Jul 3, 2023 · If the flow meter is sending data using the signal levels of RS232 or RS485, then you need the appropriate RS232 or RS485 adapter module at the Arduino, to convert the signal levels to 0-5V UART/TTL.

Apr 21, 2015 · I have four flow metres designed using arduino which is placed at different locations connected using RS 485, and at one location I have connected master rs485 to pc, where I would be able to read the values of all four flow metres, in Serial monitor. Code for flow metres, // litre/minute of flow.

We can connect a flowmeter to a processor like Arduino to obtain the sensor’s measurement. The name of the flowmeter comes from the term flow rate, which is the relationship between volume and time. The units in the international system are m^3/s, with other common units being l/s …

In this tutorial, we will discuss how to interface Arduino (as master) to any Modbus RTU (RS485) based sensor (as a slave) using Arduino IDE. We will create an example project by interfacing an RS485 Modbus protocol-based energy meter (DDM18SD) using MAX485 (TTL to RS485) module and collect current, voltage, and frequency data from it.

FlowMeter is an Arduino library that provides calibrated flow and volume measurement with flow sensors. You can use it to count flow and volume of liquids and gases (although the documentation focuses on applications using liquids) and can support multiple flow sensors at …

Jun 9, 2016 · In this tutorial we are designing flow meter using arduino, basically we use arduino boot loader controller on our custom made PCB. A flow meter is a device used to measure the flow rate or quantity of a gas or liquid moving through a pipe.

Sep 5, 2020 · I have an RS485 data coming from a DPC mass flow controller by AALBORG Instruments. I want to read the data in my Arduino. I'm using an RS485 to UART TTL converter (MAX485) to communicate with the flow controller.

In this tutorial, we will explain how to communicate between two Arduino boards with the help of the RS485 serial data communication protocol. Arduino doesn’t have any peripherals for RS485 communication. We will use an RS485-based sensor module called MAX485 for communication between two Arduino boards.

May 5, 2004 · Water flow sensors are available in different flow rate spec. based on the flow in the pipeline(lit/sec) , suitable sensor can be selected. bare sensors give o/p in pulses. a separate controller to count the pulse and interpretation is necessary. then finally rs485 conversion. sensor+controller+rs485 interface ---the reqd units.

Nov 15, 2024 · In this article, we will see how RS485 communication between multiple Arduinos can be implemented using modules based on the MAX485 chip, a chip that converts TTL signals (from Arduino) to RS485 and vice versa.