======  HARDWARE LORA ======

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

===== 📚 DOCUMENTATION =====

==== CARACTÉRISTIQUES ====

^   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 |


==== FRÉQUENCES ====
^ Région  ^ Fréquence (MHz) ^ Modèle ^
| EU433 | 433.175~434.665 | HTIT-WSL-LF  | 
| CN470 | 470~510 | HTIT-WSL-LF | 
| IN868 | 865~867 | HTIT-WSL-HF | 
| EU868 | 863~870 | HTIT-WSL-HF | 
| US915 | 902~928 | HTIT-WSL-HF | 
| AU915 | 915~928 | HTIT-WSL-HF | 
| KR920 | 920~923 | HTIT-WSL-HF | 
| AS923 | 920~925 | HTIT-WSL-HF | 

==== DATASHEET ====
  * [[https://heltec.org/project/wireless-stick-lite-v2/|HTIT-WSL_V3 Site Web 🇬🇧]]
  * {{:projets:meshtastic_node:hardware_lora:htit-wsl_v3_rev1.1_.pdf |HTIT-WSL_V3 Datasheet 🇬🇧}}

==== LOGICIELS ====
  * [[https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series|Heltec ESP32 Series Arduino Develop Environment ]]
  * {{ :projets:meshtastic_node:hardware_lora:htit-wsl_v3_hf.zip |Code et outils  /}}


==== SCHÉMAS ====

  * {{ :projets:meshtastic_node:hardware_lora:htit-wsl_v3_schematic_diagram.pdf |Schéma}}

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==== PHOTOS ====
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