MMA7455L accelerometer breakout board
From DP
Accelerometers measure orientation. The MMA7455L is an inexpensive accelerometer ($2.50 in 1s), with adjustable measurement resolution of 2/4/8g.
We used this chip in the USB POV Toy to sync the POV display to the speed of the user's hand motions. It only comes in a leadless LGA-14 package. It's a challenging chip to solder, so we though a inexpensive breakout board might be useful.
- 2/4/8g
- force and pulse detection and interrupt
Get the [MMA7455L breakout board for $00].
Read about the design below.
Contents |
Hardware
Click for a full size schematic image. Schematic and PCB were designed with the freeware version of Cadsoft Eagle.
- Download the latest schematic and PCB files.
MMA7455L
PCB
Click the picture for a full size placement image.
- PCB and placement notes
- soldering advise
Partlist
| Part | Quantity | Value | Package |
|---|---|---|---|
| C1, C3 | 2 | 10uF/6v tantalum | SMC_A |
| C2, C4 | 2 | 0.1uF | C805 |
| U1 | 1 | MMA7455L | LGA-14 |
Demo
Get one!
You can [get one for $00].
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Links
License
- CC-0, reference boards shouldn't be copyrighted!