Member #229304

Member Since: May 31, 2011

Country: United States

  • No datasheet link so I measured the forward voltage of each: Red = 1.7 V, Orange = 1.7 V, Yellow = 1.8 V, Green = 1.8 V, Blue = 2.5 V, Purple = 3 V.

  • I just uploaded a video of this robot walking, I control it via WiFi with arrow keys on keyboard.

  • Why no quantity price breaks? :(

  • Am I the first one to notice this… the JST polarity is the wrong way round!

  • I don’t think this is being too picky. I was actually confused by “a rate of 500mA per hour”, I assumed it meant that the current drops by 500mA per hour as some kind of safety feature.

  • Found the problem. The Arduino was sending strings to the RFID instead of bytes. Need to change rfid.print(number) to rfid.write((uint8_t)number) in functions: halt() and seek(). Works great now!

    I uploaded working code to: https://github.com/SebMadgwick/RFID_Eval_13_56MHz

  • Sparkfun must be the coolest company I know but if I saw you guys dancing like that, for this meme, I would defiantly lose some respect for you guys.

  • I did this and I get the “START” message but that’s it. The “Found” and “Search” LEDs don’t do anything and nothing new appears more on the serial terminal. I testing it with the tag SEN-10128 but have also tried various cards in my wallet.

    Any idea what’s going wrong?

  • I like the black JST, do you have a part# for that?

  • I just powered my up and it appeared as a keyboard. I sent the “S~,0” command to revert to SPP and it now appears as “Other”. This would seem to indicate it has HID firmware installed and that HID mode is default.