hy thx again for your responses,
yes i tried it without the sensor connected and it works as it should
hm not sure if i did get your second point, where you explained how that could be
so - if i understand right it means the device works and holds down the CLK line and my arduino waits for
an high impulse on the CLK ?
ok i now look at my old IC´s if there is an other I2C device and test this and try if i get it running, when my sensor dont want to work 