Oops, lol. Try again. On Thu, Aug 11, 2022 at 2:44 PM Russell Senior <[email protected]> wrote: > > On Thu, Aug 11, 2022 at 1:59 PM Rich Shepard <[email protected]> wrote: > > > > I've no experience with SBCs while many here have such experience. I want to > > build a small temperature recorder that takes input from a thermocouple > > probe, converts the changes to temperature (F and C), and writes the time > > (from start) and temperature to a removable storage device. > > > > There are inexpensive units that do this but the maximum temperature is > > limited to about 150F, and I need a range to 500F. > > > > The use is recording coffee roaster outlet temperatures each second. I'll > > transfer the data to a desktop and plot the rate of rise of the air exiting > > the roasting chamber since I cannot directly measure bean temperature (and > > that's less accurate and meaningful in any case.) > > > > Would an Arduino, Raspberry Pi, or other SBC be appropriate for this? Also, > > suggestions for a sensor module and other components are certainly welcome.
The worldwide supply of raspberry pi's available through ordinary retail channels is zero right now (or was the last I looked). But they'd be a good choice. The missing information is "how far away is your coffee roaster?" If you are close enough, you could use a microcontroller like an arduino or similar and interface with the sensor of your choice directly to a PC over USB. Your range with USB is usually 5 meters. I don't know very much about measuring temperatures up to 500F, I am mostly interested in air temps and related phenomena. Look on some place like adafruit.com for a sensor and how to interface with it. -- Russell
