Product Introduction
T-Beam V1.1 IPEX NEO-M8N GNSS Version, change GPS chip and LoRa antenna based on T-Beam V1.1, using Semtech NEO-M8N GNSS chip design, also support GPS Beidou GLONASS, stronger positioning signal, The positioning speed is faster; the LoRa antenna interface is changed from SMA to IPEX, which is more convenient to store.
Product upgrade changes:(Compared with V1.0）
< style="font-family:"Open Sans", Arial, Helvetica, sans-serif, Heiti;font-size:14px;color:rgb(0, 0, 0);box-sizing:content-box"> 1.Add reverse battery protection module
Product Features
ESP32
Lastest ESP32 Version: REV1
WIFI
Bluetooth
4MB Flash
8MB PSRAM
3D Antenna
LORA(SX1278,Sx1276)
Product Description
Working voltage: 1.8~3.7v
Acceptable current：10~14mA
Transmit current: 120mA@+20dBm
90mA@+17dBm
29mA@+13dBm
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
Highly configurable data packet handler
GPS
GPS modules NEO-M8N, 3V-5V power supply Universal
Destined module with ceramic antenna, signal super
Save the configuration parameter data EEPROM Down
With data backup battery
There are LED signal indicator
Default Baud Rate:9600
Power
Power Supply Input USB 5V/1A
Charging current 500mA
Battery Input 3.7-4.2V
Charge IC AXP192
Package:
1 X TTGO T-Beam ESP32
1 X Antenna(option for 433MHz,868MHz,915MHz,923MHz)
2 X Pin
3 X Screw Washer
Useful Link:
https://github.com/lyusupov/SoftRF/wiki/Prime-Edition-MkII
https://github.com/LilyGO/SoftRF
https://github.com/Xinyuan-LilyGO/LilyGO-T-Beam
