 HARDWARE LORA

Le choix s'est porté sur les Heltec Wireless Stick Lite V3 en 433 et 868 MHz (HTIT-WSL_V3)

📚 DOCUMENTATION

Parameters	Description
Master Chip	ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor)
LoRa Chipset	SX1262
USB to Serial Chip	CP2102
Frequency	433~510MHz, 863~928MHz
Max. TX Power	21dB ± 1dB
Max. Receiving sensitivity	-134dBm
Wi-Fi	802.11 b/g/n, up to 150Mbps
Bluetooth LE	Bluetooth 5, Bluetooth mesh
Hardware Resource	7 × ADC1 + 9 × ADC2, 8 × Touch, 3 × UART, 2 × I2C, 2 × SPI
Memory	384KB ROM, 512KB SRAM, 16KB RTC SRAM, 8MB SiP Flash
Battery	3.7V lithium battery power supply and charging
Operating temperature	-20°C ~ 70°C
Dimensions	58.08 × 22.6 × 8.2 mm
Interfaces	Type-C USB, 2×1.25 lithium battery interface, LoRa ANT (IPEX1.0), 2.4G ANT (IPEX1.0), 2×20×2.54 Header Pin