Category Archives: Project

WiFi Scanner using PCD8544 and NodeMCU

You can download our e-book ‘Learn Arduino from Scratch’ from this link While searching in my Pandora’s box of electronics, I came across the beautiful PCD8544, or the more familiar name, the Nokia 5110 LCD. This amazing piece of hardware is fully programmable using Arduino or ESP8266/NodeMCU. Thanks to Adafruit and bbx10 for their libraries which make our lives easier. The display has a resolution of 84×48 pixels. Each pixel… Read Article →

esp8266 wifi

Extend WiFi with an ESP8266

You can download our e-book ‘Learn Arduino from Scratch’ from this link The ESP8266 is known for it’s powerful features and performance despite its small size. However few knew it could act as a WiFi extender/repeater. From previous lessons, we learned how to make the ESP8266 act as both a station and an access point. Now we are going to use that functionality at the same time with a little… Read Article →

hacker

Messing with WiFi protocol, Esp8266 and fake APs

You can download our e-book ‘Learn Arduino from Scratch’ from this link I was browsing the internet on a rainy day, and stumbled upon some cool stuff. The ESP8266, apart from being a super chip, which can be turned into a station and an access point, it can also do some weird stuff at the lowest possible level on the WiFi protocol. wifi_send_pkt_freedom() is a function built in Arduino Core… Read Article →




Arduino Bluetooth Tutorial HC-05

You can download our e-book ‘Learn Arduino’ from this link Bluetooth has been around for quite a while now. Being a common way to communicate with mobile phones, it was only natural to include this protocol in the Arduino arena. Bluetooth is typically a low power, medium range device, in fact it can reach up to 10 meters. Bluetooth operates on the same frequencies as WiFi, 2.4Ghz.Connections are normally one… Read Article →

Smart lamp

A Smart Night Lamp for Kids

You can download our e-book ‘Learn Arduino from Scratch’ from this link Few weeks ago I heard my nephew (aged 7) complaining of the dark at night. Basically he was afraid 🙂 So I decided to put knowledge into practice and build a night lamp for kids. Since the project was intended for kids, I thought of making the lamp change color every now and then. It should also be… Read Article →

Moisture Sensor

Plants Monitor – Arduino Soil Moisture Sensor

You can download our e-book ‘Learn Arduino’ from this link Do you have a plant in the living room which you often forget to water? I know, I know you often forget about it. So before it becomes yellow and dries more than the Sahhara, follow this tutorial and build a little soil monitoring project. The Plants Monitor will help you remember to water your little plant by flashing an… Read Article →




Lightning

A Lightning Detector for Arduino

You can download our e-book ‘Learn Arduino from Scratch’ from this link In this tutorial, we will build a lightning detector using an Arduino Uno, a few resistors and some jumper wires. Most lightning detectors often cost too much for the normal hobbyist, however this does not mean one cannot enjoy lightning detection and the physics behind it. In this tutorial, using a surprisingly simple circuit we will be able… Read Article →

Frequency Counter

Arduino Frequency Counter with 16×2 LCD Display

You can download our e-book ‘Learn Arduino from Scratch’ from this link Recently, a friend of mine had an issue with his car’s ECU and needed a frequency counting device. The solution was a device to determine the pulse frequency emitted by the ECU against the rev counter. So, the device had to have the ability to read digital pulses, between 1v – 5v, which are then interpreted by a… Read Article →

Arduino Cellular Automata

Arduino and OLED based Cellular Automata

You can download our e-book ‘Learn Arduino’ from this link This project uses an I2C 128×64 OLED to display a tiny cellular automata powered by Arduino Nano. Prerequisites 2x half size breadboard (ebay) (or 1x standard) 1x Arduino Nano (ebay) (can be Uno as well) 1x OLED I2C 128×64 (ebay) 4x Jumper Wires (ebay) Assumptions During this tutorial I will assume that you know what an Arduino is (o_O) and… Read Article →