Not sure if this is right place but thought I could ask here with regards to embedded development.
1. I once had a temperature/humidity sensor, but never figured out if it was analog or digital (it had three prong.
someone in field thought it could be digital). What would be some ways/tooling needed you could use to independently test this out?
2. In/Out on embedded boards is any suggested way to capture reads (or write), for example raw data? What about the other way around?
3. Which board here might be good to practice (or something else) doing a hello world on making device drivers. Something on easy, learning side and possibly practical that interacts with a real device.
Those questions are all too open-ended to lead to specific answers, but in general, if you don't actually need a serious OS in your project, I'd suggest getting your feet wet with Arduino and then moving on to ARM-based platforms such as Teensy when you need more power (which you eventually will.)
The advantage of Arduino is that it will give you a good introduction to embedded development and I/O principles. Working with Arduino, you'll find that the CPU is reasonably capable but that the programming abstractions are clunky, and that'll give you the excuse you need to get comfortable with direct I/O port access. What you learn along the way will apply on more sophisticated platforms.
As for the temperature sensor, it's most likely digital (I2C or similar interface). Without the part number it may be difficult to get it working. If you don't have the part number, it's best to chuck it and order one from Adafruit or Sparkfun that comes with the necessary documentation and support code. Reusing salvaged parts isn't the cost/productivity win that it used to be.
If you need more horsepower for your project than an Arduino or Teensy-class board can provide, then you would want to look at Raspberry Pi or Beaglebone Black. If you aren't already comfortable with *nix development, you have a massive learning curve ahead, for better or worse, and you're going to be spending a lot of time in Professor Google's classroom.
1. I once had a temperature/humidity sensor, but never figured out if it was analog or digital (it had three prong. someone in field thought it could be digital). What would be some ways/tooling needed you could use to independently test this out?
2. In/Out on embedded boards is any suggested way to capture reads (or write), for example raw data? What about the other way around?
3. Which board here might be good to practice (or something else) doing a hello world on making device drivers. Something on easy, learning side and possibly practical that interacts with a real device.
Thx!