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Posts Tagged ‘Arduino’

ESP8266 NodeMCU Backdoor uPWM hack for IR signals

Wednesday, July 6th, 2016

The AnalysIR crew has published an article showing how to achieve accurate PWM for Infrared carrier signals on the ESP8266 NodeMCU: Quite simple really – just set the baud rate to 10 times the desired Infrared carrier frequency and send a ‘magic’ 8 bit character to achieve the desired duty...

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Posted in how-to, infrared | 2 Comments »

LDMOS amplifiers

Friday, June 24th, 2016

Pete (N6QW) writes: This project encompasses proving an Arduino Control of a hi Power Linear Amplifier. It is a new departure for N6QW as it has extensive I/O requirements which required moving to the Mega 2560 a Arduino variant that has 56 Digital I/O and 16 Analog Inputs. The on...

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Posted in RF | No Comments »

How to build a control circuit with adjustable working time via wi-fi

Friday, June 17th, 2016

Yahya Tawil over at All About Circuits posted a detailed how-to on building a control circuit with adjustable working time via Wi-Fi: In this article, you'll learn how to build a system that can turn DC loads on and off using a mobile application. You'll also learn how to perform this task...

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Posted in Android, tutorials, wireless | No Comments »

Arduino RFID login

Wednesday, May 18th, 2016

Luke has published a new build: I wanted a simple way of quickly logging on to my computer without having to typing my password in and did not want to have no security either. There are various products on the market that would solve this problem from fingerprint readers to...

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Posted in Arduino | 3 Comments »

DIY 32ch FPV 5.8ghz LCD

Friday, April 29th, 2016

Spikey made his own DIY 32ch FPV 5.8ghz LCD with Dirty Board PCB’s: If you’re like me, you don like buying stuff that’s ready-to-go, but rather build one yourself. We usually spend more money, but it’s way more satisfying I really didn’t want to buy an overly expensive FPV LCD receiver, so...

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Posted in DirtyPCBs.com, DIY | No Comments »

App note: Interfacing AT84AD001B dual 8-bit 1 Gsps ADC and AVR ATmega128L

Sunday, April 10th, 2016

e2v's application note interfacing their 1 Gsps 8-bit ADC to AVR. Link here (PDF) With its smart feature (3-wire serial interface), e2v's AT84AD001B dual 8-bit 1 Gsps ADC provides you with digital control over various functions offered with the dual ADC: calibration, gain and offset adjustments, DMUX ratio selection, analog...

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Posted in app notes | 3 Comments »

Get ready for MPLAB Express, throw away your Arduino

Wednesday, April 6th, 2016

Chas from iradan.com writes: I credit the maker movement with bringing electronics back from the crusty old and lonely electronics hobby back into the main stream. The Arduino is the micro of choice for this army of makers and I conceded it made sense… you install the IDE, plugged in your...

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Posted in PIC | 16 Comments »

Quantifying cooling

Thursday, February 18th, 2016

Chris Palmer (a.k.a nophead) has designed and built this coolometer project to quantify the cooling effectiveness of various fan: I was wondering about how I was going to calibrate the airflow reading but then realised that the flow rate is not actually what I am interested in. It is the cooling effect...

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Posted in DIY, measurement | No Comments »

Nixie thermometer

Monday, February 15th, 2016

Luca Dentella has developed a Nixie thermometer to measure the temperature of the liquid cooling system, that is available on Github.  I decided to log the design and the development of the project in ten blog posts. They show my "divide et impera" approach: I divided the whole project in...

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Posted in DIY, Nixie | No Comments »

mavroOBD, an open source Arduino compatible OBD/Can-Bus module

Thursday, February 11th, 2016

Mavromatics' open source project designed to “hack” your vehicle, that is available on github: The goal of this project it to create an Arduino based OBD port module that can be used to enhance a vehicles capabilites. For example, if you want door locks to close when moving faster than...

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Posted in Arduino, DIY, hacks | 1 Comment »

MIDI to USB adapter with Teensy LC

Monday, January 18th, 2016

Joonas has written up documentation on his MIDI to USB adapter with Teensy LC: Thankfully, I had a MIDI connector and a high-speed optocoupler at hand, and with these I could implement a MIDI in rather easily. After some investigation with Arduino Uno, it seemed quite simple to receive the serial...

