Project Hydra Rev. 2.1

Community · Dev-board

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Price: N/A

Specifications

SpecificationValue
Product statusDIY design [1]
LoRa chipSX1262 [3]
ProcessorESP32 [2]
Radio power1000 mW (30 dBm) [3]
Frequency bands850–930 MHz [3]
GPSOptional (add-on) [1]
Display typeNone [1]
Display sizeNone
Display detailsOptional I²C OLED [1]
InputNone [2]
BatteryNo built-in battery [2]
Dedicated solar inputNo [2]
AntennaExternal [2]
Connector: IPEX/U.FL [2]
IP ratingUnknown
DimensionsUnknown
WeightUnknown

Firmware support

FirmwareSupportDetails
MeshtasticCommunity [4]
Details
Build target(s)
hydra
Minimum version
2.1.19.eb7025f

Confirm your exact device in the official flasher before choosing a build.

Meshtastic web flasher
MeshCoreUnsupported—
UMSHUnsupported [5]—

Build resources

Build it from the project documentation linked in Sources. Components and assembly are required.

Notes

Open PCB reference design requiring separately sourced ESP32 and Ebyte E22-900M30S modules and assembly. The Rev. 2.1 board has no installed cell or charging circuit; power and enclosure are builder-supplied. Designed by Hydra Designs community.

[1] [2] [3]

Sources

  1. Project Hydra repository and build instructions
  2. Project Hydra Rev. 2.1 schematic
  3. Ebyte E22-900M30S datasheet
  4. Meshtastic hardware API (supportLevel classification)
  5. UMSH hardware support list
  6. Project Hydra V2.1 public release documented

Last updated 2026-10-20