T-Beam Upgrade ESP32 WiFi ​​Wireless Bluetooth Module LORA GPS NEO-M8N Module - Black

Product upgrade section:
1. Route pin GPIO34 is replaced with GPIO15
2. Charging IC (TP5400) Replace with power management AXP192 (only 868MHz version replacement)
3. GPS TX, RX Foot Replacement
4. The power switch is removed, replaced with a button switch
5. Sleep current drops to
6. GPS battery replacement

Parameters:
Product function: ESP32
ESP32 version: REV1
Wireless Internet Bluetooth 4MB flash 4MB PSRAM3D antenna LORA
product description
Working voltage: 1.8 ~ 3.7V
Acceptable current: 10 ~ 14mA
Emission current: 120mA + 20dBm; 90 mA + 17DBM; 29 mAm + 13dBm
Working frequency: 433 / 470MHz (433HMZ version) / 868m / 915m (868MHz version)
Transmit power: + 20dBm
Receive sensitivity: -139dBM LORA and 62.5kHz & sf = 12 and 146bps
-136DBM LORA and 125KHz & SF = 12 & 293bps
-118dBM Lora & 125kHz & sf = 6 & 9380bps
-123dBMFSK & 5KHz & 1.2kbps
Frequency error: +/- 15kHz
FIFO Space: 64byte
Data rate: 1.2K ~ 300kbps fsk; 0.018k ~ 37.5kbpslora
Modulation mode: FSK, GFSK, MSK, GMSK, LORA TM, OOK
Interface form: SPI
Sleep current: 0.2UASLEP; 1.5UAIDLE
Work temperature: -40 °C - 85 °C
Digital RSSI function
Automatic frequency correction
Automatic gain control
Low voltage and temperature sensor
Quick wake up and frequency hopping
Highly configurable packet handler
GPS module NEO-M8N, 3V-5V power supply universal
Specified module, signal with ceramic antenna
Save Configuration Parameter Data EEPROM DOWN
Tape data backup battery
LED signal indicator
Default baud rate: 9600