Product Features
ESP32
Lastest ESP32 Version: REV1
WIFI
Bluetooth
8MB PSRAM
4MB Flash
3D Antenna
LORA
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-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 are LED signal indicator
Default Baud Rate: 9600
Power
TP5400
1A Battery Management
LED indicator: There are 4 LEDs show the battery status in real time.
USB
CP2104-GMR
Pre-Flash Firmware
-SoftRF V4.0
Product Upgrade Content
1. Pin GPIO34 pin is replaced with GPIO35
2. Replace the charging IC (TP5400) with the power management AXP192
3.GPS TX, RX pin replacement
4. Power on and remove, replace with button to open
5. Reduced sleep current
6.GPS battery replacement
7.Add reverse battery protection module
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