All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

You can achieve long distance communication between two Arduino using RS-485 module. This module is capable of sending and receiving of data up to 1.2 km at a rate of 20 Mbps. It can support up to 32 devices. It runs off 5 volts meaning your Arduino can supply power to it. Think of building a network of Arduino powered devices. This article will guide you in building yours http://blog.nerdshed.com.ng/2017/03/16/two_way_rs485_communications/

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

Ever heard of Tesla? The autonomous cars (no drivers) produced in the US owned by Elon Musk. These are able to perform without drivers with the help of ultrasonic sensors which measures distances between it and other objects. These sensors are really cheap and can be incorporated into your project with an Arduino. Think of building a device that alerts you if someone enters your room/office, or an autonomous model car. Anything atall. This guide will put you through in building one. http://blog.nerdshed.com.ng/2017/09/14/measure-the-distance-with-hc-sr04/

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

Are there times your phone bailed out on you when you needed to make an important call to your boss? or when you needed to call your wife that you’re still on the way home when it’s late at night? or when you needed to text an important information to a client? Okay you got a power bank, yeah but for how much? At what quality? You could put those resources into building your own power bank easily at a cost effective amount. This article will guide you in building yours http://blog.nerdshed.com.ng/2017/06/30/build-your-own-power-bank/

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

Bluetooth, what is it? you know already. What can it be used for? you know already.. but do you?? Do you know you can build bluetooth controlled gadgets and devices using HC-05/06 module and an Arduino? We're talking home automation, robotics, alarm systems. Name it. Interested? Then this tutorial will guide you in building your own bluetooth controlled gadget. http://blog.nerdshed.com.ng/2017/04/21/control-it-all-with-hc-05hc-06-bluetooth-module/

nic2wao:
a whooping >1km range,

DIY Drones must find these handy

Yes. you're right. Do you fly drones?

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

As embedded systems developers. There are times we want to establish some form of communication between two devices. The obvious route is using a wire. But what if i tell you there's a cheap method of connection, wirelessly. Yes, i give you the 2.4 Ghz NRF2401 wireless transceiver meaning it can transmit and receive data in a half-duplex manner. The module is very cheap and can be interfaced with any micro-controller. The antenna range is >1km. Think of using this in robotics, alarm systems, home automation. This tutorial will guide you in setting it up with an Arduino. http://blog.nerdshed.com.ng/2017/07/28/how-about-two-arduino-talk-to-each-other-wirelessly/

Drniyi4u:
It depends on the kind of arduino you're using, and the number of pins that the other components will need. Digital pins could also be converted to analog, and vice versa.

Yes but that I²C module helps to reduce the number of wires you use for an LCD from minimum of 6 digital pins to just 2 so you can have more pins for other components to connect.

function checkVar(word) {

if (typeof word === 'undefined'){
return "Variable not defined";
}
}

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

Servo motors use feedback to determine it’s position, therefore they can be used to control robots or small sized objects.They can be connected directly to a micro-controller. Servo motors were first used in the Remote Control (RC) world, usually to control the steering of RC cars or the flaps on a RC plane. With time, they found their uses in robotics, automation, and of course, the Arduino world In this article, we’ll look at how to interface a servo motor with an Arduino UNO micro-controller here http://blog.nerdshed.com.ng/2017/06/12/a-quick-guide-to-servo-motors/ in this tutorial.

Get the servo motor here https://nerdshed.com.ng/products/servo-motor-sg-90

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

The weather in Nigeria is awful. Temperatures rise above 37 degrees celsius, which causes some edible foods to spoil. Let's say you buy a product and it says don't allow the temperature rise above a certain value. How do you measure and monitor the temperature? Look no further, there are sensors in the market today but for the focus of this tutorial, we'll use DHT11 temperature and humidity sensor. We can read the values using an Arduino microcontroller and after visualize the data on an LCD. This tutorial http://blog.nerdshed.com.ng/2017/05/12/build-a-temperature-and-humidity-station/ will guide you in setting up your own station.

Get the sensor module here https://nerdshed.com.ng/products/dht-11-temperature-and-humidity-sensor

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

Have you ever incorporated LCD into your projects? If yes i'm sure you know the hassle involved in soldering 6 digital pins wires to your controller. You use up almost all of your GPIO pins.

What if i tell you there's a way to reduce it down to just 2 asides power and ground. I introduce to you I²C which can be used to drive your LCD. I²C uses 2 bi-directional lines, SDA(Serial Data) and SCL(Serial Clock). The blue potentiometer on is used to adjust the backlight. Now you can conveniently add an LCD to your project and still have GPIO pins for other connections. This article will guide you into working with the I²C module. http://blog.nerdshed.com.ng/2017/06/13/use-your-lcd-with-i2c/.

Get the module here https://nerdshed.com.ng/products/i-c-to-lcd-interface-module

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

There are times you just want to build a project that can be controlled wirelessly e.g Robots, remote controlled cars, garage doors to mention but a few. Don't look any further. I give you the 315 MHz wireless remote control which is based on an IC PT2272. The wireless module is cheap and easy to use. The transmitter has 4 buttons which activates 4 pins on the receiver. These can be read with any microcontroller but for the sake of this tutorial, we'll be using an Arduino. Read more here on this blog. http://blog.nerdshed.com.ng/2017/05/19/time-for-some-remote-control-with-315mhz-remote-controller/

-The wireless module can be gotten here https://nerdshed.com.ng/collections/wireless/products/4-channels-wireless-remote-control-315mhz-arduino-compatible

All parts used in this post can be gotten from www.nerdshed.com.ng with a pay-on-delivery option.

I'm very sure as Nigerians, there are times we've rushed out of our house without turning off our appliances. This post will guide you in creating your own device which can be used to operate your appliance anywhere in the world over the internet. Let me just give you small yarns about the microcontroller. It's called a NodeMCU. It is a low cost development board that helps you build an IOT project in a short time. It has GPIO pins, PWM, I2C, 1-Wire and ADC. The drawback is that it works on 3V only. This project is really cool and imagine showing off to your friends and family. You can read more on our blog http://blog.nerdshed.com.ng/2017/03/29/ac-lightbulb-internet/

Here's a link to buy the NodeMCU controller dev board https://nerdshed.com.ng/products/esp8266-esp-12e-wifi-development-board-nodemcu-lua