Hoʻohui ʻo Cowin Lora Antenna No ka OBJEX Link S3LW i ka Wi-Fi, Bluetooth a me LoRa ma kahi papa hoʻomohala IoT.

Loaʻa nā pono mana kiʻekiʻe o ka Internet of Things (IoT). No ka laʻana, pono paha lākou e hōʻiliʻili i ka ikehu mai nā panela lā me ka hoʻohana ʻana i ka uila liʻiliʻi e like me ka hiki, a i ʻole pono lākou e hoʻokele i nā ukana mana kiʻekiʻe. Ua ʻōlelo ʻo ʻenekinia OBJEX Italia ʻo Salvatore Raccardi i kēia mau pono me ka OBJEX Link S3LW IoT development board. Hoʻohana ka mea hana i ka module S3LW i hoʻomohala ʻia e OBJEX a hiki iā ia ke kamaʻilio ma o Wi-Fi, Bluetooth 5, LoRa a me LoRaWAN protocols. Hāʻawi ia i ka manaʻo nui i ka hoʻohana pono ʻana i ka ikehu.
ʻO OBJEX Link S3LW kahi papa hoʻomohala IoT kiʻekiʻe e pili ana i kahi ʻōnaehana maʻamau-on-module (SoM). Hāʻawi ka module S3LW i ka pilina Wi-Fi, Bluetooth 5, LoRa a me LoRaWAN. He 33 mau awa GPIO ka papa hoʻomohala a kākoʻo i nā pilina microcontroller maʻamau e like me I2C, I2S, SPI, UART a me USB. ʻO nā mea hoʻohui STEMMA ʻehā-pin e ʻae i nā PCB e komo i kahi kaiaola e hoʻonui mau ana o nā mea ʻike, nā mea hana a me nā hōʻike.
Nānā. Hoʻokumu ʻo Raccardi i ka OBJEX Link i kekahi mau makahiki i hala. He inoa like ka huahana me kēia papa hou, akā aia kekahi mau ʻokoʻa. No ka laʻana, hoʻohana ia i kahi microcontroller ESP32-PICO-D4 ma kahi o kahi SoM i hoʻolaʻa ʻia, akā ʻaʻohe ona hana LoRa. Eia kekahi, manaʻo ʻo ia ka papa liʻiliʻi loa e hoʻohana hou ʻia a me kahi papa piha piha no ka hoʻomohala noiʻi IoT.
Hāʻawi ʻo OBJEX i nā modula S3 a me S3LW. ʻO S3LW kahi module piha piha i hoʻolako ʻia me ka microcontroller ESP32-S3FN8, RTC, SX1262 a me nā kaapuni pili mana. Hāʻawi ka ESP32 i nā mana Wi-Fi a me Bluetooth, ʻoiai ke kākoʻo nei ka S3 iā LoRa a me LoRaWAN. ʻAʻole loaʻa i ka module S3 lako lako LoRa, akā aia nā poloka ʻē aʻe ma S3LW.
Hōʻike ʻo OBJEX Link S3LW i nā ʻanuʻu a OBJEX e hoʻokō ai i ka mālama ʻana i ka ikehu kiʻekiʻe me kāna mau modula i hoʻolaʻa ʻia. ʻO ka mea mua, loaʻa i ka lekiō LoRa kahi regulator voltage linear kūikawā e hiki ai iā ʻoe ke hoʻopau loa i ka lekiō ke koi ʻole ʻia ka hana LoRa. A laila hiki mai ka laka mana, kahi e hoʻopau loa ai i ke koena o ka lako o ka module. ʻAʻole hoʻololi kēia latch i ke ʻano hiamoe hohonu o ka ESP32, akā hoʻokō ia.
No ka mea he ʻelua lekiō o ka S3LW e hana ana ma nā alapine like ʻole, aia ʻelua ala antenna. ʻO ka ESP32 kahi puʻupuʻu antenna e hoʻopili ai i ka 2.4 GHz Wi-Fi a me nā pūʻulu Bluetooth. He 50 ohm U.Fl ka S3LW no ka antenna LoRA waho. Ke holo nei ka lekiō ma ka laina alapine mai 862 MHz a i 928 MHz.
Hiki ke loaʻa mai ka mana no ka OBJEX Link S3LW mai kahi awa e kākoʻo ana i ka USB-C Power Delivery (PD) a i ʻole mai kahi pahu pahu pahu i hoʻopili ʻia i ka Vbus like me ka mea hoʻohui USB-C. Ma o ka lako mana, hiki i ka papa ke komo i 20 Volts, 5 Amps. ʻO ka mea hoʻololi DC-DC i kūkulu ʻia e iho i lalo i ka volta a hiki i 5V a hāʻawi i kēia manawa a hiki i 2A i nā peripheral pili.
Ua kūpono ka papa (a me SoM) me nā ʻano kaiapuni hoʻolālā like ʻole, e kūpono ana ia no nā ʻano hana hoʻomohala. No ka laʻana, kākoʻo ia iā ESP-IDF, Arduino IDE, PlatformIO, MicroPython a me Rust.
Kākoʻo ʻo Cowin i ka cusotm Wi-Fi, Bluetooth, LoRa, IoT kūloko waho antenna, a hāʻawi i ka hōʻike hoʻāʻo piha me VSWR, Gain, Efficiency a me 3D Radiation Pattern, e ʻoluʻolu e kelepona iā mākou inā he noi kāu e pili ana i ka RF cellular antenna, WiFi Bluetooth antenna, CAT-M Antenna, LORA Antenna, IOT Antenna.