
OpenAIO Whoop
OpenDrone-hw/OpenAIO-Whoop
Open-source 1S whoop AIO: flight controller, 4-channel brushless ESC, ExpressLRS receiver and analog VTX, 25.5x25.5 mm. Planned.

The SE5004L-R is a RF Amplifier made by Skyworks Solutions in a QFN-20-EP(4x4) package with 21 pins. -40℃~+85℃ 32dB 34dBm 3V~5.5V 5.15GHz~5.85GHz 600mA Built-in power detector、Bias control circuit、Temperature compensation QFN-20-EP(4x4) RF Amplifiers ROHS.
PCBKit's library has its KiCad symbol (RF:SE5004L, from KiCad's library) and its footprint (Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm, from KiCad's library), ready for a KiCad board. 1,263 are in stock at JLCPCB (part C210263). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | GND | Power in |
| 2 | GND | Passive |
| 3 | RFIN | Input |
| 4 | GND | Passive |
| 5 | VREF | Input |
| 6 | SP1 | Passive |
| 7 | SP2 | Passive |
| 8 | VCC2 | Power in |
| 9 | VCC3 | Power in |
| 10 | DET | Output |
| 11 | GND | Passive |
| 12 | GND | Passive |
| 13 | RFOUT | Output |
| 14 | GND | Passive |
| 15 | GND | Passive |
| 16 | GND | Passive |
| 17 | GND | Passive |
| 18 | VCC3 | Power in |
| 19 | VCC2 | Power in |
| 20 | VCC1 | Power in |
| 21 | GND | Passive |

OpenDrone-hw/OpenAIO-Whoop
Open-source 1S whoop AIO: flight controller, 4-channel brushless ESC, ExpressLRS receiver and analog VTX, 25.5x25.5 mm. Planned.
<iframe src="https://pcbkit.io/embed/parts/skyworks/SE5004L-R" title="SE5004L-R in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/skyworks/SE5004L-R.jpg" alt="SE5004L-R" width="1200" height="900">[](https://pcbkit.io/parts/skyworks/SE5004L-R)Yes. The symbol is RF:SE5004L and the footprint Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
QFN-20-EP(4x4), with 21 pins. Its footprint is drawn on this page.
Skyworks Solutions publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C210263, with 1,263 in stock; the sellers' links on this page open their listings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.