On Sun, 22 Nov 2009, frank mohr wrote: > The price is about 100 euro (using an existing GPS receiver): > > Homegrown Arduino Clone about 20.00 euro > ADXL345 - Triple Axis Accelerometer 24.95 euro > IDG300 - Dual Axis Gyro 56.00 euro I think if you do the last two parts 2x you actually get something usefull. Stefan