DIY MMA7455L 3-axis accelerometer breakout

in Arduino, DIY by DP | 4 comments

Here is a DIY breakout board for the MMA7455L, an inexpensive three-axis accelerometer. It’s got all the decoupling capacitors and pull-up resistors specified by the accelerometer datasheet.There’s also an interfacing tutorial for the Arduino.

We like this chip because it’s cheap, but the LGA package is difficult to solder. If you’re not up for soldering the tiny chip, check out our assembled MMA7455L breakout board. Get the MMA7455L breakout board for $15 at Seeed Studio.

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Comments

  1. Mitek says:

    15$ !!!! 2$ chip + 1$ pcb = 3$ + pins & caps max 3$ = 6$ max price for professional customer (who can’t make youself) and only full feature library for beginners (who already have it)

  2. ian says:

    You are right. But there is another 4 to 5 bucks to test, build, and do fulfillment. That is before our profit for designing, documenting, repairing, and supporting the hardware.

  3. kuhltwo says:

    The way I see it, if you don’t like the price, learn how to make your own.
    I think that is the same accelerometer that is on the STM32 development board

    • lee says:

      @kuhltwo is right, the hacker movement already beats the crap out of industry accepted prototype board prices (usually >$100 ‘s for a $1 dollar chip), by selling them at these prices. Any in volume developers aren’t sourcing from seeed (or others), so they only profit from prototype buyers. Which making a board for is at least a few hours of a developers time, Finding a manufacturer and pic-and-place, and you see already they are more than your $9 bucks profit margin in the hole. They are taking the risk and need to sell at least a few hundred to just break even.

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