Quick Links

Introduction

The Arduino Serial Monitor, baud rates, serial libraries, and more.

Arduino Serial Commands

All the various commands explained.

Serial Libraries Compared

A Look at the common serial libraries

Serial Data

What to consider when using serial data.

Getting Started With Serial Communication

How to use simple serial commands to remote control another Arduino.

ASCII Data and Using Markers To Separate Data

A look at a different techniques for sending complex data and commands.

Serial UART

A comprehensive look at what UART is.

Introduction and Set Up

Description

Press For On, Release For Off

As simple as it gets

Toggle Switch

Press to turn on. Press again to turn off.

Start And Stop an Action Using a Push Button Switch

Press the button switch to start an LED flashing. Uses the technique knows as Blink Without Delay

Multiple States From a Single Push Button Switch

Control 3 LEDs with a single button switch.

Two Switches: One for On, One For Off

Now that we have different techniques using a single push button switch let’s look at using a couple of switches, one for on and one for off.

Start a Timer

Push to start. Use a timer to auto off.

Time How Long A button Switch Is Pressed

Ever wanted to know how long a button switch was pressed for? Yes, then you are in luck.

Short Press. Long Press

A quick guide showing how to detect short and long presses.

Switching High Voltages With An Arduino Using A Transistor

Arduino with HD44780 based Character LCDs

Arduino with Optocouplers

Arduino on a breadboard

Build your own Arduino on a breadboard.

Arduino Nano as an ISP Programmer

Use an Arduino Nano to program a ATmega328P chip

Arduino / ATmega 328P Fuse Settings

Fuse bytes are special settings that can be used to change how the ATmega chips operate.

Arduino and Visual Basic Part 1
Send data from the Arduino

The first example is fairly simple, data is sent from the Arduino and displayed in a Visual Basic app.

Arduino and Visual Basic Part 2
Send more data.

Add a couple of physical controls, a push button switch and a potentiometer, and display the values in the VB app.

Arduino and Visual Basic Part 3
Send and receive between an Arduino and Visual Basic

Spice things up with more complex commands and 2-way communication.

Simple Serial Monitor

A more advanced example of using a serial port in Visual Basic.NET

Bluetooth Modules

A look at various different Bluetooth modules

Serial Bluetooth Terminal

Easy to use Android Bluetooth serial app. Great for testing Bluetooth modules.

Simple Serial Monitor

A replacement serial monitor that is useful when talking to Bluetooth modules via serial UART

The Complete Guide To The HC-06

Exactly what it says on the tin.

JDY-31

A simple HC-06 replacement

HM-10 Introduction

Full introduction and getting started guide to the HM-10

Use A BLE Scanner To Send And Receive Data To A HM-10

Use An Arduino To Talk to the HM-10

Here we try talking to a HM-10 and out some of the more common AT commands

HM-10 As A iBeacon

What is an iBeacon? Find out here.

HM-10: Adding a Custom Characteristic

Add a second write only characteristic using the “AT+FFE2” command.

Arduino to Arduino Communication Using HM-10s

HM-10 Stand-Alone Remote Light Sensor

An example on using the HM-10 built in ADC.

HM-10 Programmable Pins

Remotely control the programmable pins on the HM-10

HM-10: Updating The Firmware

Update the firmware using older firmware (before V700)

Arduino, HM-10 and App Inventor 2

Introduction to using the HM-10 with App Inventor 2.

Arduino, HM-10 and App Inventor 2: Adding a slider

I was asked about adding a slider so here it is.

RN4870/1 Bluetooth Module

A comprehensive introduction to the RN4870/1 modules