HC-08 4PIN Bluetooth Module With Button
Bluetooth Modem – Minimum Pass-through Module HC08 is a new generation data transmission module based on Bluetooth Specification V4.0 BLE protocol. Its wireless working frequency band is 2.4GHz ISM with GFSK modulation method. The maximum transmit power is 4d Bm. Its receiving sensitivity is -93d Bm. In the wide-open environment, it can reach 80m super long-range communication with iphone4s. It has integrated stamp package holes and pins welding holes. You can both mount package and weld pins. It is very convenient to be embedded into the application system. With built-in LED indicator, you can visually see the connection status of Bluetooth. This module adopts core CC2540F256 configured 256K bit. It supports AT commands. Users can change roles (master/slave mode) as well as parameters like Baud rate and the device name according to their own requirements. It is very flexible to use.
Pin Description :
| Pin | Definition | I/O | Explain |
| 1 | TXD | output | UART output, 3.3V TTL level |
| 2 | RXD | input, weak pull up | UART input, 3.3V TTL level |
| 3 | NC | ||
| 4 | NC | ||
| 5 | NC | ||
| 6 | DC | input | Debug clock |
| 7 | DD | Input/output | Debug data |
| 8 | PIO20 | input, weak pull up | NC |
| 9 | PIO17 | input, weak pull down | NC |
| 10 | PIO16 | Input, weak pull down | NC |
| 11 | RST | input, pull up | Module reset pin, a low level of not less than 10ms reset |
| 12 | VCC | input | Power pin, the requirements of 3.3V DC power supply, |
| the supply current is not less than 100mA | |||
| 13 | GND | Ground | |
| 14 | LEDCON | input | LED control pin(Note3) |
| 15 | PIO14 | input, weak pull down | NC |
| 16 | PIO13 | output | LED output(Note1) |
| 17 | PIO11 | input, weak pull down | NC |
| 18 | PIO12 | input, weak pull down | The master module clear memory（Note2） |
| 19 | PIO10 | input, weak pull down | NC |
| 20 | PIO07 | input, weak pull up | NC |
| 21 | USB_D- | NC | |
| 22 | USB_D+ | NC | |
| 23 | PIO06 | input, weak pull up | NC |
| 24 | PIO01 | input, weak pull up | NC |
| 25 | PIO15 | input, weak pull down | NC |
| 26 | PIO00 | input, weak pull up | |
| 27 | VCC | input | Power pin, the requirements of 3.3V DC power supply, |
| the supply current is not less than 100mA | |||
| 28 | GND | Ground | |
| 29 | RXD | input, weak pull up | UART input, 3.3V TTL level |
| 30 | TXD | output | UART output, 3.3V TTL level |
Package Include:
1 x HC-08 4PIN Bluetooth Module With Button
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