This tutorial is a step-by-step guide designed to help you get started with this amazing Wi-Fi module called ESP8266 and build projects that can be used to automate your home.

This tutorial covers:
• Technical specifications of the ESP8266
• Different ESP8266 modules
• How to install the Arduino IDE and how it works
• How to establish a serial communication with the ESP8266
• How to blink an LED with ESP8266
• How to interact with the ESP8266 GPIOs
• How to create a web server
• How to access your web server from anywhere in the world
• How to send emails with the ESP8266
• How to create an email notifier.
• And a lot more…

What is ESP8266?

The ESP8266 is a Wi-Fi module with an ARM processor that is great to extend the functionality of a microcontroller such as an Arduino.
It can communicate with your microcontroller via serial. This tutorial was designed to take the most of your ESP8266, so you
don’t even need an Arduino board. You just need an ESP and a few components!
So, what can you do with this low-cost module? You can create a web server, send HTTP requests, control outputs, read inputs and interrupts, send emails, post tweets, etc.

ESP8266 specifications

• 802.11 b/g/n protocol
• Wi-Fi Direct (P2P), soft-AP
• Integrated TCP/IP protocol stack
• Built-in low-power 32-bit CPU
• SDIO 2.0, SPI, UART

Topic 1: The (HC-SR04) Ultrasonic sensor

Description
The HC-SR04 ultrasonic sensor uses sonar (high-frequency inaudible sound) to determine distance to an object like bats do. It offers excellent non-contact range detection with high accuracy and stable readings in an easy-to-use package.
From 2cm to 400 cm or 1” to 13 feet. Its operation is not affected by sunlight or black material like sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect). It comes complete with ultrasonic transmitter and receiver module.

Features

• Power Supply :+5V DC
• Quiescent Current : <2mA
• Working Current: 15mA
• Effectual Angle: <15°
• Ranging Distance : 2cm – 400 cm/1″ – 13ft
• Resolution : 0.3 cm
• Measuring Angle: 30 degree
• Trigger Input Pulse width: 10uS
• Dimension: 45mm x 20mm x 15mm

okeyfineboy:
PLEASE IF YOU ARE A GOOD PROGRAMMER AND U STAY IN ABUJA CONTACT ME OR DROP YOUR CONTACT

hardare programmer...

Yes, get ready. i am about to make this lively..

ThatErha:
Nice one guys.

Interesting thread .

You are welcome.

to learn more follow this thread because i am about to update it with new topics on arduino and raspberry...
https://www.nairaland.com/4338684/free-arduino-tutorial

In naija

It is called Kiacoke...

Chubhie:
How much is human life worth in Nigeria?

N2.00

Fulani herdsmen again... are they untouchable?

bastard na konji

Commonly used C sketch functions

pinMode(PIN-NUMBER,I/O-MODE)
This function is used to specify whether a particular Arduino pin will be used in Input or Output mode.

digitalRead(PIN-NUMBER)
This function is used to read digital input from a digital pin. The input value is either LOW or HIGH and can be stored in a Boolean type variable.

digitalWrite(PIN-NUMBER,SIGNAL-LEVEL)
Use this function to send a digital LOW or HIGH signal on a particular pin.

analogRead(PIN-NUMBER)
This function is used to read analog input from analog pins. The input value can be stored in an integer type variable.

analogWrite(PIN-NUMBER,SIGNAL-VALUE)
Use this function to send an analog signal on a particular pin. The signal value can be specified as an integer between 0 and 1023.

delay(MILLI-SECONDS)
This function is used for halting the program execution for the specified number of milliseconds.

delayMicroseconds(MICROSECONDS)
This function can be used to halt the program execution for the specified number of microseconds.

Serial.begin(BAUD-RATE)
This function sets the baud rate for communication between the Arduino board and Arduino IDE's Serial Monitor window (also with any serial port communication program)

Serial.println("MESSAGE".
This method is used to output a string message to the Serial Monitor. It results in printing each message in a separate line.

Serial.print("MESSAGE".
This method is used to output a string message to the Serial Monitor. All messages sent are printed one after the other on the same line.

isnan(VALUE)
This in-built function is used to determine whether a specified value is a number or not.

tone(PIN-NUMBERFREQUENCY, MILLI-SECONDS)
Use this function to play a sound of a particular frequency on a buzzer connected to a particular pin.

pulseIn(PIN-NUMBER,LOGIC-LEVEL)
Use this function to read and measure the duration of an input signal on a particular pin. Based on the logic level specified as a parameter to the function, it will wait for and read the signal until its logic level changes. For example, when reading a HIGH signal, it waits for a HIGH input signal and measures the duration until the signal level changes to LOW.

millis()
This function returns the number of milliseconds since the Arduino board was powered on and the program started running.

