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SKU
COM-03-065
Ships in 2-3 business days, then:
Free delivery in 10-15 days by YunExpress on orders over $35.
Free delivery in 5-7 days by DHL on orders over $200.
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$1.95
This module supports UART interface and supports SP Bluetooth serial port protocol, which has low cost and small size.
Low power consumption, high sensitivity of transmission and reception, and only a small number of peripheral components can achieve its powerful functions.
Common Pins:
1>.Pin-1:UART_TXD.UART data output
2>.Pin-2:UART_RXD.UART data input
3>.Pin-11:RESETB.Reset/restart button
4>.Pin-12:3.3V
5>.Pin-13:GND
6>.Pin-21:GND
7>.Pin-22:GND
8>.Pin-24:P12 LED pin (slow flash when not connected. Always lit after connection)
9>.Pin-25:P12 host interrupt indication port, idle is low, the connection is high
Specificatoins of BT04-A Bluetooth Serial Module:
- Speciification:
- 1>.Model: DX-BT04-A
- 2>.Working frequency: 2.4GHz
- 3>.Communication interface: UART 3.3V level
- 4>.Working voltage: DC 3.0V-3.6V
- 5>.RSSI: Not supported
- 6>.Communication level: 3.3V
- 7>.Transmit power: 4dBm (maximum)
- 8>.Reference distance: 10m
- 9>.Transmit current: 8.5mA
- 10>.Accept current: 8.5mA
- 11>.Air speed: 6Kbps
- 12>.Antenna interface: Built-in PCB antenna
- 13>.Low power current: 400uA
- 14>.Receive sensitivity: < -84dBm at 0.1% BER
- 15>.Working humidity: 10%-90%
- 16>.Storage temperature: -40℃~85℃
- 17>.Working temperature: -25℃~75℃
- 18>.Module size:27*13*1.5mm
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