LoRa is connected with a common ground to the BME280. The 3.3V line from the sensor is powered by the 3.3V output from the LoRa module. SDA is connected to pin 15, and SCL to pin 13 https://www.tinytronics.nl/image/cache/catalog/products_2023/lilygo-ttgo-t3-lora32-868mhz-v1.6.1-esp32-600x600w.jpg. The BME280 and ENS160 sensors are connected in a daisy-chain configuration.
