You can buy a small ESP32 microcontroller for a few dollars—less than a Starbucks coffee. When you combine it with a special LoRa radio, you can create a device that can send encrypted text messages ...

If you are interested in deploying LoRa — the low power long-range wireless technology — you might enjoy [Rui Santos’] project and video about using the ESP32 with the Arduino IDE to implement LoRa.

串口通讯的数据包由发送设备通过自身的TXD接口传输到接收设备的RXD接口。在串口通讯的协议层中，规定了数据包的内容，它由启始位、主体数据、校验位以及停止位组成，通讯双方的数据包格式要约定一致才能正常收发数据。 ESP32串口通信常用函数： ESP32开发 ...

It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for analog circuits, but can fall short with programmable logic. Tools like ...

Simon is a Computer Science BSc graduate who has been writing about technology since 2014, and using Windows machines since 3.1. After working for an indie game studio and acting as the family's go-to ...