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Parameter | Min. | Typ. | Max. | Unit | Condition |
Operation Conditions | |||||
Working voltage range | 1.71 | 3.3 | 4.3 | V | |
Operating temperature range | -40 | 60 | ℃ | ||
Current Consumption | |||||
Receive current | 7.1 | mA | |||
Emission current | 7.4 | mA | |||
Sleep current | < 7.5 | uA | |||
Idle current | < 6.58 | mA | Idle state: refers to no connection, no broadcasting/scanning of the module | ||
RF Parameter | |||||
Frequency Range | 2400 | 2483.5 | MHz | ||
Transmit power | -16 | 10 | dBm | ||
Receiving sensitivity | -95 | dBm |
Type | Bluetooth |
Certification | CE-RED, FCC ID |
Pin NO. | Pin name | I/O | Pin function | Description |
1, 9 | GND | GND | Power ground | |
2 | NC | Dangling feet | ||
3 | SWCLK | SWCLK/GPIO | Connect to internal IO, used to burn program, it can be used as normal IO when running | |
4 | SWDIO | SWDIO/GPIO | Connect to internal IO, used to burn program, it can be used as normal IO when running | |
5 | PA0 | I | CS | Module sleep pin CS (low level work, high level sleep, default high level) |
6 | PA1 | I | SET | Module configuration pin SET (high level during normal communication, enter configuration mode when SET pin is pulled low, default high level) |
7 | PD5 | O | USART1_TX | Module serial data transmission pin TXD (level voltage is up to 3.3V) |
8 | PD4 | I | USART1_RX | Module serial data receiving pin RXD (level voltage up to 3.3V) |
10 | VCC | VCC | Connect to the positive pole of the power supply (1.71-4.3V) | |
11 | PD7 | O | CS_DE | Sleep status indicator pin (low level when sleeping, high level when working) |
12 | RESET | I | RESET | Module reset pin, high level reset, there is a pull-down resistor inside. |
13 | PD6 | O | MODE_DE | Working status indicator pin (high-level output is advertise state, low-level output is non-advertise state) |
14 | PC5 | I/O | PC5 | GPIO |
15 | PA3 | I/O | PA3 | Debug_TX |
16 | PA2 | I/O | PA2 | Debug_RX |
17 | PA7 | I | DISC | Bluetooth connection enable pin, pull down to disconnect Bluetooth connection, default high level |
18 | PA6 | I/O | PA6 | GPIO |
19 | PA4 | I/O | PA4 | GPIO |
20 | PA5 | O | SET_DE | High level = Transparent transmission mode Low level = AT configuration mode |
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