One of my recent projects has been to make a custom mechanical keyboard and I was hoping to make also a custom trackball but researching what kind of sensor could be used I have found that all of them are obsolete!
Does anyone know a "mouse sensor" IC that can be purchased in low quantities on the regular distributors?
Parts like ADNS-7700 from Avago, VD5377 from ST, CYONS1001 from Cypress are all obsolete and without replacement... Apart from finding a suitable IC I just find it curious that basically all the ICs for this application have banished from the market!
I have only found ICs from the company pixart like the PAW3305DK but doesn't seem to be available outside aliexpress and I'm not sure if this is an active part or not...