juhapark21/paddlecardA badge for Fallout that also acts as a CW paddle!
FalloutPCB is an open-source printed circuit board by juhapark21, from the juhapark21/paddlecard repository on GitHub. It is a 2-layer board of 88.5 × 49.1 mm with 10 parts on 34 nets, routed with 55 tracks and 13 vias.
It is built around the ULN2003ADRG. It belongs with the ESP32 boards of this library.
A badge for Fallout that also acts as a CW paddle!
https://github.com/user-attachments/assets/16b79e51-f1e2-474d-b4b4-8ff066ea9f76
Plug in a USB-C cable from any power source that can also charge phones (good rule of thumb; current usage is <100mA for those who want to use another source).
Warning: Powering the key from a portable charger/power bank will work, however most power banks will automatically turn off after less than a minute because the current draw of the key is so low. I recommend using a wall charger, a computer, or another source that doesn't have a minimum current draw to stay on.
Change the speed of the code by rotating the SPEED dial.
Change the pitch of the code by rotating the PITCH dial. The volume fluctuations are expected and are due to the specific buzzer's resonant frequency. The closer to the resonant frequency, the louder the buzzer.
Touch the "DIT" pad to send a series of short tones.
Touch the "DAH" pad on the other side to send a series of long tones.
Combine the usage of both pads to send morse code.
If you want help on how to properly use a paddle and send/receive morse code, look up "how to use CW paddle".
Note that squeeze/iambic function isn't fully supported yet.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | LOGO | LOGO | G***, G***, G*** |
| 1 | Buzzer | JLCImport:GMC25125YB-42R800 | BZ1 |
| 1 | DAH_PAD | ProjectSpecific:TOUCH_PAD | DAH |
| 1 | DIT_PAD | ProjectSpecific:TOUCH_PAD | DIT |
| 1 | PITCH_CTRL | JLCImport:RK09K1130A6S | RV2 |
| 1 | ULN2003ADR | JLCImport:ULN2003ADR | U3 |
| 1 | WPM_CTRL | JLCImport:RK09K1130A6S | RV1 |
| 1 | XIAO-ESP32-S3-DIP | ProjectSpecific:XIAO-ESP32S3-DIP | U1 |
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It measures 88.5 × 49.1 mm and has 2 copper layers, 1.6 mm thick.
10 parts, built around the ULN2003ADRG. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the juhapark21/paddlecard repository on GitHub, at the commit this page was made from: the board is pcb/FalloutPCB.kicad_pcb and its schematic pcb/FalloutPCB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask juhapark21 before reusing the design.
