LILYGO Meshtastic T-Beam V1.1 18650 Battery Holder

This board is the best of both worlds as it includes both ESP and LoRa communication chips thus it can do IoT and the LoRa would give you the long-range ability for those projects that need to connect/communicate over a longer distance. The LoRa will give you line-of-sight communication between sensors over long distances.

ESP32

• Lastest ESP32 Version: REV1
• WIFI
• Bluetooth
• 4MB Flash
• 8MB PSRAM
• 3D Antenna

• Working voltage: 1.8~3.7v
• Acceptable current: 10~14mA
• Transmit current:
  120mA@+20dBm
  90mA@+17dBm
  29mA@+13dBm
   
  SPECIFICATIONS
• Operating frequency: 433/470MHz(433HMz version) /868M/915M(868MHz version)
• Transmit power: +20dBm
• Receive sensitivity:
  -139dBm@LoRa &62.5Khz&SF=12&146bps
  -136dBm@LoRa &125Khz&SF=12&293bps
  -118dBm@LoRa &125Khz&SF=6&9380bps
  -123dBm@FSK&5Khz&1.2Kbps
• Frequency error: +/-15KHz
• FIFO space: 64Byte
• Data rate:1.2K~300Kbps@FSK
  0.018K~37.5Kbps@LoRa
• Modulation Mode: FSK, GFSK, MSK, GMSK, LoRa TM, OOK
• Interface form: SPI
• Sleep current: 0.2uA@SLEEP, 1.5uA@IDLE
• Operating temperature: -40℃- +85℃
• Digital RSSI function
• Automatic frequency correction
• Automatic gain control
• Low voltage detection and temperature sensor
• Fast wake-up and frequency hopping
• The highly configurable data packet handler

• GPS modules NEO-6M, 3V-5V power supply Universal
• Destined module with ceramic antenna, signal super
• Save the configuration parameter data EEPROM Down
• With data backup battery
• There is an LED signal indicator
• Default Baud Rate: 9600

• Power Supply Input USB 5V/1A
• Charging current 500mA
• Battery Input  3.7-4.2V
• Charge IC AXP192