Ok, went over the USB pins 4x times now…they are correct…even drew out a picture of the connectors and the pins…and oriented it to the board…and fixed the DCP pins as well…with the original yes I had to reverse the D+ and D- pins, with the U1 flipped didn’t need the vias
ok…I’m done…files and everything are in the dropbox repository…if you want to doublecheck…please let me know…thanks
Excellent work, WarHawk-AVG! I will be sure to give this one a shot once my other projects are finished up. Stupid tube amp.
Final revision up…triple checked (even printed out the components, laid them out on paper to ensure the pinouts and everything was correct)
Rounded the edges so the board won’t be as sharp or stabby in your pocket or bag or whatever
I had it correct for the USB connections on my first try, I kept second guessing myself and ended up mucking it up, I did have the D+ and D- backwards, with the orientation on the board the way it is now, don’t need the vias thru the board straight shot to the OUT USB connection
Love to see a picture of this when you get one put together. So close to buying the set up to put one together myself.
I am going to order a set, today is payday, and I don’t think $3 will break the bank
Then just have to order 3X components and just put together, then to test em out
Boards are at fab…ordering the components
Sorry if this is obvious to learned souls like Warhawk, but there is nothing to flash right? Just solder paste and heat. I think this would make a nifty little gift or “stocking stuffer” for folks this Christmas season and I intend to make a bunch. Just going to wait to see how Warhawk fares with his tests after building.
What does this device do?
It ensures your device charges at full speed.
A device will not charge at full speed unless it sees the coding it wants on the usb pins. Problem is, there is no standard. Android wants one code, Apple wants apple code and a few others want different codes.
This chip will adapt and always present the code needed for max charging speed. It switches among 6 different coding schemes.
And as a side effect it will prevent juice jacking. A USB charging port stealing your devices’s data and/or injecting malicious code.
Took me 6 tries to get simple board made, not that learned, but what halo said, automatic ranging of charge scheme, also have tested the chips on my dual port DCP enumerator I made, that one unlike this one needs external power source, this one uses power available and provided by USB port it’s plugged into
Forgive my noobness…but how does this connect to an item you want to charge? Is it a board you install internally, or does it have some sort of USB in/out and connect via charging port, between charger and item to be charged?
Yes, USB male in on left (in), USB Female on right (out), looks like this
But automatic due to chip, not static based upon resistors
Just plug and play!
Standard usb female port at one end, standard usb male plug at the other end.
AKA it just works. Whatever you plug in. Max charge speed + juice jack protection.
That $10 usb condom does not do full speed charging. It prevents juice jacking but they don’t mention it does slow charging only. No intelligent chip.
Yup yup
:bigsmile:
Thanks for the quick response.
Can this be ordered as a complete item, build kit, or…just a board, and we buy the parts separately from digikey/mouser/ebay? Will a housing/cover be part of the get-up, or is the board just left exposed?
I am amazed at the talent an ingenuity of BLF members. Nicely done, WH!
So far just board, I put BOM on OSHPark page and here for DIYers, but I am sure RMM might pick em up and sell em, I did it creative commons license no commercial, but put BLF on it because it’s “ours”
No cover as of yet. Need to get one for meaurements then try to figure out printable case
Very interesting, i may want a few of these, especially if RMM starts selling them
Clear 18650 shrink wrap from FT works great.
Oh yeah, al my TP4056 charger modules get that treatment now 
WarHawk, you might want to think about selling a couple!