hmmmm cant i jst buy a useless radio and mod from there?

hello all.
anyone familiar with Motor-Bee?
it seems to be the simplest tool to use to control servo.
any location to get it or is there an Arduino that can do what this does?

can anyone care to link me some guide for basics of these servo stuff and the places to get the equipments?
im interested in automating simple stuff controlled by PC.

Control by PC is a bit harder. Too much work. Easier to use microcontroller. 8bit one such as Arduino is good for beginner. And yes arduino will be more than enough to do what you are trying to do.

I'm not sure in LYN got sell or not. but element14/farnell got. also many online seller such as myduino. get the older Arduino Duemilanove, can mod into programmer for ATMEL microcontroller. got FTDI chip on board yo!

A tips i got for somebody experienced in electronic is just to get a FTDI cable and ATMEGA328 with arduino bootloader. Much cheaper that way. considering one arduino board goes for rm90 nowadays. I say experienced because you will need to provide the crystal, Vcc, etc to the ATMEGA.

i've been thinking of using arduino to control it too.
previously thinking that it cant be use for that purpose.
im not an electronic guy but whats the difference between those microcontroller?

btw, if someone were to make more than 1 of the same thing.
is it have to use one of these arduino microcontroller in every system or are there cheaper alternatives?

We "buy" or "sell" Arduino is to support the original/creator of Arduino that give us such a wonderful open source hardware prototyping platform...

Without such support, there would be no innovative and "free" & "open source" product out there....

If you are new to electronics, I suggest you get the Arduino UNO board and save all the hassle of getting all the components, crystals, FTDI BoB, power supply...etc...etc..

Just download the Arduino IDE s/w , write yr program and upload to the Arduino.. it was made to get newbie started in less than 10 minutes...

You mean mass produce? You could buy a non erasable microcontroller, those One Time Programmed chips are much cheaper than the normal hobbyist use EEPROM.

Get an Arduino Uno from myduino or the homebrew tech Malaysia.

I have the Atmel programmer, so I have only one Arduino Uno. Rest of them I could mass produce them by using the programmer and with the etched Arduino serial boards at home (and of course with the blank Atmega328s).

This post has been edited by nancy86: May 18 2011, 10:57 PM

Arduino is not a microcontroller, it's a module consisting of a microcontroller, supporting circuitries and additional functionalities. I believe it is using Atmel brand of AVR microcontrollers, though I'm not really keeping up to date on the variations.
Due to the low entry cost, this is good choice for fast prototyping or for hobbyist who aren't interested/likely to make their own boards for whatever reasons.
Since it is using a microcontroller that's available on the market, it is of course possible to get cheaper alternatives by building what you need rather than buying generic options. However a certain amount of volume is needed to make it cost effective not to mention the technical skills required and the likely amount of time expended.
Put it this way, the Motor-Bee you mentioned earlier probably cost in hundreds to thousands of bucks. Getting the arduino and perhaps a programmer/debugger for Arduino probably cost in range of a few hundred buck. The cost of a single AVR microcontroller if it's anything like PIC is likely around 10 to 20 bucks.

Guys, I have a rechargeable hair cutter. Then I bought another battery for it as it seems like not enuff power to cut hair a whole head for one time charged. So i want to connect the battery to the circuit. How should I connect the 2 battery? The rating for the battery is 1.2V at 600mAh each. What is the thing I need to achieve to get it more power? The voltage or the mAh?

Short answer,
If you can fit in a single battery of the same type with same voltage but larger capacity, that's the best solution assuming you're using external charger. Otherwise, enough things can go wrong for me to say "do it at your own risk".

To answer your questions,
1. How should I connect the 2 battery?
You want to connect the batteries in parallel (+ve to +ve, -ve to -ve) to provide longer runtime. HOWEVER, note that connecting batteries in parallel without some sort of balancing circuitry is not advisable in the long run, as the minor in-balance inherent in real life can potentially shorten the batteries lifespan.

2. What is the thing I need to achieve to get it more power? The voltage or the mAh?
mAh is what you want, i.e. the larger this value, the longer it can run under similar conditions.
One 1200mAh battery == two 600mAh battery connected in parallel (assuming ideal conditions or course).

It'd be good to know what kind of battery is it, and how are you charging the current one that (I assume) comes with the hair cutter, and the newer one you've bought?

We have some MSP430 MCUs here in stock...

http://store.aztronics.com/index.php?route...ategory&path=38

Guys, anybody here that can build a LED suit @ Tron? I need to build 2 suits... anyone interested pls pm me with the costs.

Greatly appreciated.

got spare atmega328 bro? i burned mine working on last semester projects.

Guys sorry for noob question, what is ~ in the pics above? wanna try diy this.

It's a fuse, meant for protection in case of over-current. I too tired to think what rating and type to use. Try using the biggest ones you can find in cars.

hey guys.
i just wanna ask,is there any freeware for simulating a PIC for my C coding?
I just wanna try if I can really code it before I invest on it for my final project
thanks

SourceBoost IDE has some simple simulations, though I've never tried it. The limited version is free though, so good for exploring.

hello guys,

i need to know

where the place i can print & etching my pcb at jb or kl (sigh..) ?

I'm already prepared my pcb layout.. huhuhu TQ

mudah.com..

I found this SolarPump quite interesting and I would like to built a miniature copy of it..

http://soldesignlab.com/projects/solar/sol...tion/index.html

I found the below two Solar retailers that sells Solar Panels, batteries and accessories..

http://solarpower-mart.com/home
http://www.solarvoltaic.com/


Anyone that have done solar stuff care to give some comments, advise or feedback on the types of PV and batteries to use in my project..

Thanks