Introduction to the Arduino platform

The Arduino platform is a hardware board that offers a hardware-software
integrated creative device development platform. The Arduino boards can be
interfaced with openly available peripheral devices and custom programs can
be written and loaded (embedded) into the Arduino development board:

rhothymie:
following

Welcome on-board

If you are interested in learning arduino programming, then this thread is for you.

http://www.dailymail.co.uk/health/article-5159359/Mermaid-baby-tragically-died-just-four-hours-later.html

Read from the link above, I can't. copy & paste from the page

manmidtexy:
Hi,

I have PIC16F72-IASP and PIC16F73-IASP to program.

How much will it cost and i want to learn more on embedded system programing using Arduino.

If you have the chips, you only need the programmer to program them. The programmer may cost you between #5000 and #8000 depending on the type and your source.

Jean2:
How do one make good quality casing? Plastic type, metal type?

For plastic type use 3d printer

Since the day I heard about and got to play with the Raspberry Pi one a few years ago I've wanted to make a Raspberry Pi powered laptop out of it and now with the rease of the Raspberry Pi three I've decided to finally see it through. Now this isn't my first time attempting to make a fully working laptop using a Raspberry Pi, every other time I've tried the project has been riddled with errors with anything from broken ribbon cables to figuring out the hinge mechanism however I've been able to learn from these failures and I hope to show you how to avoid them when making your own. So lets get started!

Step 1: What Do We Want It to Do

Before we can start choosing and buying the parts we are going to be using we need to figure out everything we want our laptop to be able to do, for example I want my laptop to have:

integrated mouse (trackpad)
long battery life
at least 2 USB ports
full keyboard
integrated Arduino powered battery reader
integrated Arduino with headers for plugging components into
small form factor

Since we are using the Pi 3 we dont have to worry about buying a Wifi or Bluetooth dongle because it has it all integrated. Now this list is by no means exclusive, there are many other things that can be added to make this a better laptop however I think the features im adding will give it some awesome usability such as the integrated Arduino powered battery reader which will be a small OLED screen next to the main screen which will permanently show the battery percent and voltage, another feature I really like is the integrated Arduino with headers, this is basically an Arduino with male headers soldered to it, there are small holes cut in the case that allow the user to access the male pins and plug in components, so all this really is just an Arduino built into the laptop so we always have an Arduino handy.

Step 2: Parts

For this project we will need quite a lot of parts, we will need:

x1 Raspberry Pi 3 (Here)
x2 Arduino Micro (Here)
x1 Seven inch Raspberry PI screen (Here)
x3 Lithium 18650 Batteries (Here)
x1 Powerbank circuit (Here)
x1 USB hub (Here)
x1 Mini USB keyboard (Here)
x1 Male USB (Here)
x1 SPI OLED (Here)
Reinforced cardboard

We are also going to need the trackpad we made in a previous project, you can find the full tutorial here . Once again this is by no means an exclusive list, whats nice about these parts is that the majority arent dependent on each other so you can swap parts for whatever you want. We have alot of parts to setup so to make it easier we are going to set them up individually and then at the end we can put them all together.

Step 3: Setting Up the Pi and Screen
Lets start with our PI and screen, our screen doesn't connect to our Pi through the HDMI port but rather through a 50 pin ribbon cable that plugs into the Pis GPIO however if you just plug it in and start up the Pi it won't work, we need to edit some lines of code in the startup file for the Pi.

We start this by downloading a fresh Raspbian image Here , then we write it to our SD card using 7Zip (or whatever software works for you). Now once its written we need to open a file on the SD card called config.txt and add some code. What this code does is tell the Pi to send the screen data through the GPIO headers rather than the HDMI port (HDMI is the default) on startup. Putting the code in is really easy. Open the config.txt with a notepad program, for windows i'm using notepad ++, and copy this code into the config.txt file now save and close and it should work once the SD card is plugged back into the Pi. If it looks too bright or too dim turn the little petentiomoter on the screen circuit board until it looks right.

Our Pi also needs to physical modification to fit inside our case properly we are going to have to desolder one of the duel usb ports, this is done by putting a fairly large amount of solder on the pins of the USB connector and slowly rocking it back and forth until it becomes free. We do this because we need to solder a usb hub to the Pi to plug in all of our input devices.

The code:

<p>dtoverlay=dpi24<br>enable_dpi_lcd=1
display_default_lcd=1
dpi_group=2
dpi_mode=87
dpi_output_format=0x6f005
hdmi_cvt 1024 600 60 6 0 0 0</p>

to be contd...

http://www.instructables.com/id/Raspberry-Pi-and-Arduino-Laptop/?utm_source=newsletter&utm_medium=email

FFK and Ezekwesili ...

https://www.naij.com/1128269-fani-kayode-slams-president-buhari-shameful-independence-day-speech.html?utm_source=mailfire&utm_medium=email&utm_campaign=online_pusher#1128269

