T-LoRa T3-S3 (LR1121)

LILYGO · Dev-board

Compare with other devices

Price: $19.34[2]

Specifications

SpecificationValue
Product statusActive [2]
LoRa chipLR1121 [1]
ProcessorESP32-S3 [1]
Radio powerUnknown
Frequency bands868 MHz, 915 MHz, 2.4 GHz [1]
GPSNot supported [1]
Display typeOLED [1]
Display size0.96 in [1]
Display details0.96-inch 128 × 64 SSD1306 OLED [1]
InputButtons [12]
BatteryNo built-in battery [1]
Dedicated solar inputBuilt in [3]
AntennaExternal [1]
Connector: SMA [1]
IP ratingUnknown
Dimensions66 × 36 × 14 mm [1]
WeightUnknown

Firmware support

FirmwareSupportDetails
MeshtasticOfficial [5]
Details
Build target(s)
tlora-t3s3-v1
Minimum version
2.0.10.e09b12c

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

Meshtastic web flasher
MeshCoreUnsupported—
UMSHUnsupported [9]—

Where to buy

Vendor / configurationPriceBased inShips from
LILYGO
400–520 MHz / 2.4 GHz$19.34
Observed 2026-10-19
🇨🇳🇨🇳🇺🇸🇨🇦🇪🇺
830–940 MHz / 2.4 GHzFrom $23.98
Observed 2026-10-19
🇨🇳🇨🇳🇺🇸🇨🇦🇪🇺

Notes

Select the matching regional frequency when ordering; this retail family is offered with multiple distinct LoRa radio configurations.

[2]

Sources

  1. LILYGO T3-S3 V1.3 hardware guide
  2. LILYGO T3-S3 V1.3 current radio options
  3. LILYGO SX1262 T3-S3 hardware/power guide
  4. Meshtastic LoRa32 T3-S3 radio variants
  5. Meshtastic officially supported device directory
  6. MeshCore complete official flasher catalog
  7. MeshCore exact T3-S3 SX126x build definition
  8. MeshCore exact T3-S3 SX127x build definition
  9. UMSH hardware support list
  10. LILYGO T3-S3 LR1121 exact-product version history
  11. LILYGO T3-S3 LR1121 current product variants
  12. Meshtastic firmware GPIO0 user-button mapping

Last updated 2026-10-20