Looks like they're selling the stock out and then that'll be it. If
anyone is interested in getting one, now might be a good time.
Note: These machines run Forth. You can place ANS Forth text files on
the SD card and it will happily compile and run them. It comes with a
number of Forth words to allow GUI interaction, SD card access etc.
Also, if you hook it up to a serial port and a terminal emulator you
get a Forth prompt and you're off.
I just bought mine! At that price, I couldn't resist it!
> Looks like they're selling the stock out and then that'll be it. If
> anyone is interested in getting one, now might be a good time.
> Note: These machines run Forth. You can place ANS Forth text files on
> the SD card and it will happily compile and run them. It comes with a
> number of Forth words to allow GUI interaction, SD card access etc.
> Also, if you hook it up to a serial port and a terminal emulator you
> get a Forth prompt and you're off.
> I just bought mine! At that price, I couldn't resist it!
> On Oct 6, 8:02 pm, Mark Wills<forthfr...@gmail.com> wrote:
>> The price of the handheld WikiReader on Amazon has tumbled from the
>> 100's of dollars to $14 (in the USA).
>> Looks like they're selling the stock out and then that'll be it. If
>> anyone is interested in getting one, now might be a good time.
>> Note: These machines run Forth. You can place ANS Forth text files on
>> the SD card and it will happily compile and run them. It comes with a
>> number of Forth words to allow GUI interaction, SD card access etc.
>> Also, if you hook it up to a serial port and a terminal emulator you
>> get a Forth prompt and you're off.
>> I just bought mine! At that price, I couldn't resist it!
Interesting. I found the info about updating the wiki info so it can be kept relatively up to date, at least for now. If they are closing them out they might not continue to provide updates. I wonder if they are replacing it with a new model?
I'd like to use these as front panels if I can get to the serial port. I'm a little confused about that. I can't find much info on it. Did I miss that? The github page talks about a console port in the battery compartment. But that's all.
Is there an easy way to connect a wall wart? Todd says it uses up to 80/90 mA when doing something, but pulster.de says one set of batteries will last a year. That doesn't add up.
rickman <gnu...@gmail.com> writes:
> Interesting. I found the info about updating the wiki info so it can
> be kept relatively up to date, at least for now. If they are closing
> them out they might not continue to provide updates. I wonder if they
> are replacing it with a new model?
I think they have pretty much given up, but I may be wrong.
It looks to me like you can deal with updates yourself. Wikipedia text
is distributed as compressed xml files (dumps.wikimedia.org) and you
would download the current dump and install it on the reader.
On Wednesday, October 10, 2012 4:09:47 AM UTC+1, Paul Rubin wrote:
> rickman <gnu...@gmail.com> writes: > Interesting. I found the info about updating the wiki info so it can > be kept relatively up to date, at least for now. If they are closing > them out they might not continue to provide updates. I wonder if they > are replacing it with a new model? I think they have pretty much given up, but I may be wrong. It looks to me like you can deal with updates yourself. Wikipedia text is distributed as compressed xml files (dumps.wikimedia.org) and you would download the current dump and install it on the reader.
Had a look at the one I just bought from Amazon and wondered where the lead would connect. Found out that the Debug connections are under a sticky tab in the side of the battery compartment. With the device upside down and battery compartment to the top and battery cover removed, the sticky cover is right of centre near you. Removing the sticky plate will reveal a hole of 8mm by 4mm that is approximately 11mm to 12mm deep. The connections are 8 flat gold pads at the bottom. I shall be looking for a suitable connector for this (even if I have to make one).
> On Wednesday, October 10, 2012 4:09:47 AM UTC+1, Paul Rubin wrote:
> > rickman <gnu...@gmail.com> writes: > Interesting. I found the info about updating the wiki info so it can > be kept relatively up to date, at least for now. If they are closing > them out they might not continue to provide updates. I wonder if they > are replacing it with a new model? I think they have pretty much given up, but I may be wrong. It looks to me like you can deal with updates yourself. Wikipedia text is distributed as compressed xml files (dumps.wikimedia.org) and you would download the current dump and install it on the reader.
> Had a look at the one I just bought from Amazon and wondered where the lead would connect. Found out that the Debug connections are under a sticky tab in the side of the battery compartment. With the device upside down and battery compartment to the top and battery cover removed, the sticky cover is right of centre near you. Removing the sticky plate will reveal a hole of 8mm by 4mm that is approximately 11mm to 12mm deep. The connections are 8 flat gold pads at the bottom. I shall be looking for a suitable connector for this (even if I have to make one).
> Paul E. Bennett
> (via Google Groups)
I've heard of people mounting a female stereo 3.5mm jack and using a
stereo 3.5mm male jack on the serial cable, giving you RX, TX and GND.
I'll see if I can dig some links up...
