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Posts Tagged ‘Arduino’

How to run your ESP8266 for years on a battery

Thursday, December 1st, 2016

Here's a detailed article on how to run an ESP8266 for a long time on a battery by Marco Schwartz: For most of the projects I am building with the ESP8266 WiFi chip, I usually don’t care too much about the power consumption aspect. I for example build data loggers that...

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Posted in how-to | 4 Comments »

SMD edge connectors

Monday, November 14th, 2016

Facelesstech has written an article describing a technique he used for connecting two boards together. More details at Facelesstech's blog. Check out the video after the break. (more…)

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Posted in techniques | No Comments »

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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Posted in Arduino | No Comments »

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 »

Capcom CPS2 security programming guide

Friday, September 16th, 2016

Eduardo Cruz from Arcade Hacker  writes: Dear all, after a few months of testing we are extremely happy to release the new clean desuicide / security programing method for Capcom's CPS2 hardware. This guide is the result of almost two years of work by an small group of arcade enthusiasts...

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Posted in tutorials | 1 Comment »

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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Posted in Arduino | No Comments »

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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Posted in Arduino, DIY | No Comments »

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 »

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 | 17 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 »

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