Microprocessor and Data logger

What do you need? What is your skill level? What languages can you program in? How much data are you looking to store? How many channels? What type of environmental conditions? What is your power source? How often can you retrieve the data? What signal levels are you hoping to log? What resolution do you need on the data you are logging? Do you have any special signal conditioning limitations or considerations?

I'm not being hard-nosed, but it's a lot more complicated than what you have asked. If you want to build a one-of-a-kind system to measure how much a bridge flexes as cars drive over it during the month of December, you have a lot different considerations than if you are sampling the temperature of the water in your well several times a day or how much noise an alternator is producing as it spins up over five seconds. (all real projects)

If you are starting out and wish to build an experimental platform, purchase one of the very inexpensive developmental kits offered by Newark, such as Arduino and look at the thousands of web sites that will show you exactly what to do. Once you gain some experience, there are a lot of companies like Texas Instruments with the MSP430 micros that offer *extremely* low power.

What do you need? What is your skill level? What languages can you program in? How much data are you looking to store? How many channels? What type of environmental conditions? What is your power source? How often can you retrieve the data? What signal levels are you hoping to log? What resolution do you need on the data you are logging? Do you have any special signal conditioning limitations or considerations?

I'm not being hard-nosed, but it's a lot more complicated than what you have asked. If you want to build a one-of-a-kind system to measure how much a bridge flexes as cars drive over it during the month of December, you have a lot different considerations than if you are sampling the temperature of the water in your well several times a day or how much noise an alternator is producing as it spins up over five seconds. (all real projects)

If you are starting out and wish to build an experimental platform, purchase one of the very inexpensive developmental kits offered by Newark, such as Arduino and look at the thousands of web sites that will show you exactly what to do. Once you gain some experience, there are a lot of companies like Texas Instruments with the MSP430 micros that offer *extremely* low power.