LilyGo
T-Impulse S76G
The T-Impulse S76G is a tracker LoRa device by LilyGo, based on the STM32L073 microcontroller and the SX1276 LoRa transceiver. It transmits at up to 20 dBm with -137 dBm receive sensitivity and draws about 5 mA on average. It is compatible with Meshtastic and LoRaWAN.
Compatible with:MeshtasticLoRaWAN
Specifications
- Manufacturer
- LilyGo
- Type
- tracker
- Microcontroller
- STM32L073
- LoRa transceiver
- SX1276
- Max TX power
- 20 dBm
- Sensitivity (SF12 BW125)
- -137 dBm
- Average draw
- ~5 mA
Estimated battery life
| Battery | Autonomy |
|---|---|
| 2,000 mAh | 16.7 days |
| 3,000 mAh | 25 days |
| 5,000 mAh | 41.7 days |
| 10,000 mAh | 83.3 days |
| 20,000 mAh | 166.7 days |
Theoretical range
| Antenna height | Range |
|---|---|
| 1.5 m | 10.1 km |
| 5 m | 14.3 km |
| 20 m | 23.5 km |
| 50 m | 34.2 km |
Line of sight at 915 MHz, stock 2.15 dBi antenna on both ends, receiver at 1.5 m. Range = min(FSPL, radio horizon).
Community builds with the T-Impulse S76G
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Have a T-Impulse S76G? Share your buildFrequently asked questions
How long does a T-Impulse S76G last on battery?
At about 5 mA average draw, a T-Impulse S76G runs roughly 25 days on a 3000 mAh 18650 cell and 83.3 days on a 10000 mAh pack. Real-world life depends on transmit duty cycle, screen and Bluetooth use.
What is the range of a T-Impulse S76G?
With the stock 2.15 dBi antenna at 5 m, the theoretical line-of-sight range is about 14.3 km. In practice terrain and obstacles reduce it; raising the antenna is the single most effective improvement.
Is the T-Impulse S76G good for a solar node?
Yes. Its low average draw (5 mA) makes it well suited to always-on, solar-powered relay nodes.