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30 Jun 2015


by codebender_cc @ instructables.com:

The LiquidCrystal library allows you to control LCD displays that are compatible with the Hitachi HD44780 driver. There are many of them out there, and you can usually find them by the 16-pin interface.

In this tutorial you will learn how to use LCD 16×2 display (and 20×4) with Arduino uno.

You will also learn how to use lcd.begin(), lcd.print() and lcd.setCursor() functions

How to use an LCD displays – Arduino Tutorial – [Link]

26 Jun 2015


by codebender_cc @ instructables.com:

An RGB LED has 4 pins, one for each color (Red, Green, Blue) and a common cathode. It has tree different color-emitting diodes that can be combined to create all sorts of color! Any color is possible depending on how bright each diode is.

How to use an RGB LED – Arduino Tutorial – [Link]

26 Jun 2015

20150624024339_Winoby Martin Cooke:

The Wino board is an Arduino-like stackable development system which is both smaller and cheaper than Arduino units and features built-in WiFi as standard.

The main Wino controller board measures 26.5 x 18.5 mm and fitted with an Atmel ATSAMD21 running at 48 MHz with 128 kB Flash storage and 16 kB RAM. The board uses the ESP8266EX WiFi module which supports all the 802.11 b/g/n standards offering P2P and soft-AP modes and TCP-IP / UDP, static IP and DHCP networking. The 27-pin stackable connections around the board periphery provide connections for 15 digital GPIO pins, 6 x 12-bit ADCs and a 1 x 10-bit DAC.

Wino… like Arduino, only smaller – [Link]

21 Jun 2015


by codebender_cc @ instructables.com:

The MQ series of gas sensors use a small heater inside with an electro-chemical sensor. They are sensitive for a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino.

The MQ-2 Gas Sensor module is useful for gas leakage detecting in home and industry. It can detect LPG, i-butane, propane, methane ,alcohol, hydrogen and smoke.

Some modules have a built-in variable resistor to adjust the sensitivity of the sensor.

How to use MQ2 Gas Sensor – Arduino Tutorial – [Link]

18 Jun 2015


by PowerBot @ instructables.com:

Hello, everyone !!! Today I’m going to show you how to make thermometer with Arduino and LM35 termperature sensor, builded on bread board and conected together with jumpers (bunch of cables :D).

Arduino Thermometer With LM35 – [Link]

15 Jun 2015


by elektormagazine.com:

After a successful funding campaign on Kickstarter earlier this year the low-cost RasPiO Duino board is now in production and available to purchase. The RasPiO Duino is a small development board with similar functionality to an Arduino Uno. Once it is plugged onto a Raspberry Pi the system forms a complete low-cost Arduino development environment allowing programs to be developed and loaded to the RasPiO Duino. The board can then be unplugged to function independently.

It can also be used to operate interactively with the RPi. The RPi’s GPIO ports are broken out on the board as well. A 72-point prototyping area is provided with GND, 3V3 and 5V rails to facilitate the addition of custom circuitry.

The RasPiO Duino – [Link]

12 Jun 2015


by Samuel_Alexander @ instructables.com:

In this project we are going to learn how to use the HC-SR04 PING))) ultrasonic sensor to measure distance. This sensor is also often used on robots to detect obstacles.

Simple Distance Measuring Device – [Link]

8 Jun 2015


by elektormagazine.com:

Resolving the position of free roaming robots can be quite challenging. You can only expect to get accuracy of around 6 to 10 meters by using a standard low-cost GPS system and that can be further downgraded by poor signal strength inside buildings. Bluetooth and WiFi positioning can achieve 1 to 5 metres resolution but that’s often not enough. The Pozyx system has been developed to achieve a positional accuracy of 10 cm and works indoors or outdoors.

Four ‘Anchor’ transceiver units attach to walls or fences surrounding the space in which the Pozyx Shield operates. Communication between the shield and the four anchors allows the shield to determine its position and orientation within its operational area.

Pozyx shield gives position – [Link]

6 Jun 2015

Clones of the popular Arduino Uno are now so cheap, it’s difficult to save money by building your own. But the knowledge gained from assembling an Arduino from individual parts, makes the exercise well worthwhile.

1-Day Project: Build Your Own Arduino Uno for $5 – [Link]

4 Jun 2015


Stepper motors are brushless DC motors which can move in discrete steps thanks to the special coil arrangement inside. They are very popular in DIY and industry projects which require accurate mechanical movement control. In this SoloPCB project, we are building a dual stepper motor driver shield based on two Allegro A4988 ICs which can supply up to 35V and 2A and provide overcurrent and thermal protection.

DIY Dual Stepper Motor Driver Shield for Arduino – [Link]





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