蜂巢式物聯網開發套件整合eSIM模組

作者 : STMicroelectronics

意法半導體(STMicroelectronics,ST)先前推出的B-L462E-CELL1探索套件整合了開發蜂巢式物聯網裝置所需的關鍵軟硬體模組。

關鍵軟硬體模組包括經GSMA認證的嵌入式SIM (eSIM),有助於快速開發注重效能的蜂巢式物聯網裝置。其可透過LTE-Cat M和NB-IoT網路連線,是嵌入式開發者和物聯網愛好者的理想選擇,且售價也在OEM和大眾市場客戶可接受之範圍內。

該套件開發板整合一個村田製作所開發的尺寸極小多合一蜂巢式通訊模組。該模組內建意法半導體的STM32L462超低功耗微控制器、GSMA認證的eSIM模組ST4SIM-200M和LTE-M/NB-IoT晶片組。其中,eSIM模組預裝意法半導體授權合作夥伴Truphone的引導程式連線設定檔。該套件具有開箱即用的資料連線功能,並支援遠端SIM卡開通置備和SIM卡無線更新功能。使用者用USB與電源線連或在連線器中裝入三個AAA電池即可啟動開發板,然後再啟動eSIM卡,將板卡連線到蜂巢式行動網路,就可開始開發應用專案。

基於Arm SecurCore SC300的ST4SIM-200M eSIM方案(經CC EAL5+,以及GSMA SGP.02 v3.2認證)的B-L462E-CELL1套件主要用於防禦蜂巢式連線攻擊,ST4SIM可以建立起一個Root-of-Trust小程式來提升網路攻擊防禦功能。

為簡化動作感測和環境監測解決方案的開發運作,板上還整合了一組感測器,包括意法半導體的LSM303AGR加速度計-磁力計、HTS221相對濕度和溫度感測器,以及LPS22HH壓力感測器。此外,板上還有一個0.96吋的OLED顯示螢幕、數個LED指示燈和一個USB介面。

STM32Cube軟體擴充包X-CUBE-CELLULAR可驅動這款探索套件,並支援Berkeley (BSD)通訊端應用程式設計發展介面(Application Programming Interface,API)。透過BSD的標準化網際網路通訊功能,使用者可以將產品原型連網,而無需開發AT指令驅動程式控制數據機。X-CUBE-CELLULAR包含示範程式和蜂巢式框架模組的原始程式碼,利用功能強大、免費的STM32Cube軟體工具集導入和配置擴充套裝軟體非常簡易。

意法半導體的STM32L4採用超低功耗技術,在STOP 2模式下功耗約2µA,蜂巢式晶片組省電模式(Power Saving Mode,PSM)功耗不到1.4µA。B-L462E-CELL1探索套件為開發人員開發電池續航長達10年的物聯網裝置提供了一個平台,其適用於智慧城市、智慧工業、智慧農業、智慧電表和穿戴式裝置。ST4SIM-200M的製造和客製化都是在意法半導體的GSMA認證工廠進行,並預裝嵌入式SIM卡配置資料,可在160多個國家/地區簡化連網。

 

 

 

 

 

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