DescriptionLILYGO® T‑Impulse LoRa Wrist­band S78G 433Mhz S76G 868Mhz LoW Pow­er Trans­ceiv­er GPS BEIDOU OLED STM32L073Z GNSS CXD5603GF Mod­uleThe LILYGO® T‑Impulse LoRa Wrist­band is a pro­gram­ma­ble wear­able device that com­bines a low-pow­er trans­ceiv­er, GPS mod­ule, and OLED dis­play. It is based on the STM32L073Z micro­con­troller and the CXD5603GF LoRa mod­ule.The wrist­band can be used to devel­op a vari­ety of appli­ca­tions, such as:Asset track­ingEnvi­ron­men­tal mon­i­tor­ingPer­son­al safe­ty devicesSports and fit­ness track­ersSmart home devicesThe T‑Impulse LoRa Wrist­band is pow­ered by a recharge­able lithi­um-ion bat­tery and can oper­ate for up to 10 days on a sin­gle charge. It is also water­proof and dust­proof, mak­ing it suit­able for use in out­door envi­ron­ments.SpecificationsMCUS78G =STM32L073Z LORA GNSS Mod­uleHost Inter­facesUARTFlash192kbSRAM20kbLORA fre­quen­cy band433Mhz / 868Mhz / 915MhzGNSS fre­quen­cy band GPS / GLONASS / BEIDOUOnboard func­tionsBat­tery pow­er detec­tion, sil­i­cone strapSX1278 Low Pow­er LORA Trans­ceiv­erPre­am­ble detec­tion High sen­si­tiv­i­ty-137 dbmPro­gram­ma­ble bit rate up to 37500 bpsCXD5603GF ultra-low pow­er GNSS mod­uleUl­tra-low pow­erSup­ports SBAS / QZSS pro­to­colTouch but­tonTTP223Dis­play type OLED SSD1306Bat­tery Capac­i­ty200mahPin Diagram and More Details Packing ListResourcesWiki PageGitHubA Pre-Release of Soft­RF Firmware Bina­ry (DFU File) for T‑Impulse (It can be down­loaded to the devices)