TTGO T-Beamv1.0 ESP32 Chipset Bluetooth WiFi Module 923MHz LoRa NEO-6M GPS Module with SMA Antenna, Upgraded Version

About The Product 1. Working voltage: 1.8~13.7V 2. Acceptable current: 10~114mA 3. Emission current: - 120mA at + 20dBm - 90 mA lies at +17dBm - 29mA at +13dBm 4. Working frequency: 923MHz 5. Transmitting power: + 20dBm 6. Receiving sensitivity: - 139dBm lies at LoRa & 62.5Khz & SF = 12 & 146bps - 136dBm lies at LoRa & 125Khz & SF = 12 & 293bps - 118dBm lies at LoRa & 125Khz & SF = 6 & 9380bps - 123dBm lies at FSK & 5Khz & 1.2Kbps 7. Frequency error: +/- 15KHz 8. FIFO space: 64Byte 9. Data rate: -1.2K~1300Kbps at FSK -0.018K~37.5Kbps at LoRa 10. Modulation mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK 11. Interface form: SPI 12. Sleep current: - 0.2uA SLEEP - 1.5uA IDLE 13. Working temperature: -40 degrees Celsius-+ 85 degrees Celsius 14. Digital RSSI function 15. Automatic frequency correction 16. Automatic gain control 17. Low voltage detection and temperature sensor 18. Fast wake-up and frequency hopping 19. Highly configurable packet handler 20. Global Positioning System 21. GPS module NEO-6M, 3V-5V power supply universal 22. Designated module with ceramic antenna, super signal 23. Save configuration parameter data EEPROM Down 24. Battery with data backup 25. LED signal indicator 26. Default baud rate: 9600 27. Power: TP5400, 1A battery management 28. LED indicator 29. CP2104-GMR 30. Pre-flash firmware: SoftRF V4.0 This product is based on LoRa radio frequency, 868MHz (common in North America), 915MHz (common in Europe) and 433MHz (common in Asia Pacific) Upgraded Version 1. Replace the pin GPIO34 of the header with GPIO15 2. Replace the charging IC (TP5400) with the power management AXP192 3. Replace the TX and RX pins of GPS 4. Remove the power switch and replace it with a key switch 5. Sleep current is minimized 6. GPS battery replacement