AT89LP C- Meter  

Low cost C-Meter with good accuracy

What you need for a C-Meter: 
one AT89LP213/..214/..216/..2052/..4052, some additional elements, (one crystal) and around 300Bytes Assembler Software.

This idea is a low cost solution with good accuracy and linearity and could be used in several applications with capacitive and resistive elements.
We would like to sell this idea to interested customer. Sorry for those readers who would like to see schematics and more. 

We have a prototype available that displays the results of measured capacities on a LCD Display. Some features of that design:

  Any input or questions are  welcome: Mail