The electronic circuit is shown in the schematic diagram in Figure 4. The instrument consists of six printed circuit boards (PCB): 1 ESP32 (NodeMCU ESP32, SIMAC Electronics GmbH, Neukirchen-Vluyn, ...

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ESP32-S3-WROOM-1-N16R8产品详情： ESP32-S3 是一款集成 2.4 GHz Wi-Fi 和 Bluetooth 5 (LE) 的 MCU 芯片，支持远距离模式 (Long Range)。ESP32-S3 搭载 Xtensa® 32 位 LX7 双核处理器，主频高达 240 MHz，内置 512 KB SRAM (TCM)，具有 45 个可编程 GPIO ...