Member Since: July 29, 2009

Country: Netherlands



i love everything that has to do with electricity

Spoken Languages

Dutch,english and a little bit german

Programming Languages

Arduino(c++),Basic,HTML,javascript and SPIN






  • It can do basic detection of faces and relay information about it, but i don’t believe it can actually identify a person. at least i can’t find anything on that.

  • I think he is confused by the mention of both the 16u2 and 32u2 . Only one of them is used on any board, but the description sounds like there is a 16u2 and a 32u2 besides the 328p on a board.

  • I understand the confusion. It is pretty weirdly worded

    The serial bridge is EITHER a 16u2 or a 32u2. Apparantly some of the boards have a 16u2 instead of the more spacious 32u2, perhaps they are older or there was trouble sourcing enough 32u2. That is why they mention both of them (I think).

    So when you buy this you get one with either a 328P+16u2 or 328P+32u2… or there may be just a typo.

  • If you look carefull at the rows of headers to the right of the logo and leds on the breadboard (opposite of the reset button and between the actual breadboard and power rails) you can recognize the typical arduino layout. Even the little offset between the 2 headers (d1-d7 and d8-scl) is there.

    It is a bit hard to see at a glance, but yeah it is indeed compattible. It really is mostly a arduino with a breadboard around it and having also the serial bridge’s IO pins broken out.

  • Many sonar sensors use 40khz as it’s working frequency and yeah that is in within hearing range of animals, But the pulses created by sonar sensors are very short and not at all powerfull. It is not harmfull and none of my cats have ever responded even remotely to any of my sonar sensors, not even a twitch in the ear.

  • Sonar sensors have gotten pretty cheap over the past decade. I remember each costing atleast 15$ as a minimum and the Ping))) costing 30$ back then aswell. Now you can get sensors for a few bucks a piece. So i would guess that the Ping is just a older more expensive sensor.

    To be fair tough looking at the back of the ping it is a little more complicated in design and probably a little bit more complicated. The SR04 is pretty simplistic. can’t say for certain tough.

  • So the Power supply is one of those universal ones that is compatible with both 120 and 240v?? it aint specified and not every power-supply is compatible with both US and EU voltages

  • idk if you still need to know, but in case others want to know:

    Yes mbed LPC can be used instead of a arduino. This RGB matrix is mostly pretty rudimentary (it is basicly a very large Dot-Matrix display). In fact it is probably more desire to use something as a mbed as that has plenty of memory and processing power to control the screen quickly and do whatever else you want it to do.

    This answer applies to any ARM or FPGA device really. mbed, Teensy3.x, Arduino Due.

  • A Probably good idea is to write down it’s information if planning to plug/unplug more then a few times. That text is likely not going to last that long if frequent plugging is involved.

  • hmm. i thought these were replaced by their 16 and 32kbyte siblings on most/all sparkfun boards years ago. Have they gone by in storage unnoticed for so long?