> On Wednesday, October 10, 2012 4:09:47 AM UTC+1, Paul Rubin wrote:
> > rickman <gnu...@gmail.com> writes: > Interesting. I found the info about updating the wiki info so it can > be kept relatively up to date, at least for now. If they are closing > them out they might not continue to provide updates. I wonder if they > are replacing it with a new model? I think they have pretty much given up, but I may be wrong. It looks to me like you can deal with updates yourself. Wikipedia text is distributed as compressed xml files (dumps.wikimedia.org) and you would download the current dump and install it on the reader.
> Had a look at the one I just bought from Amazon and wondered where the lead would connect. Found out that the Debug connections are under a sticky tab in the side of the battery compartment. With the device upside down and battery compartment to the top and battery cover removed, the sticky cover is right of centre near you. Removing the sticky plate will reveal a hole of 8mm by 4mm that is approximately 11mm to 12mm deep. The connections are 8 flat gold pads at the bottom. I shall be looking for a suitable connector for this (even if I have to make one).
> Paul E. Bennett
> (via Google Groups)
More piccies of the same sort of serial port hack:
Mark Wills wrote:
> On Oct 12, 11:57 am, paulhid...@gmail.com wrote:
>> On Wednesday, October 10, 2012 4:09:47 AM UTC+1, Paul Rubin wrote:
>> > rickman <gnu...@gmail.com> writes: > Interesting. I found the info
>> > about updating the wiki info so it can > be kept relatively up to date,
>> > at least for now. If they are closing > them out they might not
>> > continue to provide updates. I wonder if they > are replacing it with a
>> > new model? I think they have pretty much given up, but I may be wrong.
>> > It looks to me like you can deal with updates yourself. Wikipedia text
>> > is distributed as compressed xml files (dumps.wikimedia.org) and you
>> > would download the current dump and install it on the reader.
>> Had a look at the one I just bought from Amazon and wondered where the
>> lead would connect. Found out that the Debug connections are under a
>> sticky tab in the side of the battery compartment. With the device upside
>> down and battery compartment to the top and battery cover removed, the
>> sticky cover is right of centre near you. Removing the sticky plate will
>> reveal a hole of 8mm by 4mm that is approximately 11mm to 12mm deep. The
>> connections are 8 flat gold pads at the bottom. I shall be looking for a
>> suitable connector for this (even if I have to make one).
>> Paul E. Bennett
>> (via Google Groups)
> I've heard of people mounting a female stereo 3.5mm jack and using a
> stereo 3.5mm male jack on the serial cable, giving you RX, TX and GND.
> I'll see if I can dig some links up...
> The first post has pictures. Click 'em to see them full size.
> Mark
I was aiming to bring out all eight connections via a thin cable into a small box which will allow interfacing to a decent comms port. I'll make details available as and when. I shall also include the reset button and programme switch as part of the box. May even make the device sit on the box and eliminate the need for the thin cable (idea still evolving).
I think the device could end up being a useful small terminal for other programmable projects.
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
> On Oct 12, 11:57 am, paulhid...@gmail.com wrote:
>> On Wednesday, October 10, 2012 4:09:47 AM UTC+1, Paul Rubin wrote:
>>> rickman<gnu...@gmail.com> writes:> Interesting. I found the info about updating the wiki info so it can> be kept relatively up to date, at least for now. If they are closing> them out they might not continue to provide updates. I wonder if they> are replacing it with a new model? I think they have pretty much given up, but I may be wrong. It looks to me like you can deal with updates yourself. Wikipedia text is distributed as compressed xml files (dumps.wikimedia.org) and you would download the current dump and install it on the reader.
>> Had a look at the one I just bought from Amazon and wondered where the lead would connect. Found out that the Debug connections are under a sticky tab in the side of the battery compartment. With the device upside down and battery compartment to the top and battery cover removed, the sticky cover is right of centre near you. Removing the sticky plate will reveal a hole of 8mm by 4mm that is approximately 11mm to 12mm deep. The connections are 8 flat gold pads at the bottom. I shall be looking for a suitable connector for this (even if I have to make one).
>> Paul E. Bennett
>> (via Google Groups)
> More piccies of the same sort of serial port hack:
I haven't had a chance to view your link at parallax.com
I should have some 2mm surface mount connectors, but they may need some trimming to fit the pads. I can send you a couple if you want. I won't have my wikireaders until next week. I ordered two.
My main concern is how fast a Forth can run the serial port.
> My main concern is how fast a Forth can run the serial port.
> Rick
Has anyone gotten their units yet and used the serial port? I won't have mine until next week.
I am looking to buy a USB to TTL adapter from eBay and it seems to be hard to find one with much info on the pins. Most units use a PL2303 chip. Anyone know if that will interface ok to the Wikireader? Are the Wikireader pins 3.3 volts?
rickman wrote:
> On 10/13/2012 12:37 AM, rickman wrote:
>> My main concern is how fast a Forth can run the serial port.
>> Rick
> Has anyone gotten their units yet and used the serial port? I won't
> have mine until next week.
> I am looking to buy a USB to TTL adapter from eBay and it seems to be
> hard to find one with much info on the pins. Most units use a PL2303
> chip. Anyone know if that will interface ok to the Wikireader? Are the
> Wikireader pins 3.3 volts?
