Go Down

Topic: question before buying: clock and motor (Read 478 times) previous topic - next topic

Terraviper-5

Hi!

I want to buy Arduino Uno, but before I do that I want to know if its possible to control a motor and have a real time clock at the same time. This is important to me as I want to make a bell striking mechanism.

Thank you!

dxw00d


Terraviper-5

Thank you, now I can order it immeadeately.

Constantin


I want to buy Arduino Uno, but before I do that I want to know if its possible to control a motor and have a real time clock at the same time. This is important to me as I want to make a bell striking mechanism.


Before you buy a RTC or a motor shield, use the shieldlist.org web site to ensure that there is no conflict between the boards you intend on using. My recommendation would be using the Chronodot clock - very easy to use and program with existing libraries and very accurate also. It uses the I2C bus, which is relatively easy to implement (2 resistors, a couple of jumper wires) and the SCL/SCA pins (usually analog pins A4 and A5).

As for motor control shields, there are many to choose from. However, your problem re: motors may be even simpler depending on the strike / clapper your bell uses. A simple relay may be all you need.

BlueJakester


Before you buy a RTC or a motor shield, use the shieldlist.org web site to ensure that there is no conflict between the boards you intend on using.

Until now I hadn't known about shieldlist.org. Fantastic site. Thanks!

Terraviper-5

#5
Jul 31, 2012, 10:42 pm Last Edit: Aug 01, 2012, 12:19 am by Terraviper-5 Reason: 1
Before I saw your post I intended to buy the Arduino Motor Shield R3. I was able to get Uno in my country, but I would have to buy this shield from abroad. But what you have posted gives me more freedom to choose from, thank you! What I liked about R3 is that they raised the current limit to 2 amps. While I don't necessarily need that much juice/need shield at all for the bell, I also wanted to use this for other stuff, mostly learning in the beginning. I also read that even though it has 2 amps, people experienced quick overheat without giant heatsinks if used with robots (kind of drawback I guess).
I already have these two motors at home,
http://shrani.si/f/3C/12i/25JTGwSm/dscn0832.jpg
http://shrani.si/f/u/RE/4SrXVZ11/dscn0833.jpg
so for one of them I can experiment even without the shield. I would hate to buy a shield and then realise that its too weak to power one of my motors for more than few mins before overheating.

Also, thanks for the RTC, will take a look at it.

Edit: This thing looks like a beast: http://www.robotpower.com/products/MegaMoto_info.html

Go Up
 


Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

Arduino
via Egeo 16
Torino, 10131
Italy