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Posted in hacks | No Comments »

Adding a USB power port to a switch for IoT

Tuesday, December 29th, 2015

Jesus Echavarria wrote a how-to on adding a USB power port to a switch: I want to start some projects with Arduino and IoT, so the first things I need is an Arduino board, an Ethernet shield and a switch to connect it to the net. Also I need a power...

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Posted in hacks | 1 Comment »

Paint Machine, a printer that prints small bitmaps on the street

Thursday, December 24th, 2015

Alex Weber has posted a new project on building a DIY Paint Machine, he writes: Here is my latest creature, the Paint Machine. It’s a machine the prints simple bitmaps with spray chalk on the street or sidewalk. Some of the key features: *dimension: width: 220cm, length: 38cm, height: 24cm, weight: 12kg...

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Posted in Arduino, DIY | 2 Comments »

Automatic 18650 Analyzer

Thursday, November 5th, 2015

Gregor wrote an instructable detailing the build of his Automatic 18650 Analyzer project: The idea behind this project was to create a cost effective device that could automatically charge and discharge multiple 18650 cells while determining the effective capacity of each individual cell. Individual cells can be binned by capacity,...

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Posted in DIY | 3 Comments »

DIY WiFi gas detector with text alerts

Wednesday, October 14th, 2015

Stefan over at Hackster.io has written an article detailing his DIY Wi-Fi gas detector that sends SMS alerts: Hey guys, back with another little project that I’ve been fiddling with for the past week. With kids around, every parent is thinking how to make their home safer for the little ones and...

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Posted in DIY, wireless | No Comments »

Open Inverter, an open source micro-solar inverter

Tuesday, October 6th, 2015

Ken Boak has been working on an open source micro-solar inverter project: We wanted to make a design that uses readily obtainable N-type FETS and an Arduino (more strictly a ATmega328P-PU on a breadboard) to generate the PWM signals and provide simple circuit protection, and load sensing. With the PWM signals generated...

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Posted in open source | No Comments »

Dobot: Robotic Arm for everyone, Arduino & Open Source

Friday, September 18th, 2015

Here’s an interesting open source project on Kickstarter the magical robotic arm, Dobot: Designed for DESKTOP. Arduino-powered, 4-axis parallel-mechanism robot arm with High Quality. For makers, educators, and everyone! We are six engineers who built a 4-axis high accuracy, high repeat precision, stepper motor, Arduino-based, desktop robotic arm called Dobot. You...

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Posted in open source, robotics | 19 Comments »

ArTICL: Arduino and MSP432 Launchpad to TI graphing calculator linking

Wednesday, September 9th, 2015

KermMartian over at Cemetech forum writes: A few weeks ago, I received a pair of MSP432 Launchpad development boards courtesy of Texas Instruments, and two weeks ago, I began porting ArTICL to the MSP432. I'm happy to announce that ArTICL is now available to MSP432 Launchpad programs. First developed last year...

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Posted in Arduino, MSP430 | 1 Comment »

Soldering iron + Nodemcu = IoT device

Friday, September 4th, 2015

Vegard Paulsen blogged about his soldering-iron #IoT project: My trusty old soldering-iron recently got an upgrade! With the help of a NodeMCU. a RGB-LED it now reports the set temperature to the #IoT Thingspeak.com server through WIFI. It also sends me Prowl messages on my Iphone when I forget to...

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Posted in Arduino, DIY, wireless | No Comments »

Mesa-Video: 800×600 digital video for Arduinos over 2-wire serial Mesa-Bus

Tuesday, September 1st, 2015

kevinhub88 writes: This post describes Mesa-Video, a low cost, low power, small size and fully Open Source Hardware and Software solution for providing 800×600 digital video for Arduino ( and other ) microcontrollers.  Mesa-Video makes it quick and easy to display text and 24bit color graphics from any MCU using...

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Posted in Arduino, open source | No Comments »

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Recent Comments

  • DP.: fixed, thanks
  • Bovine: Title of article has the wrong number for ESP8266 typed.
  • burkm m: It drifting even further using that standard XO...
  • langwadt: a HC14 is a bad choice for an xtal oscillator, the unbuffered non-Schmitt trigger HCU04 is much better for that application
  • Bill F: I'm ready for one!