Ultra-low-power Sigfox IoT modules offer dual RF connectivity
STMicroelectronics and Jorjin Technologies have announced that the dual-radio modules that combine Sigfox wireless-network technology with Bluetooth low energy (BLE) have now been certified.
Jorjin’s WS211x Sigfox/BLE modules are based on ST’s BlueNRG-1 BLE SoC and the S2-LP sub-1GHz RF transceiver to target coin-cell battery or energy-harvesting applications. The programmable devices use the ST BLE SoC’s Arm Cortex-M0 to act as independent connectivity IoT nodes. BLE connectivity enhances Sigfox’ low-power wide-area network (LPWAN) for IoT applications by allowing functionality, such as firmware update over-the-air. Using Sigfox in combination with BLE also allows settings modification during installation or maintenance.
An evaluation board for WS211x modules uses the Arduino interface simplifies development and is compatible with ST’s Arduino shield boards featuring MEMS motion sensors, environmental sensors, or Time-of-Flight (ToF) ranging sensors. An SDK from Jorjin enables application WS211x development applications with ST’s sensor shield boards, as well as an AT command list to test the modules’ BLE and Sigfox functions.