Hydra Base
Hydra-Designs·project-hydra-meshtastic-pcb·Hydra Base/Hydra Base.kicad_pcb
About the Hydra Base PCB
Hydra Base is an open source PCB design by Hydra-Designs, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 72.4 × 83.8 mm, with 8 components from 6 distinct parts.
By type, the board carries 5 connectors, 2 resistors and 1 battery holder.
It belongs with the rf & radio and power & battery designs in this gallery.
From the project
A minimalist 1W LoRA PCB design for Meshtastic-device firmware
A minimalist PCB design built around the Ebyte E22-900M30S 30dbm (1 watt) LoRA radio and the ESP32-WROOM-32U cpu compatible with the Meshtastic-device firmware.
Please contribute using Github Flow. Create a branch, add commits, and open a pull request.
Meshtastic® is a registered trademark of Meshtastic LLC. Meshtastic software components are released under various licenses, see github for details. No warranty is provided - use at your own risk.

Hydra Base bill of materials (BOM)
8 components, 6 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J1, J5 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Altech_AK300-2_P5.00mm | J2 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | Conn_01x02 | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J4 |
| 1 | Battery | BatteryHolder_MPD_BH-18650-PC2 | BT1 |
| 2 | R | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2 |
Hydra Base design files
The KiCad project lives in the Hydra-Designs/project-hydra-meshtastic-pcb repository on GitHub; these links point at the commit this page was built from.
Hydra Base: common questions
How big is the Hydra Base PCB?
The Hydra Base measures 72.4 × 83.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Hydra Base?
8 components, from 6 distinct parts. The full bill of materials is listed on this page.
Where can I download the Hydra Base design files?
From the Hydra-Designs/project-hydra-meshtastic-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Hydra Base design in my own project?
Yes, under the terms of its GPL-3.0 license, which Hydra-Designs chose for the repository.
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