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2.4 GHz 4dBi PCB antenna
Compact 2.4 GHz 4dBi PCB antenna for Wi-Fi, Bluetooth, Zigbee, and ESP modules—ideal for IoT, wireless, and embedded applications.
The 2.4 GHz 4dBi PCB Antenna is a compact, high-efficiency antenna designed for wireless communication in the 2.4 GHz ISM band. With a 4dBi gain, it provides improved signal strength and stable performance for short- to medium-range wireless applications.
This antenna is optimized for use with Wi-Fi, Bluetooth, Zigbee, ESP8266, ESP32, NRF24L01, and other 2.4 GHz RF modules. Its PCB-mounted design allows easy integration directly onto development boards or custom PCBs, making it ideal for space-constrained projects.
Featuring low VSWR and efficient radiation characteristics, the antenna ensures reliable data transmission while maintaining a compact footprint—perfect for IoT devices, smart home systems, wearables, and embedded wireless products.

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- Shield type:Â Arduino Nano
- Firmware:Â GRBL
- Modular stepper motor drivers:Â 3
- Limit switches:Â 6
- Micro-stepping:Â 1/16
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- Uses removable Pololu A4988 compatible stepper drivers. (A4988, DRV8825, and others) (Not Included)
- Jumpers to set the Micro-Stepping for the stepper drivers. (Some drivers like the DRV8825 can do up to 1/32 micro-stepping )
- Compact design.
- Runs on 12-36V DC. (At the moment only the Pololu DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
- Please note that this is an unassembled kit and needs soldering.
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- Rated maximum output: ± 4.5A, 40V, Peak 5A, low output impedance, source 0.5?,
- the receiving end of 0.4?, low voltage shutdown, thermal parking and circulation.
- circuit protection. After I design, you can set the current output of 0.5A 1A 1.8A 2.5A.
- 3.3A 4A 4.5A to accommodate more and different motor Current.
- The drive is suitable software mach2, mach3, (mach3 have support WIN7 system), KCAM4 like.

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