4G proprietary protocols, offering unmatched versatility for diverse connectivity needs. Its preloaded firmware allows quick setup with minimal configuration, while full support for OTA upgrades and custom development ensures long-term adaptability.

As a Bluetooth mesh network module, the ZX5005 series is highly suitable for smart home systems, industrial Internet of Things, wearable devices and remote monitoring. It features reliable performance, ultra-low power consumption and easy integration, enabling your products to have next-generation wireless capabilities.

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ZX5005 Main Features

ZX5005 Application

The following figure shows the pin number description of the module:

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Serial number	Pin	Function	Direction	Notes and explanations
1	NC	-	-	-
2	GND	GND	-	Grounding
3	PC4	GPIO	-	-
4	PC3	GPIO/PWM	-	-
5	PC1	OTA_EN	Input	nput port P_OTA_EN, used for OTA function switching; When P_OTA_EN is at a low level, the module prohibits OTA. When P_OTA_EN is at a high level or left idle, OTA is allowed.


6	PC2	GPIO	-	Reuse function：PWM0/7816_TRX/I2C_SDA
7	PB4	SLEEP	Input	Input port P_SLEEP for low-power control; When P_SLEEP is at a low level, the module enters SLEEP mode. If low-power control is not required, this pin can be left floating.
7	PB4	SLEEP	Input
8	PB5	GPIO	-	Reuse function：ADC/PWM5/SDM_N0/COMP_IN5
9	PD7	GPIO	-	Reuse function：SPI_CK/I2C_SCK/I2S_BCK/7816_TRX
10	VCC	Power	-	Rated3.3v
11	GND	Ground	-	Grounding
12	RST	Reset	Input	Module reset pin High level: The module is operating normally Low level: The module remains reset Note: This pin has an internal pull-up function. When not in use, it can be left suspended



13	PA7	SWS	-	Burner port
14	NC	-	-	-
15	PA1	GPIO	-	Reuse function：I2S_CLK/7816_CLK/DMIC_CLK
16	PB7	GPIO	-	Reuse function：ADC/SPI_DO/SDM_N1/COMP_IN7/UART_RX
17	PB1	UART TX	Output	Serial port data output pin
18	PA0	UART RX	Input	Serial port data input pin
19	NC	-	-	-
20	NC	-	-	-
21	PB6	P_CONN_ST	Output	Connection status indicator pin High level: Indicates that the module is in a connected state Low level: Indicates that the module is not connected


22	PD3	GPIO	-	Reuse function：PWM1N/I2S_SDI/7816_TRX
23	PD4	GPIO	-	Reuse function：PWM2N/I2S_SDO
24	PD2	GPIO		Reuse function：PWM3/SPI_CN/I2S_LR
25	PC0	DISCONNECT	Input	Input port P_DISCONN for disconnecting Bluetooth connection; The P_DISCONN disconnects the current Bluetooth connection at the falling edge. If it is not necessary to actively disconnect the Bluetooth connection, this pin can be left unconnected.
25	PC0	DISCONNECT	Input
26	GND	Ground		All GND should be connected
27	ANT	External antenna interface		By default, it is a PCB antenna. To connect an external antenna, an internal skipping device is required, with the bit number: C20
27	ANT	External antenna interface

FAQ

Q: What is a Bluetooth mesh network?

A: Bluetooth Mesh is a mesh networking standard that operates on a flood network principle. It's based on the nodes relaying the messages: every relay node that receives a network packet that. authenticates against a known network key.

Q: What is the difference between Bluetooth Mesh and Zigbee mesh?

A: Zigbee can support a higher number of nodes in a mesh. The theoretical limit of bluetooth Mesh is 32,000 nodes, whilst it is 65,000 nodes for zigbee. This implies that a zigbee mesh network-theoretically- can cover twice the area of bluetooth mesh. In practice, the network size will be limited by other concerns.

Q: Is mesh network better than WiFi?

A: Unlike traditional WiFi extenders, mesh systems ensure consistent and reliable speeds, no matter how far you are from the main router. This means you can enjoy seamless internet access throughout your large or multi-story home, and even in your yard, without any slowdowns.

Q: How many devices can connect to a mesh network?

A: The theoretical number can get as high as 128 devices (eero) or 200 devices (Google WiFi). However, if these devices are doing high-bandwidth activities, like streaming or gaming, then the more accurate number is 28-30 devices at one time.

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Bluetooth Mesh Network Module

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