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Re: Hot 7805

 by tozian ¦  Tue Mar 25, 2014 10:26 am ¦  Forum: Projects ¦  Topic: Hot 7805 ¦  Replies: 9 ¦  Views: 1017

Mee_n_Mac wrote:The OP didn't say whether his/her Pi was an A (1.5W) or B (3.5W) model. I'd have estimated about a 1 W load from the case temp so it could be either a working A or a loafing B.
B! It's a B!

Hot 7805

 by tozian ¦  Mon Mar 24, 2014 9:21 pm ¦  Forum: Projects ¦  Topic: Hot 7805 ¦  Replies: 9 ¦  Views: 1017

I got a 7805 regulator from SFE. I have a 10uf capacitor on the input (which is nine volts) and a 100uf capacitor on the output. I then use that to power a Raspberry Pi. The regulator gets up to 176 degrees Fahrenheit. Is that a safe temperature?

Gertduino

 by tozian ¦  Wed Jan 22, 2014 8:14 pm ¦  Forum: New Product Ideas ¦  Topic: Gertduino ¦  Replies: 0 ¦  Views: 620

I thinkg SFE should sell the new Gertduino. It was created by the same guy who invented the Gertboard (duh!). It's completely Arduino compatible and sits on top of the Raspberry Pi. It also has the same Arduino pinout so it should work with most sheilds. It has 6 built-in LEDs, an IR reciever, an RT...

Re: Cutting holes in cases

 by tozian ¦  Wed Jan 22, 2014 7:55 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Cutting holes in cases ¦  Replies: 11 ¦  Views: 1646

KeithB wrote:For plastic cases I tend to use my soldering iron.

That doesn't smell very nice. :?

Re: Cutting holes in cases

 by tozian ¦  Wed Jan 22, 2014 7:48 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Cutting holes in cases ¦  Replies: 11 ¦  Views: 1646

A Dremel is nice tool to have around for making a variety of cuts / slots / holes / etc... Just here to say, in essence, 'me too'! Seriously though, a handheld powertool (whether that's an actual Dremel brand or any number of similar tools) with a myriad of accessories is far from costing an arm an...

Cutting holes in cases

 by tozian ¦  Mon Jan 20, 2014 12:59 pm ¦  Forum: SparkFun Product Questions ¦  Topic: Cutting holes in cases ¦  Replies: 11 ¦  Views: 1646

Is there any way to cut holes into aluminum cases without an electric saw? (Or some tool that costs and arm and a leg?)

And if that's not possible how do you cut holes in plastic cases?