Member Since: July 4, 2013

Country: Canada

  • The specs in the datasheet make this sensor look less accurate/precise than the HTU21D, but this one’s datasheet seems to be trying to be more honest than usual about the accuracy of this sensor, and this one’s more expensive, suggesting better performance. So I’m not sure which one will provide better results for applications that need very accurate or precise readings. Any insight?

  • Assuming you’re using their built-in ADCs, do they have the same reference voltage? I don’t remember if the ATmega328P has configurable internal reference voltage. Even if not, maybe one of them has a bad voltage reference circuit. Maybe also try using external reference voltage via the Aref pin—though I don’t know if the LilyPad breaks that out.

  • This thermocouple sensor is more appropriate for high temperatures. Thermocouples are analog, so the accuracy and resolution depend on the thermocouple amplifier and ADC you pair it with.

  • Perhaps you forgot to #include the OneWire library?

  • Check out the ones by Carnegie Mellon students; they have an FPGA course where they have to build something useful as a final project. Hackaday often has posts about them around this time of year (which is when they’re done) and has had a few posts on them recently. There are some on Hackaday.io as well.


    Careful with the trademarks there :D

    (And why do all of those links go to Google searches for the intended URLs?)

  • Mains wiring. A Thermos. The bolts that hold the wheels on a car. Any household appliance (clothes washer/dryer, dishwasher, toaster…). A comb. The fences and obstacles for AVC, or the robot combat enclosure.

  • “I will make these Actobotics parts as aerodynamic as any of the planes on the wall… even if it takes me a thousand CFD simulations!”

  • I really hope this Cypress–SparkFun collaboration results in the possibility of programming PSoCs without needing to use Windows to do it. I got a PSoC 4 Pioneer kit about a year ago, and haven’t done anything with it other than blinking the LED, just because it’s inconvenient to have to reboot into Windows to program it.

    I did ask the PSoC team on reddit whether they knew of any way to program it on a Mac without using Windows (either dual-boot or virtualized) and they didn’t at that time.

    P.S. Isn’t that a Hydra, not a Cerberus, in the thermal printer demo video?

  • What is “Moment Beared Temperature”?