Tutorials

RS-485 MODBUS Serial Communication using Arduino UNO as Slave Part 2

Modbus is a data communication protocol originally published by Modicon (now  Schneider Electric) in 1979 for use with its programmable logic controllers(PLCs). Modbus has become a de facto standard communication protocol and is now a commonly available means of connecting industrial electronic devices for data transmission. An important point to pay attention to is that […]

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Tutorials

Buying Guide: ProMax Metal Push Switch with Indication Lights

In every project we used to build, we have always neglected the switch selection and struggled to find the perfect switch for the application at the end of the project. We have now learned our lesson and realized the importance a switch plays in both the functionality and appearance of the final product/project. All the

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Tutorials

Using USB to RS485 Converters with Modbus Devices – Part 1

This is a two-part article that explains the step-by-step details of interfacing USB to RS485 Converters to Communicate with Modbus Devices. The first part explains the procedure to read and transmit RS485 data from using the converter and the second part of the article explains how to communicate with MODBUS devices. All the modules that

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Tutorials

Liquid Level Sensor Contact (Analog Output)

Optical liquid level sensors are solid-state liquid level sensors, meaning they have no moving parts to cause unreliability. They use infra-red light and can be used in environments where a traditional float switch would not be suitable to detect liquid levels. All the modules that you require to implement this project are available on our

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Tutorials

nRF52 Programming Tutorials – Part 4 Eddystone

From part 3 of the NRF Getting started article we learned about Controlling LEDs & Reading Switch Inputs, in part 4 of the NRF series we will learn about   Eddystone and how it transmits Eddystone packets. Eddystone is another new method of broadcasting Bluetooth Low Energy(BLE) data from beacons, created by Google. Eddystone is

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Tutorials

nRF52 Programming Tutorials – Part 3 Controlling LEDs & Reading Switch Inputs

From part 2 of the NRF Getting started article we learned about Nordic SDK, in part 3 of the NRF Getting started series we will learn about controlling LEDs and reading switch inputs. The NRF 52 DK has four buttons and four LEDs that are connected to dedicated I/Os on the nRF52832 chip. For both

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Tutorials

nRF52 Programming Tutorials – Part 2 Understanding Nordic SDK

In part 1 of this article, we discussed nrf52 and the IDE used for the development. In part 2 of the article, we will learn and understand about Nordic SDK. SDK (Software Development Kit) basically a toolkit that provides essential tools given by the author to develop software applications based on the developer’s choice. SDK

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Tutorials

nRF52 Programming Tutorials – Part 1 Getting Started

The nRF52 DK is the easiest way to get started with project development using the nRF5 series controller. Every BLE Chipset from Nordic comes with its own development kit – nRF51 DK, nRF52 DK and the nRF52840 DK. The code is compatible and the basic procedure for programming all these controllers is the same. These

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Tutorials

How to use MLX90614 IR Temperature Sensor Module with Arduino

Introduction: The MLX90614 is an Infra-Red temperature sensor for non contact temperature measurements. The temperature sensor comes factory calibrated with a digital PWM and SMBus (System Management Bus) output. Circuit: Connect the pins of MLX90614 with the following pins of Arduino UNO, as shown below. Arduino UNO MLX90614 3.3V VCC(Red) GND GND(Green) A4 SDA(Black) A5

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