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Archive for the ‘Arduino’ Category

Serial seven segment LED display shield

Wednesday, December 7th, 2016

Raj over at Embedded Lab has just finished a new project article about a serial seven segment LED display shield: Seven segment LED displays are brighter, more attractive, and provide a far viewing distance as well as a wider viewing angle compared to LCD displays. This project describes a serial seven...

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Posted in Arduino, LEDs | No Comments »

Adjusting clock with alarm, hygrometer & thermometer on 1.8″ ST7735 display

Friday, December 2nd, 2016

Nicu Florica blogged about his adjusting clock with alarm, hygrometer and thermometer on 1.8" ST7735 display: I use feature from article Another adjusting clock with alarm & thermometer using DS3231 on 1.8" ST7735 display and change reading internal temperature of DS3231 with DHT22 senzor (AM2302), but you can use a cheaper...

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Yet another Arduino clock

Tuesday, November 8th, 2016

Sverre Holm blogged about his Arduino clock project: Its main features are: Controlled by a GPS module outputting data over an RS232 serial interface, and handled with the TinyGPS++ library Shows raw GPS data such as UTC time and date, position, altitude, and number of satellitess Shows derived GPS data such...

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4-20 mA current output for Arduino Uno

Tuesday, November 1st, 2016

Giovanni Carrera writes, "The purpose of this project is to provide a 4-20 mA output from a PWM signal generated by a microcontroller ATmega328 and numerous other chips, such as the PIC. One of the more interesting applications of this circuit would be to replace or to realize a smart...

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DIY Arduino ProMini data logger

Friday, October 28th, 2016

Ed Mallon blogged about his DIY ProMini data logger build: Typical pro-mini loggers built with this design sleep at 0.25mA, before extra sensors are added. At that current draw, the logger should deliver approximately six months of operation on three brand new AA batteries with a 15min duty cycle; depending...

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Fan controller project

Thursday, October 27th, 2016

Lucky Resistor has written up documentation on his fan controller project: The fan controller described on this project page, controls one or more PWM controlled 12V PC fans. It uses the input from two precise DHT22 based temperature sensors. The MCU is an Arduino Uno, which is powered using a...

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Guide for BMP180 barometric sensor with Arduino

Thursday, October 20th, 2016

A how-to on using the BMP180 barometric sensor with the Arduino from Random Nerd Tutorials: The BMP180 barometric sensor (model GY-68) is the one in the following figure (front and back view). It is a very small module with 1mm x 1.1mm (0.039in x 0.043in). It measures the absolute pressure of...

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Posted in Arduino, tutorials | 1 Comment »

Gnat-Stats, Tiny OLED PC performance monitor

Monday, October 17th, 2016

Rupert Hirst writes: After a recent purchase of a Nvidia GTX1080 graphics card, 4k monitor plus Doom(2016), I thought it would be great to see some external telemetry... from my exorbitant purchase. Then, I Stumbled upon on Psyrax's "Serialmonitor" GitHub repository! Armed with an Arduino ProMicro plus a 128x64 pixel OLED...

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Posted in Arduino, OLED | No Comments »

Arduino Mega EPROM programmer

Friday, October 14th, 2016

An Arduino Mega Eprom Programmer project from Robson Couto, that is available on github: Recently I acquired a SNES. But it only came with a bootleg Mortal Kombat cartridge. Searching for games I found a lot of repro cartridges (Cartridges with the ROM swapped) being sold at local second hand...

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An isolated analog output for Arduino Uno

Friday, October 7th, 2016

Giovanni Carrera writes: This project completes the series of my articles about the Arduino analog I/O with the aim to use it as a controller of small automation systems. In control systems of the industrial plants it is always advisable to isolate both the inputs and the outputs coming from...

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An Arduino Terminal

Saturday, September 10th, 2016

  Peter Scargill writes, "As it happens I’m experimenting on a 1284 chip which while being Arduino-compatible kind of, it does have another serial port, so without disconnecting my FTDI – I hooked up the second serial port to the home control serial and fired the DEBUG command at the...

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DIY Desktop CNC with an Arduino

Wednesday, August 31st, 2016

Bob Davis has been working on rebuilding his DIY CNC machine: I have been busy rebuilding my DIY CNC machine. It will be all metal when I get done. It will also include a USB interface, likely an Arduino. None of my computers have a parallel port these days. So something...

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RC boat with NRF24L01+ and Arduino

Friday, August 19th, 2016

Markus Gritsch writes: I and my little son built a small electric boat from a kit. However, the kit only offered turning on the motor with a switch, and let the boat cruise wherever fortune it may take. I thought why not improve it a bit by adding some RC...

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Posted in Arduino, project logs | No Comments »

Dekatron tubes controlled by Arduino

Tuesday, August 16th, 2016

Flathagen writes: Interfacing dekatron tubes with a microcontroller is fairly easy, once you understand how the tubes work. Threeneuron's Pile o'Poo of Obsolete Crap provides the necessary background information and schematics for making this work. I used two russian OG-4 tubes. I prefer the orange look of the neon tubes...

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I2C Continuum

Tuesday, August 2nd, 2016

Peter Scargill writes: Success with I2c – once I realised there was something up at the Arduino end which I could work around, my ESP8266 I2c endeavours have been coming on in leaps and bounds! And here is my test rig – or one of them – I have one...

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Posted in Arduino, wireless | No Comments »

DIY self sustaining solar powered backyard hydroponic garden

Friday, July 8th, 2016

Dan Beaven has been working on his DIY backyard solar powered hydroponic garden. More details at Dan Beaven's blog. Via the contact form.

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Posted in Arduino, DIY | 2 Comments »

Understanding Arduino UNO hardware design

Wednesday, July 6th, 2016

Yahya Tawil over at All About Circuits has published an article on Arduino UNO's electronic design and better understanding of its hardware: This article explains how Arduino works from an electronic design perspective. Most articles explain the software of Arduinos. However, understanding hardware design helps you to make the next...

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WiFiRGB – A WiFi-enabled RGB high-power LED

Thursday, June 23rd, 2016

Tom blogged about his WiFi/Browser controlled RGB LED project: Features Simple hardware, using pre-fabricated modules Controls an RGB LED via any recent browser, any operating system WiFi credentials can be configured via browser Software is written as an Arduino sketch Full details at Tom's blog. Check out the video after the...

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Posted in Arduino, wireless | No Comments »

Arduvision II: OV7670 + FIFO module and arduino Mega

Tuesday, June 21st, 2016

David has posted a tutorial on how to use an Arduino Mega to interface the ov7670 sensor. More details at TheRandomLab. Check out the video after the break. (more…)

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Posted in Arduino, tutorials | No Comments »

GPRS module with M590 for SMS projects

Saturday, June 11th, 2016

From the comments on our earlier Neoway M590 GPRS tutorial post, the GPRS module with M590 for SMS projects by Nicu: In 1st part I present you few data about GPRS module with M590 chip and how send SMS from them. In 2rd part I send SMS from phone and SMS is...

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Posted in Arduino, how-to | No Comments »

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