Introduction:

T3S3 is a new version of the LoRa series (formerly LoRa32 series ), which carries the SX1280 LoRa module, supports the LoRa 2.4G frequency band, which supports global use, and is also equipped with the ESP32 main control chip, which supports TF cards.

Github: More information 

It is recommended to control the output power of the SX1280 chip between 2-5 dBm when using the SX1280 PA module, to ensure that the entire module outputs a power of 20 dBm.If the output power of the SX1280 chip is higher than 5 dBm, it will exceed the maximum allowable input for the FEM chip and cause damage.However, if the output power is lower than 2 dBm, the module's output power will still be within 20 dBm.Therefore, the output power setting of the SX1280 chip must be carefully controlled and not exceed 2-5 dBm to avoid damaging the FEM chip.Setting the output power to 3 dBm will ensure an output power of 20 dBm.

Specification:

MCU: ESP32S3 Flash: 4MB PSRAM: 2MBCommunication protocol: Wi-Fi + Bluetooth 5.0 + BLE Bluetooth Low EnergyOnboard functions: reset + BOOT button, support TF card, built-in/external antenna switchablePower supply mode: support USB power supply / 3.7V lithium battery power supply, battery power switchScreen: 0.96 inches SSD1306 Driver I2C OLEDResolution: 128x64 I2C Interface: SDA-IO18 SCL-IO17

Package includes:

1 X T3S3

2 X 2.54mm Male PIN (1*13P)

1 X Battery Cable1 X LoRa Antenna (optional)