Member Since: February 19, 2013

Country: Canada

  • Would you happen to have an 8x8 LED grid with the same pitch as this sensor?

  • So can it be programmed to be a generic Bluetooth HID with the Nordic or MBED SDKs or is that not part of the BLE feature set?

  • BQ25570

    According to the data sheet it's only got about a 200mA charge rate and an input voltage range of 0.1 to 5.1V so it wouldn't be usable for 6V solar panels. It does seem like it would be amazing for smaller panels (down to a single cell), peltier (thermionic) devices, or even speakers. i.e. Energy harvesting applications.

    On the other hand, if the shut-down pin were broken out (on the LT3652) then you could shut down the charger and measure the OCV yourself and use a digital pot to trim the tracking voltage. But it isn't.

  • Are there any plans to make a version of this with a built in Battery Babysitter chip? (BQ27441-G1A from PRT-13777) Or perhaps a version or the Battery Babysitter that can handle the OC voltage of a solar panel? Or a breakout for the BQ27441-G1A (or similar) without the charger, that can be used in conjunction with the Sunny Buddy?

    I want to build a remote environmental sensor and I want to be able to monitor the battery health to 1) predict when the battery would need to be replaced 2) reduce reporting frequency (sensor power-up and/or uplink) if there's not much sun for a while 3) whether to increase the size of the panel.

    How much current can the load traces handle in case I need to power a boost converter?

    Do you have a part # for a 2A inductor that will fit on this board to fully utilize the 2A capability of the LT3652?

  • Has anybody used one of these to generate a Wake-on-LAN magic packet? I want to make an external power button for my laptop and an Arduino with an ethernet shield seems like it would be a bit bulky.

  • Actually sock are hermaphrodite. By default they act female but when you prepare a pair for storage, one turns into a male.

  • Since you are effectively promoting the use of 1" PVC pipe, you might consider carrying these: http://www.leevalley.com/US/garden/page.aspx?p=67332&cat=2,33141 Only the 1" size of course.

  • I would like to remove the 10K resistor from VIN to EN and connect it from EN to GND. Following the trace, it looks lite it's the one right next to the big cap by the USB jack. It looks like it is soldered right on top of the via. Could you confirm this? Could you also recomend an iron temperature for the type of solder used to assemble the board?

  • What I'd like to see is a table (grid?) showing every 'block' / module in a standard orientation (eg. receptacle facing up in the lower, left corner) and listing whether it has a receptacle, a plug, or both.

  • How about 2 ribbon cables, one going left, one going right, to 2 breadboards...

No public wish lists :(