Reply To: What sensors can I use?

[MintTech]

Hi,

I’ve got loads of old Lego RCX equipment in school and I was hoping I could use the touch button sensor as well as the light sensor with the Crumble. I managed to get the touch sensor working breifly but it was a bit hit and miss and now it’s refusing to work with the Crumble. The light sensor hasn’t worked at all. Has anyone used these sensors with the Crumble and got them working?

I read a post somewhere that for the light sensor you had to set the output high to charge the sensors capacitor then take a reading 1ms after. I’ve not had any success. Is it just because the Crumble is 4.5v and the Lego RCX sensors are 9v?

Any help appreciated. I can include pictures of the sensors if that helps.