Member Since: March 29, 2007

Country: United States

  • This is a higher pin count chip (100 pin QFP instead of the 68 pin QFN) so you have more IO pins. The internal circuitry is the same.

    Also this board can operate at either 5V or 3.3V making it easy to hook up to 3.3V peripherals. The CY8CKIT-059 is fixed at 5V.

    Other than that, not much.

  • Pretty neat! I think this is the link with the design files.

  • So it appears that while the Curie module on the Tinytile has battery charging circuitry, the functionality was not included on the board. According to this thread: “The reason why the battery charging feature was not implemented on the Arduino 101 is because the standard Arduino I/O pin layout does not have the provision for a battery charger. External hardware is needed for multiplexing the charger interface to the standard I/O pin.”

    This module is so, so close to the perfect IoT/wearable sensor with on-board pattern rec, BLE, and motion sensors but ultimately misses the mark. It would have been simple to break out the necessary pins for charging a small lipo battery. The really frustrating thing is that the reason the battery charging circuitry was left off the board shows that the designers have a basic misunderstanding of how the board would likely be used.

  • I know I’m a little late to the party, but in the past I’ve fixed this mistake with a tiny piece of polymide tape such as PRT-10687 on the board.

  • It’s not sturdy at all. I have to redo a board because these connectors are popping their landing pads off the board at the slightest amount of stress. Moving to a through hole micro B part.

  • Thanks! Ignore the customer service email I just sent.

  • The link to the STK Experiment Guide and the Getting Started button both return 404 errors.

  • That’s quite a Caucasian sausage club.

  • For folks thinking about attaching a second load cell here’s some datasheet info on channel B. It is not quite as sensitive as channel A.

    Channel A differential input is designed to interface directly with a bridge sensor’s differential output. It can be programmed with a gain of 128 or 64. The large gains are needed to accommodate the small output signal from the sensor. When 5V supply is used at the AVDD pin, these gains correspond to a full-scale differential input voltage of ±20mV or ±40mV respectively.

    Channel B differential input has a fixed gain of 32. The full-scale input voltage range is ±80mV, when 5V supply is used at the AVDD pin.

  • I have to admit that instead of using these FTDI boards, I usually use a a Teensy 2.0 programmed as a USB to serial converter. Its a buck or so difference in price but then I can always build some smarts into the converter to suit my application.

No public wish lists :(