- Chief Mike Ozekhome criticised President Buhari's Independence Day speech
- The lawyer said the president failed to address important issues
- He accused him of hating the Igbo race Chief Mike Ozekhome who is a constitutional lawyer and a right activist has lashed out at President Muhammadu Buhari saying he has shown his hatred for the Igbo race. Vanguard reports that in a statement issued by the lawyer on Sunday, October 1, he criticised the president’s Independence Day speech saying it confirmed his fixated hatred for the Igbos. The lawyer wondered why the president did not criticise the activities of Fulani herdsmen and the quit notice issued to Igbos in the north.
Ozekhome said President Buhari failed to use the opoortunity to address more important issues facing his administration. Read the statement below: “The entire national day broadcast by PMB on the occasion of Nigeria’s 57th independence is quite disappointing in all ramifications”.
“It was very un-presidential and un-reconciliatory. PMB left the real issues and pursued trifles”. “The speech was bereft of nobility of statesmanship, and devoid of a calm grasp and appraisals of the dire straits Nigeria is currently in”. “The broadcast was rabidly narcissist, parochial, nepotic and clannish, as it failed to see anything wrong with the blatant and well reported threats by the Arewa youths to quit fellow Nigerians from their domains”. “The speech followed his now well worn out fixation of perceived hatred for the Igbo race, whose leadership he needlessly scurilized and lampooned, for allegedly being behind IPOB and other agitations”. “I doubt and didn’t hear him mention anything about gun wielding herdsmen that literally vanquish citizens in their own homesteads across Nigeria”. “The President celebrated mediocrity and edified his government’s non-performance two and half years down the line”. “I genuinely wondered if he was discussing the same country, Nigeria, that I am in, or another utopian planet Mars”. “The beautiful picture of a peaceful country he painted so glowingly and artistically with the paintbrush of breathless satisfaction is quite different from the stark reality on the ground, which every beleaguered Nigerian labours under”. “His speech writers either wallowed in utopian mystic of redemptive messianism, or in crass fraud and grand deception”.
“But, Nigerians are no fools. Did I hear PMB say this is the first time a government at the Centre is losing the governorship, senatorial and Houses of Assembly’s elections to the opposite at the state level? “No sir, wrong. Whoever gave Mr. President this false electoral history has done him incalculable disservice and great damage and ridicule’. “Few examples: Remember Ondo state (Labour Party), Osun and Edo states (AC), Anambra (APGA), etc? “Not only did the ruling PDP party lose the elections to those opposition parties, the then President Goodluck Ebele Jonathan actually rolled out the drums and congratulated the new governors, Senators and House members”. “Peter Obi won the Anambra state governorship election in 2010 for the second time on the platform of APGA”. “Obasanjo was President at the Centre under the PDP party, just as Bola Tinubu won the Lagos state governorship seat twice under AD and ACN, with Obasanjo as president under PDP at the Centre”. “Buhari lost yet another golden opportunity to balm bruised nationalities’ ego and cement Nigeria’s yawning cleavages, hate and divisiveness”. “Must everything be predicated on falsehood, force, threats and gun boat diplomacy, viet armis? “It didn’t ever work. When he applied such excessive force and threats to the Niger Delta militants, I counseled then it would not work”. “The marginalized youth picked up the gauntlet, serially blew up oil pipelines, tore up Nigeria’s oil jugular into smithereens”.
“Crude oil output plummeted to about 700 thousand barrels per day from 1.5m barrels”. “It took the then Acting President Yemi Osibanjo’s shuttle diplomacy to the Niger Delta region to quell the strife”. “It was Napoleon Bonarparte, a French General and Emperor (1769-1821), who famously declared: “do you know what amazes me more than anything else? The impotence of force to organize anything”. “PMB sir, allow Nigerians enjoy the full bloom of democracy and its inbuilt mechanisms for conflict resolution.”

https://www.naij.com/1128159-buhari-shown-fixated-hatred-igbos-ozekhome.html?utm_source=mailfire&utm_medium=email&utm_campaign=direct#1128159

That is vegetable from federal university of agriculture

mide06:
Hello Techy. I am Olu from Abuja.i saw your post on Raspberry Pi 3 Model B on Nairaland and am in urgent need of it. i need you to kindly confirm if you sell it or have a useful information as per where and how much to get it in Nigeria. thanks

It is available. #25000

tunasha:
check my posts on micro-controller programming,you might find something useful and inspiring,...i am a versatile professional software/embedded system engineer.here is of my designs

Wellcome on-board

Congratulobia to pdp...

Following these 6 steps:

Wake up at 7:30am.

Don’t check your phone.

Put it on airplane mode.

Hide it in another room, under a pillow.

Do work for the entire day.

Go to sleep.

If you do this successfully - you’ve got incredible self-control.

We’re entirely addicted to our smartphones - Notifications, pings, emails, messages.

The guy is a comedian

We have good trackers for sale. We also do installation. Check our store below

Just a simple request and the thread don enta page 11

Successguilders:
Ok We are in Imo and Lagos, but be careful not every body that claims to be a teacher can impact, by their fruit u will know them.

hahahahaha......
what are you doing in my thread?
When did you start embedded system stuff?

chukwukahenry:
enugu.

Check my site. We are in Enugu. (Nsk)

Successguilders:
where are u?

In the moon