zedomax.com » PIC

Bluetooth Accelerometer

max — Sun, 25 Feb 2007 18:40:30 +0000

Check out this PIC based bluetooth accelerometer that you can use for your future wireless accelerometer applications.

This is a small wireless sensor platform providing a bluetooth SPP link to three axes of accelerometer data. The accelerometers are sampled by a PIC microcontroller (onboard ADC) at roughly 100Hz (rate can be changed via firmware). Data from the ADC conversion is sent to a remote computer using the PIC’s UART in conjunction with a drop-in bluetooth serial part. Even with two dual-axis accelerometers onboard there are up to 17 free I/O lines and two additional ADC channels depending on the device configuration. Three sockets provide access to all PIC signals. Over-the-air programming allows for easy firmware updates and rapid prototyping without the need to have a PIC programmer or special cable. Schematics, parts lists, and firmware sources are available online.

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Bluetooth Accelerometer

DIY – IMbot

max — Sun, 11 Feb 2007 07:12:43 +0000

Download latest version of Flash to view video!.

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Download latest version of Flash to view video!.

Click Here to View in Full Screen Mode

Here’s a cool IM-bot, which let’s you know when your friends are online. This one is for Linux
but it shouldn’t be too hard to make it yourself using a PIC 16F628A or any other microcontroller.

To make the device, you first need a push puppet. A push puppet is a small articulated character composed of several body parts held together by several strings that run through them under tension. The strings are all connected to a large spring-loaded button under the base. When the button is pressed, the strings go slack and the puppet collapses. When the button is released, the strings pull the puppet back to its normal erect shape. More information on push puppets can be had at http://www.pushpuppets.com/. Push puppets are cheap toys for small children, and can be found at most serious toy stores. Mine is a wooden dog from the “farm animals” series, made by Toys Pure. I paid 2.77€ for it and I find it much cuter than the Availabot guy. What’s more, it doesn’t “drop dead” like the Availabot guy when the button is pushed, but instead drops its head and bows its knees, which I find nicer.

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DIY – IMbot

DIY HACK – Oscilloscope using PIC

max — Wed, 03 Jan 2007 06:24:09 +0000

Here’s a cool DIY oscilloscope using a PIC12F675 kinda similar to the Atmega Atmel Oscilloscope.

This is a simple PC voltage oscilloscope using only a PIC12F675, a 20MHz oscillator, and a RS232 level shifter. The PIC takes a sample on GP2, immediately sends it to the PC at 115,200 baud using an software asynchronous serial routine, and repeats. It sends a 8-bit value that is read by the Visual Basic software and displayed on the screen (see examples below). The Visual Basic software deduces the time period between submissions and adjusts the display accordingly.

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DIY HACK – Oscilloscope using PIC

HACK – PIC USB Programming, a Hackaday Competition Entry

max — Mon, 01 Jan 2007 04:10:17 +0000

Here’s a cool PIC USB programmable microcontroller. Cool…a hackaday competition entry…

“This design uses the Microchip PIC 18F2450 or 18F2550 USB enabled microcontroller. The total parts cost is around $15 including the microcontroller for a single board. The board features a USB port that can be used with a bootloader for easy programming. It is designed to use a 20MHz crystal. Two switches are included, for MCLR and RC0. Five analog inputs are brought out (AN0-AN4) which can be used to read analog sensors, as well as the two CCP ports which can be used to control servos or other devices. A user LED is built in, using RA4. The onboard USART ports are brought out to a three pin header which can be used to talk to other microcontrollers, or to an RS232 device with a MAX232 level converter. The whole of PORTB is brought out to a header, as well as a pair of power headers. An ICSP header rounds out the board for programming the PIC.

via

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HACK – PIC USB Programming, a Hackaday Competition Entry

DIY HACK – Pyramid Color Changing RGB using PIC!

max — Sun, 31 Dec 2006 11:21:23 +0000

Here’s howto make your own Pyramid mood changing lamp. This is a lot better then one you can
buy at the mall for like 20 bucks!

Kinda like our Light Orb Alarm Clock, but it’s a pyramid!

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DIY HACK – Pyramid Color Changing RGB using PIC!

DIY HACK – “Propeller Clock” Mechanically Scanned LED Clock

max — Thu, 28 Dec 2006 10:11:17 +0000

Cool propeller clock you can make!

How this clock works:
A motor spins the “propeller”, and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion, but it works nicely.

If you want to build this clock, you will need a few things, including:
Skill with motors and mechanical things.
Prior electronic experience.
A dead VCR or floppy drive or other source of a suitable motor and miscellaneous parts.
A programmer that will program a PIC16C84 or 16F84 microprocessor.

via digg

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DIY HACK – “Propeller Clock” Mechanically Scanned LED Clock

DIY HACK – How to build a USB device with a PIC

max — Sun, 10 Dec 2006 09:39:27 +0000

Here’s a cool DIY on how to make a USB device with a PIC via .

