Basic Modbus RTU Master RS485 Test with ESP32 + XY-K485 + PZEM-016 (without libraries)

In this opportunity we will carry out tests and explanation of the Modbus RTU protocol implemented in ESP32 requesting data from the Single-phase consumption meter PZEM-016. The intent of this tutorial is: 1. Explain in a simple way the creation and operation of an industrial protocol, in this case the Modbus RTU protocol used and…

Review Dragino LoRaWAN RS485 to LoRaWAN RS485-LN Converter #8

I present the Dragino RS485-LN is an RS485 to LoRaWAN converter, a few months ago I ordered a couple of modules for testing. This converter would allow monitoring and controlling devices over long distances, adding the versatility of the RS485. Characteristics LoRaWAN Class A and Class C protocol (default Class C) Frequency bands: CN470 /…