Recent content by ashaw

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    Rs-232 Devices Connecting

    Note my post prior, with such a design, including all elements needed to use the UART!!!
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    Voltage Convertor

    Thanks
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    Voltage Convertor

    A while ago I posted a voltage conversion board for the Pandora on these forums, I thought now that the pandora is available, I might re-post it here. This board contains a level convertor, a LDO regulator, a boot regulator and a RS232 driver. it is designed to fit in a standard 0.6" wide DIP24...
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    Sdxc?

    technically it does not, as SDHC has the address space caped, and to make bigger cards and conform to spec they will have to use SDXC. I am sorry for not searching.
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    Sdxc?

    I ask because the first SDXC card has been released.
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    Sdxc?

    title says it all.
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    Voltage Convertor Pcb.

    gerbers and others replaced with improved PCB with corrections noted by MWeston and also including his suggestion of a 1/1 RS232 tranciever.
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    Video Playback Performance

    also the PSP has dedicated H.264 decoder silicon.
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    Voltage Convertor Pcb.

    If I get a lot of people interested than I will use the one at the top of the page Otherwise I want to make this board as flexible as possible. if the efficency of the regulation is a problem they can simply turn off the regulator and add their own though and it increases the flexibility of...
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    Voltage Convertor Pcb.

    As this one does not seem will currently have the numbers to have it made, I have designed a larger board (4x larger), that anyone can make at home. with boards to be made available approx €4 if i get interest from more than 30 people. http://www.alexisshaw.com/Voltage convertor big.pdf price...
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    Voltage Convertor Pcb.

    Note to all I am trying to gauge interest in this product, I there Is not enough interest i simply will not go ahead with production, which would be a shamefull waste of time for me, but at least I am not bankrupting myself in the process, I would not make any profit on these boards, but as I am...
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    Voltage Convertor Pcb.

    this board takes the 2.8V out of the EXT port and gives you either 3.3V or 5V It also converts the 1.8 IO voltage levels out of the UARTs and gives you either 3.3V or 5V IO levels. to get $25 I need 100 orders, $20 - 200, $15 - 500. this is at cost price, without shipping, straight off the quotes.
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    Voltage Convertor Pcb.

    I have Designed and priced a voltage convertor PCB it has the following properties: 1/ MAX1722, Step up convertor, switchable between 3.3 and 5V 2/ TXB0108, 8 Bit Level convertor, Though t keep the board size doen only 6 bits of conversion are available 3/ LP3990TL 1.8V regulator, Needed...
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    Pandora Information On The Pandora''''s Ext Port.

    Oh I have just started working on reducing the size of the board and I am certain I can make this the size of a 16 pin shrink dip package. that is 572 mil x 390 mil, so about 14.5 mm x 9.9mm. Edit. Confirmed, this part will have the form factor of a 16 pin SPDIP that is a 70 mil dip case...
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    Pandora Information On The Pandora''''s Ext Port.

    well first of all this board is 10.15 mm by 20.3mm which is much smaller than 30mmx40mm. secondly this is intended for external mods. for internal mods I can make things much more dense than this. this board is actually very sparse.
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