Do you have a multimeter around? Can you check on the output voltages your sensor gives? And what are ideally the voltages you'd like from the sensor?
Would the Axon be good for what I'm trying to do here?
the board was one I took from a Boe-Bot kit
What should I buy so that I can get multiple levels of response and have 30 I/O pins
I assume you are looking for 30 ADC (analog to digital converters). The Boe-Bot kit doesn't have real ADC, so it fakes it through some hardware tricks. You won't find 30 ADC in any microcontroller on the market that I'm aware of, only in the expensive professional DAQ boxes you can buy. The Axon [only] has 16 ADC . . . but you could buy two of them (cough
![Tongue :P](https://www.societyofrobots.com/robotforum/Smileys/default/tongue.gif)
) to get 32 ADC, and have them communicate to each other over a UART.
Specifically I need 18 Digital input ports, and 9 servo control ports
Digital sensors are off/on. It is possible to use your touch sensors with a digital input, however you'd need external hardware to get the output voltages to the required values. That Voltage Divider device in that link can probably do it, but if you need 18 of them that'll get a bit expensive too. Making your own will be like $5/each, but will take you a long time. If you just need digital inputs, the Axon has like 50+ of them.