Wickerbox Electronics

Hardware Prototyping

MMA7660 Breakout Board

Breadboard-compatible 3.3V 3-axis accelerometer. The I2C lines already have 1K pullup resistors, so you don’t need any other components.

The Github repository has the manufacturing files. The project is released as open hardware under the CERN v1.2 Open Hardware license.

I’ve shared the project at OSH Park so you can buy a set of three bare boards for $1.25, or $0.41 per board. The parts are available at Digikey.

If this is your first time building a board, check out our assembly howto and remember to always buy a few extra of the capacitors and resistors. They’re very small, easy to lose, and often cost 30 cents for three but $1 for 100.

Ref Qty Description Digikey PN
C2 C1 2 CAP CER 0.1UF 25V X7R 0805 1276-1099-1-ND
J1 1 HEADER MALE 5POS TH 1x05 0.1” 952-1902-ND
R1 R2 2 RES SMD 1K OHM 1% 1/10W 0603 1276-3484-1-ND