Unique product that combines universal transformer, preamplifier, simply Low Pass Filter, Bias Tee, front-end protection and common-mode output filter.
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This is LILYGO TTGO T-Beam ver. 1.1 module with ESP32, LoRa 433 MHz or 868 MHz RF module, WiFi, Bluetooth, GPS, 18650 battery holder and I2C OLED display.
This is LILYGO TTGO LORA32 ver. 1.6 module with ESP32, LoRa 433 MHz or 868 MHz RF module, WiFi, Bluetooth and I2C OLED display.
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