[dorkbotpdx-blabber] Gyro & Accelerometer chips (up for grabs...)
Jason Barnett
jason.barnett71 at gmail.com
Mon Sep 26 00:06:24 EDT 2011
You can count me in as well. One of the accelerometer chips and breakout
boards would be great to mess around with. If anyone else actually has a
need for them, please give them priority over me.
Jason
On Sun, Sep 25, 2011 at 6:33 PM, Greg Peek <gpeekx at gmail.com> wrote:
> Paul,
> I have a couple projects in my todo list that would need an accelerometer.
> I'd be happy to trade a beer for a kit or two.
>
> Greg
>
>
> On Sun, Sep 25, 2011 at 4:25 PM, Paul Stoffregen <paul at pjrc.com> wrote:
>
>> I have some leftover accelerometer and gyroscope chips, breakout PCBs, and
>> misc parts. Does anyone want 'em?
>>
>> The accelometers are MMA7455. Here's the info.
>>
>> http://www.dorkbotpdx.org/**blog/paul/accel_only_breakout_**board_working<http://www.dorkbotpdx.org/blog/paul/accel_only_breakout_board_working>
>> http://www.dorkbotpdx.org/**blog/paul/accel_only_breakout_**board<http://www.dorkbotpdx.org/blog/paul/accel_only_breakout_board>
>>
>> I built one board and it worked great. I believe Scott built a few.
>> Several kits were given out (everything but the chip, for free - beer if
>> not built), but I'm not sure who ever got around to building them. The
>> parts are extremely tiny.
>>
>> The gyro chips are LPR530AL (qty 2) and LPY530AL (qty 1). I have some
>> breakout boards for those too, but they were never tested, nor documented
>> much. They're pretty much the circuit right out of the datasheet, plus a
>> MCP1700 3.3 volt regulator and a 2-mosfet I2C level translator, so it should
>> be pretty easy to figure out.
>>
>> These are previous generation gyro chips, which only sense 2 axes each and
>> they have only analog outputs. I think the gyro chips were about $7 each,
>> and the accelerometer chips about $2 each.
>>
>> Does anyone want this stuff? I don't want cash, but a beer would be nice?
>>
>>
>> -Paul
>>
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>
>
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