据介绍，瑞芯微 RV1106 集成单核 ARM Cortex-A7 CPU 与 RISC-V MCU，内置 0.5 TOPS 算力 ... 支持 BLE，并有预留 PoE 模块接口。 IT之家附产品详情如下： Luckfox ...

A fancier solution would implement any of the standard PoE protocols to do the work of negotiating a suitable voltage. Maybe this could be the high-tech, $5 solution featuring an MCU and a small PCB?