LORA APRS – iGate & Tracker Configuration & Test

6 Januari 2022 59 Dilihat

Here we take a look at the Lora APRS project using the TTGO Lora Boards

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LORA Features:
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&1.2KbpsFrequency error: +/-15KHzFIFO space: 64Byte

Data rate: 1.2K~300Kbps@FSK, 0.018K~37.5Kbps@LoRa

Modulation Mode: FSK,GFSK,MSK,GMSK,LoRa TM, OOKInterface form: SPISleep current: 0.2uA@SLEEP, 1.5uA@IDLE

Operating temperature: -40℃- +85℃

Digital RSSI functionAutomatic frequency correctionAutomatic gain control Low voltage detection Fast wake-up and frequency hoppingHighly configurable data packet handler

GPS:
GPS modules NEO-6M, 3V-5V power supply UniversalDestined module with ceramic antenna, signal superSave the configuration parameter data EEPROM DownWith data backup batteryThere are LED signal indicatorDefault Baud Rate: 9600

Power:
TP54001A Battery ManagementLED indicator: There are 4 LEDs show the battery status in real time.USB: CP2104-GMR (CZ/UK warehouse)Pre-Flash Firmware: -SoftRF V4.0

US$33.99

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