galvanic isolation between Arduino and connected RS485 bus; RS422 Mode (full duplex) and RS485 Mode (half duplex) RX and TX pin with restrictions freely selectable
Node 1 is the MAX485 RS-485 Module connected to your gateway. Node N is the MAX485 RS-485 Module connected to your last sensor of your network. Between node 1 and N you can add addtional nodes but you need to keep the bus structure. Important are the terminating resistors (1) and (2). They are R7 on the RS-485 module.
Mar 15, 2015 · I’m using 230/2 volt PT and 5/1 amp 15 VA CT to step down voltage and current respectively.and using two 8.2 ohms 2watt resistor in series across CT to get voltage drop corresponding current.this two parameters are fed to arduino analog pin A0 and A1 .so what will be the calibration values and phase sift emonlb.h related program.
Описание к видео Arduino USB-to-Serial Tutorial - Programming the Pro Mini Here I attempt to use 3 different USB to Serial modules to program a clone Arduino Pro Mini. The chips are the FTDI FT232RL, the Silicon Labs CP2102 and the Prolific Technologies PL2032HX.
RS485 is an industrial standard for long distance, anti-interference and reliable communication. So we create this RS485 Arduino shield, especially designed for the Arduino controller board. It converts UART/Serial protocol to RS485 protocol. This board allows Arduino access to industrial standard protocol easily.
This article is another step forward in learning more about Arduino. In our previous article, I have written in detail about blinking an LED using Arduino.We have demonstrated 5 simple led based projects using arduino, which will help you to learn its basic concepts.
Sep 18, 2018 · A small Arduino library that takes some of the tedium out of RS485 communication - madleech/Auto485. ... Arduino folder under libraries/RS485. ... program, included ...