Arduino Simulator – [Link]
This Arduino Simulator app gives the user the freedom to work without the basic setup of hardware and software. It is designed to be used by beginners and also, experienced developers, who want to quickly develop Arduino projects.
The developer can make the necessary changes in the code – delay, pin number, and state – 0 (low) 1 (high) – and check it immediately. The app shows the breadboard, complete with 14 LED pins.
You can drag and place the wires in the correct positions to connect to Arduino. If the wires are placed according to the code, then it will show the expected results. Once satisfied, you can save it and email it. The code can be copied and used in an actual project just as easily.
This app is an easy way to work through Arduino projects. With customisable codes, and a simple to use interface, this Arduino Simulator app from Schogini Systems is a convenient app for Arduino developers.
Arduino Simulator - [Link]
TJ writes – [via]
I made a sprinker system controller using arduino and your RTClib (thanks!). It has telnet features using a wiznet module to remotely control it and configure water schedules. I’ve also open sourced the code on github for anyone who’s interested.
Arduino water sprinkler control - [Link]
Easily measuring inductance with Arduino. Handy if you’re building a LCR meter! [via]
Easily measuring inductance with Arduino - [Link]
Build a ‘Klout Klock’, track your influence and time… [via]
Klout exposes a web service enabling developers to build mash-up applications around its metrics and all that is required to play is an API key which is easily obtained when registering an application. My application is the “Klout Klock” device and before getting into the details of building it, you can see it how it works in this video…
The clock is built using a Netduino Plus and an AdaFruit ST7735 TFT screen. I have described how to connect them together in a previous post here. In that post, I had indicated that managing such a TFT screen from a Netduino was sub-optimal due to the memory requirements involved. That statement is even more true with a Netduino Plus which has roughly 28KB of RAM available for an application. This means that allocating a 40KB buffer to manage the TFT display as I was doing it previously is out of the question.
Build a ‘Klout Klock’, track your influence and time - [Link]
András Veres-Szentkirályi found an old CGA monitor and wondered whether it could be repurposed for use with an Arduino. He noted that CGA monitors use inexpensive DB-9 connectors, the signals are TTL (0-5V digital), the
clocks are in the range of cheap microcontrollers (HSYNC is 15,75 kHz, VSYNC is 60 Hz), and yet 640 by 200 pixels can be drawn in 16 colors.
He dug through old technical data on CGA and worked up the necessary code, posting the results on his blog.
He believes further development is possible to clean up the timing, so his next step will be to use plain AVR C/C++ code to avoid Arduino overhead allowing finer control over the timing. He would also like to create a character map in the Flash (PROGMEM) and code up a library that would allow the display of text or simple graphics.
Arduino driving CGA display - [Link]
LabVIEW Interface for Arduino Thanks Jose!
The LabVIEW Interface for Arduino (LIFA) Toolkit is a FREE download that allows developers to acquire data from the Arduino microcontroller and process it in the LabVIEW Graphical Programming environment. For more information, check out the Getting Started with the LabVIEW Interface Toolkit video tutorial from VI Shots.
LabVIEW Interface for Arduino – [Link]
Following the announcement here:
The Zigduino is a pin and code compatible OSHW Arduino variant based around the ATmega128RFA1. This gives it a number of useful features above and beyond a stock Arduino:
- Built-in 802.15.4 transceiver
- Hardware AES-256 encryption module
- 128K of flash
- 16K of RAM
Zigduinos for Sale - [Link]
A Gentle Introduction to Netduino, great starter! [via]
This “guide” started as pretty basic article and turned into a slightly more expanded guide on electronic design and programming techniques for Netduino. To knowledgeable users, some topics may seem gone too much in depth and detail even for “basic” subjects. However, the aim was to provide beginners with knowledge and confidence they need to become advanced enough so that to design successful microcontroller projects by themselves. Additionally, it is always a good idea to understand how things work, even when we can achieve the results using LEGO approach with shields.
A Gentle Introduction to Netduino – [Link]
Arduino has an analogWrite function. But how do you convert a PWM signal to a voltage?
It covers basic PWM, changing your PWM freqency, and and to design a simple R/C filter, including making use of some great online tools.
Arduino’s AnalogWrite – Converting PWM to a Voltage - [Link]