Identifying your Arduino board from code

For my IoT project I needed to write code slightly differently for specific Arduino boards. E.g. for Arduino UNO I wanted to use Serial to talk to ESP8266 and for Arduino Mega wanted to use Serial1. So basically I wanted to use Board specific #defines #ifdef MEGA #define SERIAL Serial1 #elif UNO #define SERIAL Serial…

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ESP8266 Wifi With Arduino Uno and Nano

If you are trying to add Wifi connectivity to an existing Arduino project or have serious aspirations for developing a Internet of Things (IoT) solution, Arduino + ESP8266 wifi module is one  of the top choices. Especially the Nano because it is super cheap (<$3) and is very small in size. Using some sort of…

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Halloween Costume with Arduino

This Halloween me and my daughter decided to add some dazzle to her fairy costume. Since we were anyway learning to code on Arduino we decided to dip our hands in wearables. The basic idea is to build a costume that glows when someone comes close. The project was intended to teach a 9 year…

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Arduino Fun – Door Entry Alarm

  Arduino UNO based door entry alarm Physical computing and “internet of things” is a super exciting area that is unfolding right now. Even decades back one could hook up sensors and remotely get those data and process it. What is special now is that powerful micro-controllers are dirt cheap and most of us have…

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