Archive for the ‘Bare Bones’ Category

Arduino Powered 2.4 GHz Spectrum Analyzer Lets You

Wednesday, August 10th, 2011

Arduino forum user [Blibo] shares its 2.4 Ghz spectrum analyzer project on the forum. The project is based on the CYWM6935 board (wireless), an Atmega 328 and a Nokia 5110 LCD-

I finished the (mostly) permanent version of my 2.4ghz spectrum analyzer, and soldered it up. I included 3 modes for scanning (fast, slow, and ghost – like the long exposure on a camera), plus a function to display the voltage on an analog pin, and graph it (for when the oscilloscope’s not cooperating). These modes are toggled through by hitting the big push button […] I have already used it to help setup my wireless network, (channel, location, things that cause interference), and it is always interesting to see what uses the 2.4ghz spectrum. So far, the things that I’ve noticed on the spectrum while walking around with the analyzer are: 
-microwave ovens (huge disturbance in the middle of the spectrum)
-Cordless phones
-Wireless keyboard
-Wireless speakers
The fast mode is ok for seeing EMI, but for digital signals, the slow mode is best. The ghost mode also gives a general idea of spectrum use over a period of time.

via [HackADay] source(code) on [Arduino Forum]

Arduino-based Video Sorcery

Thursday, July 28th, 2011


Wonderful Arduino video sampler from [] (At the moment in its 1 bit / 1 and half bit stage) . The project is based over [TVout] library, [Video in on TVout] and [Ram library and 23k256 circuit]. Amazing job.

If you dig the 8-bit style colourful site you’ll discover several other video oddities based on Arduino (or at least Atmega328), well explained and referenced by the [Gijs Gieskes].

via []

Minimalist Arduino

Tuesday, June 8th, 2010

Barebone Tuesday. Nice tutorials.

Here at the Transistor, we love the Arduino platform, so we decided to make our own Arduino Clone. The Minimalist Arduino is designed for use in permanent or custom circuits on solderless breadboards, stripboard, or custom PCBs. It contains only the bare minimum parts required for building the Arduino platform. The schematic for the board can be downloaded here (pdf). Please read all instructions on this page before assembly. The parts list is as follows, with linked manufacturer datasheets when available:

(1) ATMega328P
(1) 28-Pin DIP Socket
(1) LM7805 1A 5V Positive Voltage Regulator
(1) 16.000MHz Clock Crystal
(2) 22pF Capacitor
(2) 10uF Capacitor
(2) 100nF Capacitor
(1) 10kOhm Resistor
(2) 150 Ohm Resistor
(2) Green 3mm LED

via [TheTransistor]

Burn bootloader for Arduino Duemilanove

Tuesday, April 20th, 2010

[James Wilson] knows how to play the game, and share with us a very useful guide using avrdude 5.10 (on Ubuntu 9.10).

This is using a new Arduino Duemilanove board with a regular Atmega328p, with no bootloader. I wanted to do the BitBang mode, since I didn’t want to get or make anything else, and the ArduinoISP, I didn’t have access to another Arduino. So I pieced together 3 different guides, I finally got it working.

via [James Wilson]


Wednesday, April 14th, 2010

Check-out this really long blog post about a 4×4 rgb cube. Well detailed.


Control your DSLR with a Nintendo DS

Wednesday, March 17th, 2010

Techincally, this is one of the reason Arduino was created: helping prototype new users interfaces; openSource.

Here’s the Nintendo DS DSLR Trigger. Arduino Based (or, at least programmed. It’s based on Atmega 168) + Open Source Applications on Ninetndo DS.

via [MAKE] [OpenCameraControl]

DIY Toner Transfer Circuit Etching *UV* Developing [from Beloved MAKEzine]

Tuesday, March 16th, 2010

Today is the “circuit etching” day. I wanted to enlarge the disussion of this previous post, by embedding this nice tutorial on Circuit Etching from Colin Cunningam of Make.

via [MAKE]

DIY Toner Transfer Circuit Etching

Tuesday, March 16th, 2010

Well. As most of you I begin my day hanging around in different forums. One of them (one of the firsts) is the Arduino Forum, with his new layout.

In these day a thread took my attention: P18F4550 made his first Arduino Shield. When questioned to make a step by step guide of the all process he posted wonderful pics of the all thing.

[from P18F4550 on the Arduino Forum]

Design the circuit, i use PCB Wizard

Basic Arduino [BareBones]

Thursday, March 11th, 2010

What an interesting image! Check out the translation from the previous blog post in english, for the cheapest DIY Arduino.

Nice step by step guide to the cheapest Arduino.

via []

Motoruino is the new Arduino for creative robotics

Tuesday, March 9th, 2010

Nice Arduino-Motor PCB made by Guilherme Martins and his friend David Palma

Still looking for a Buy button somewhere in the site.  Maybve we’ll have to wait for the next black batch to be produced for that 😉

main features of the board:

– easy to use, understand, play with;
– must be a plug-and-roll board;
– to be suitable with shields, and with regular Arduino Diecimilla/Duemillanove boards;
– the usage of the H-Bridge is open, i.e., there aren’t any Arduino output pins assigned, the user can use the bridge the way he/she wants;
– motors supply and PWM pins might be used with external voltage or regulated 5 volts
– motors have 3 different connectos, screws terminals, male headers, JST connectors
– two possible FTDI/USB connections available