They also have a simple howto on making a USB thermometer to get you started right.
The code looks pretty simple for anyone with prior PIC experience.
You could probably use this for making your own wii controller device for PC.

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DIY HACK – How to build a USB device with a PIC

Hackaday – Binary Clock HACK

max — Fri, 08 Dec 2006 10:12:40 +0000

cool hack…!@!

[Walter] sent in his version of a PIC binary clock. It’s a nice alternative If you don’t want one that runs off TTL logic, This one runs on a PIC 16F628 (Microchip is great for samples) and displays hours in 5 bits and minutes in 6. His blog also features a decent looking programmer, and he shows off his version of the Suunto dive computer interface that’s been around for quite a while.

via

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Hackaday – Binary Clock HACK

Choice of On-board camera for embedded apps : CMU Cam

max — Tue, 28 Nov 2006 03:23:56 +0000

You gotta check out CMUcam if you haven’t yet. It can be controlled via a serial communications
to processors such as PIC, CUBLOC, Basic Stamp, Make Controller, and etc…

It’s a camera that was designed by Carnegie Mellon and has been around for awhile so it might be
a good solution to go with instead of starting all over from scratch.

The website explains as follows:

CMUcam is a new low-cost, low-power sensor for mobile robots. You can use CMUcam vision system to do many different kinds of on-board, real-time vision processing. Because CMUcam uses a serial port, it can be directly interfaced to other low-power processors such as PIC chips.

At 17 frames per second, CMUcam can do the following:

track the position and size of a colorful or bright object

measure the RGB or YUV statistics of an image region

automatically acquire and track the first object it sees

physically track using a directly connected servo

dump a complete image over the serial port

dump a bitmap showing the shape of the tracked object

Using CMUcam, it is easy to make a robot head that swivels around to track an object. You can also build a wheeled robot that chases a ball around, or even chases you around. In the Gallery, you can see pictures and videos of some of the robots we and others have built with CMUcam.

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Choice of On-board camera for embedded apps : CMU Cam

DIY HACK – PIC based Serial Controlled RGB LED PWM Driver

max — Mon, 27 Nov 2006 20:21:16 +0000

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Cool little LED control using PWM of PIC.

If you want to play around with some LEDs, why not hook them up to some brains (a PIC chip) and have some fun. Pete provides all the details you will need to create your own Serial Controlled RGB LED PWM Driver. The provided firmware will run on the following PIC chips: 12F629, 12F675 and 12F683.

via

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DIY HACK – PIC based Serial Controlled RGB LED PWM Driver

Educational Circuits for Kids

max — Mon, 06 Nov 2006 18:26:13 +0000

Here’s some cool educational circuits for kids.

They’ve got some cool circuit building kits such as voice-controlled circuits,
light-activated experiments with what seems like safe-to-use circuit parts.

Later on, they can start modding with easy-to-use electronic circuit board such as CUBLOC, Basic Stamp,

or even get into real low-level circuit building with AVR, PIC, well, that’s really expecting too much…

via gizmodo

Here’s an additional list of Circuit 101 for kids:

NASA

Electronics for kids

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Educational Circuits for Kids

DIY Circuit – Door Unlocker

max — Mon, 23 Oct 2006 02:55:30 +0000

Cool door unlocker based on PIC16F630 microcontroller and a stepper motor…I need this since I’ve broken my door before due

to locking myself in…

via hackaday

via make

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DIY Circuit – Door Unlocker

Zedomax DIY 115- HOWTO establish serial connection with PCs bluetooth 2.0 with ACODE-300

max — Wed, 18 Oct 2006 21:55:56 +0000

Okay, today at work I have been getting a lot of calls on how to connect the ACODE-300 serial to bluetooth converter module to a PC or Laptop with bluetooth…

Well since the ACODE-300 is bluetooth 1.1 compliant and bluetooth 2.0 is backward compatible, the ACODE-300 should have no problem in establishing serial connection with a PC.

Why do you need this?

Well let’s say you are using an MCU (Microcontroller) such as AVR, PIC, Make Controller, Basic Stamp, or CUBLOC. If you were to use the ACODE-300 module on the MCU side and if you wanted to write a customized C++ or Visual Basic program on your PC to control the embedded module, you would need to know this.

via Link

via Link [html in English]

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Zedomax DIY 115- HOWTO establish serial connection with PCs bluetooth 2.0 with ACODE-300

Circuit – Build your own velocity monitor for paintballs

max — Wed, 13 Sep 2006 17:06:33 +0000

Here’s a circuit for velocity monitor for paintballs using a PIC microcontroller.
[via] designnews

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Circuit – Build your own velocity monitor for paintballs

zedomax.com » PIC

Bluetooth Accelerometer

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