Izixhobo ze-Intanethi yezinto (IoT) zineemfuno zamandla aphezulu. Ngokomzekelo, banokufuna ukuqokelela amandla kwiipaneli zelanga ngelixa besebenzisa umbane omncinci kangangoko kunokwenzeka, okanye banokudinga ukulawula imithwalo yamandla aphezulu. Injineli ye-OBJEX yaseNtaliyane uSalvatore Raccardi uye walungisa ezi mfuno kunye nebhodi yophuhliso ye-OBJEX Link S3LW IoT. Isixhobo sisebenzisa imodyuli ye-S3LW ephuhliswe ngu-OBJEX kwaye iyakwazi ukunxibelelana nge-Wi-Fi, i-Bluetooth 5, i-LoRa kunye ne-LoRaWAN protocol. Ikwagxininisa kakhulu ekusebenziseni amandla ngendlela eyiyo.
I-OBJEX Link S3LW yibhodi yophuhliso ye-IoT ephezulu esekelwe kwi-custom system-on-module (SoM). Imodyuli ye-S3LW inikeza i-Wi-Fi, i-Bluetooth 5, i-LoRa kunye ne-LoRaWAN uxhumano. Ibhodi yophuhliso inamachweba angama-33 e-GPIO kwaye ixhasa i-microcontroller interfaces eziqhelekileyo ezifana ne-I2C, i-I2S, i-SPI, i-UART kunye ne-USB. Izixhumi ezine ze-STEMMA ezine-pin zivumela ii-PCBs ukuba zifikelele kwi-ecosystem ehlala ikhula ye-sensors, actuators kunye neziboniso.
Phawula. URaccardi uphuhlise i-OBJEX Link kwiminyaka eliqela eyadlulayo. Imveliso inegama elifanayo nale bhodi entsha, kodwa kukho ukungafani. Ngokomzekelo, isebenzisa i-microcontroller ye-ESP32-PICO-D4 endaweni ye-SoM ezinikeleyo, kodwa ayinayo ukusebenza kwe-LoRa. Ukongeza, ijolise ekubeni yibhodi encinci enokuphinda isetyenziswe kunye nebhodi egcwele ngokupheleleyo yophuhliso lwesicelo se-IoT.
I-OBJEX ibonelela ngeemodyuli ze-S3 kunye ne-S3LW. I-S3LW yimodyuli egcweleyo exhotyiswe nge-ESP32-S3FN8 microcontroller, i-RTC, i-SX1262 kunye neesekethe ezinxulumene namandla. I-ESP32 inikezela nge-Wi-Fi kunye neBluetooth amandla, ngelixa i-S3 ixhasa ukuhambelana kwe-LoRa kunye ne-LoRaWAN. Imodyuli ye-S3 ayinayo i-hardware ye-LoRa, kodwa inezinye iibhloko kwi-S3LW.
I-OBJEX Link S3LW ibonisa amanyathelo athathwa yi-OBJEX ukuphumeza ukonga amandla aphezulu ngeemodyuli zayo ezizinikeleyo. Okokuqala, unomathotholo we-LoRa unolawulo olukhethekileyo lwe-voltage evumela ukuba ucime ngokupheleleyo unomathotholo xa umsebenzi weLoRa ungafuneki. Okulandelayo kuza isitshixo samandla, esivala ngokupheleleyo imodyuli eseleyo. Le latshi ayithathi ndawo ye-ESP32's indlela yobuthongo obunzulu, kodwa iyayincedisa.
Ekubeni i-S3LW inerediyo ezimbini ezisebenza kwiifrikhwensi ezahlukeneyo, kukho iindlela ezimbini ze-eriyali. I-ESP32 yi-eriyali chip edibanisa kwi-2.4 GHz Wi-Fi kunye neebhendi zeBluetooth. I-S3LW ine-50 ohm ye-U.Fl yokudibanisa i-eriyali ye-LoRA yangaphandle. Irediyo isebenza kuluhlu lwamaza ukusuka kwi-862 MHz ukuya kwi-928 MHz.
Amandla e-OBJEX Link S3LW anokuvela kwizibuko elixhasa i-USB-C Power Delivery (PD) okanye ukusuka kwibhloko ye-screw terminal eqhagamshelwe kwi-Vbus efanayo ne-USB-C yokudibanisa. Ngokusebenzisa umbane, ibhodi inokufikelela kwii-Volts ezingama-20, ii-Amps ezi-5. I-converter eyakhelwe-ngaphakathi ye-DC-DC ithoba amandla ombane ukuya kwi-5V kwaye inikezela ngoku ukuya kwi-2A kwiiperipherals ezixhunyiwe.
Ibhodi (kunye ne-SoM) iyahambelana neendawo ezahlukeneyo zokucwangcisa, okwenza ukuba ifaneleke phantse naluphi na uphuhliso lomsebenzi. Ngokomzekelo, ixhasa i-Espressif ESP-IDF, i-Arduino IDE, i-PlatformIO, i-MicroPython kunye ne-Rust.
Inkxaso ye-Cowin kwi-cusotm Wi-Fi, i-Bluetooth, i-LoRa, i-antenna yangaphakathi ye-IoT yangaphakathi, kunye nokubonelela ngengxelo epheleleyo yokuvavanya kuquka i-VSWR, i-Gain, i-Efficiency kunye ne-3D Radiation Pattern, nceda uqhagamshelane nathi ukuba unesicelo malunga ne-antenna ye-RF yeselula, i-antenna yeBluetooth ye-WiFi, I-CAT-M i-antenna, i-eriyali ye-LORA, i-Antenna ye-IOT.
Ixesha lokuposa: Oct-30-2024