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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
ACM BLUETOOTH STACKABLE SHIELDBC04 B Master Slave Selectable Bluetooth Module Shield 5V 3. 3V with Switch BC04 B Master Slave Selectable Bluetooth Module Shield Overview This is redesigned arduino bluetooth shield based on our BC04 A module, arduino stackable, and use use arduino pin 3 and 4 as software serial port for communication. Features Master Slave selectable, based on BC04 B module LED indicator the bluetooth status, fast flashing means not paired yet, constant high status
BC04-B Master Slave Selectable Bluetooth Module Shield 5V/3.3V with Switch
BC04-B Master Slave Selectable Bluetooth Module Shield
Overview
This is redesigned arduino bluetooth shield based on our BC04-A module, arduino stackable, and use use arduino pin 3 and 4 as software serial port for communication.
Features
- Master/Slave selectable, based on BC04-B module
- LED indicator the bluetooth status, fast flashing means not paired yet, constant high status is paired. This is also connect to the arduino digital pin2
- Reset Button can clear the pairing status.
- A lot of standard 2.54 pins available for use.
Specifications
Settings :
- UART D0/D1 or D3/D4: Use either software serial port of arduino digital pin 3 (RX) and 4 (TX), or original UART port of digital pin 1(TX) and 0 (RX)
- Output/Arduino: Connect the uart of the bluetooth module to either external serial pins or to the arduino board.
- 5V/3V3 Switch: Set the UART logic power level, either 5V or 3V3, keep it at 5V to give the UART pins better power level protection.
Downloads
Additional Information
| Device | Shield |
| Type | BC04-B | Master Slave | Selectable | Bluetooth | 5V/3.3V |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.6 ★★★★★
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Product Reviews
★★★★★ 4
Easy to install, extremely crisp and bright
Size: H7
My H7 Termitor Headlights are wonderful for my 2014 VW Jetta SE 1.8l turbo. Extremely bright and super easy to install since they have the exact fitting as the factory bulbs. Only thing I would have done differently is to use the adapter to maintain steady light. Whenever I'm in gear or roll the windows up or down I can see the lights dim and after I drive for a while they aren't as bright as when I first started the car. Otherwise they are great, very bright, no warm up time, and clean crisp light. They're even brighter than my factory brights (which I still have installed with the factory bulbs, can't even tell they're on with these!)
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Retainer clips
Style: 121PCS Clips with Tool for Nissan/Infiniti
Worked very well for my car. I was able to select the right ones to snap my liner under the car back up
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Reviewed in the United States on May 29, 2026
★★★★★ 5
Various types of clips was handy
Style: 121PCS Clips with Tool for Honda/Acura
Variety of clips was nice and the tool worked great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Worked perfect!
Style: 121PCS Clips with Tool for Nissan/Infiniti
Worked perfect to hang large bulb outdoor string lights.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Worked great
Style: 121PCS Clips with Tool for Honda/Acura
Worked great
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Reviewed in the United States on May 26, 2026