> Rick
Mine arrived last Thursday and I already have a schematic being sketched up to provide a reasonable driver for the Debug port, along with a couple of switches (prog and reset).I have contacted a firm who do spring loaded pins and I am going to build a location block that I will mount on the PCB of the jig on which the driver circuit is located. Yes, all the Wikireader pins are 3.3V (apart from the Bat+ and Bat-)
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
>>> My main concern is how fast a Forth can run the serial port.
>>> Rick
>> Has anyone gotten their units yet and used the serial port? I won't
>> have mine until next week.
>> I am looking to buy a USB to TTL adapter from eBay and it seems to be
>> hard to find one with much info on the pins. Most units use a PL2303
>> chip. Anyone know if that will interface ok to the Wikireader? Are the
>> Wikireader pins 3.3 volts?
>> Rick
> Mine arrived last Thursday and I already have a schematic being sketched up
> to provide a reasonable driver for the Debug port, along with a couple of
> switches (prog and reset).I have contacted a firm who do spring loaded pins
> and I am going to build a location block that I will mount on the PCB of the
> jig on which the driver circuit is located. Yes, all the Wikireader pins are
> 3.3V (apart from the Bat+ and Bat-)
I understand the processor is an Epson device. What debugger is used with it? Or is this just to reprogram the flash? I have the impression that there is not much need to program the serial flash since nearly all the data and much code are on the SD card.
How are you going to use the debug port? How are you going to use the WikiReader?
The spring loaded contact pads are typically used in manufacturing where you want to save the cost of the connector. Is the spring loaded cable expensive? Why not solder a standard connector?
rickman wrote:
> On 10/17/2012 1:36 PM, Paul E. Bennett wrote:
>> rickman wrote:
>>> On 10/13/2012 12:37 AM, rickman wrote:
>>>> My main concern is how fast a Forth can run the serial port.
>>>> Rick
>>> Has anyone gotten their units yet and used the serial port? I won't
>>> have mine until next week.
>>> I am looking to buy a USB to TTL adapter from eBay and it seems to be
>>> hard to find one with much info on the pins. Most units use a PL2303
>>> chip. Anyone know if that will interface ok to the Wikireader? Are the
>>> Wikireader pins 3.3 volts?
>>> Rick
>> Mine arrived last Thursday and I already have a schematic being sketched
>> up to provide a reasonable driver for the Debug port, along with a couple
>> of switches (prog and reset).I have contacted a firm who do spring loaded
>> pins and I am going to build a location block that I will mount on the
>> PCB of the jig on which the driver circuit is located. Yes, all the
>> Wikireader pins are 3.3V (apart from the Bat+ and Bat-)
> I understand the processor is an Epson device. What debugger is used
> with it? Or is this just to reprogram the flash? I have the impression
> that there is not much need to program the serial flash since nearly all
> the data and much code are on the SD card.
Most of the data is on the SD card from what I have gleaned so far. The SD card seems to be quite well buried inside the device and thus you need to take it apart to get at it. Access to the debug port (from under the battery compartment lid) should give an easier in. I also have other plans for the Wikireader as a potential small terminal for other systems.
> How are you going to use the debug port? How are you going to use the
> WikiReader?
As a Wikireader (updated as required) and as a small terminal for embedded systems testing and debug.
> The spring loaded contact pads are typically used in manufacturing where
> you want to save the cost of the connector. Is the spring loaded cable
> expensive? Why not solder a standard connector?
The company I have been in touch with do them for bed-of-nails test jigs. I have a price from them and am organising the making of teh support block at the moment. I shall probably be adding the LTC1387 to get a decent RS232 signal for the onward comms connections. The RESET and PROG pins will also be connected to a switch and pushbutton as appropriate.
I am aiming at a worthwhile and useful tool out of this.
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
On 2012-10-18, Paul E. Bennett <Paul_E.Benn...@topmail.co.uk> wrote:
> Most of the data is on the SD card from what I have gleaned so far. The SD > card seems to be quite well buried inside the device and thus you need to > take it apart to get at it.
I got mine today. Bad batteries and o boot. Now I have new batteries and bigger card and downloading newest wikis.
The card comes out nicely when you first push it in and let the spring throw it out for you.
Hannu Vuolasaho wrote:
> On 2012-10-18, Paul E. Bennett <Paul_E.Benn...@topmail.co.uk> wrote:
>> Most of the data is on the SD card from what I have gleaned so far. The
>> SD card seems to be quite well buried inside the device and thus you need
>> to take it apart to get at it.
> I got mine today. Bad batteries and o boot. Now I have new batteries
> and bigger card and downloading newest wikis.
> The card comes out nicely when you first push it in and let the spring
> throw it out for you.
My Wikireader does not seem to have a visible access to the SD card slot. I haven't yet had the bottom cover off. Where is your SD card located?
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
>> On 10/17/2012 1:36 PM, Paul E. Bennett wrote:
>>> rickman wrote:
>>>> On 10/13/2012 12:37 AM, rickman wrote:
>>>>> My main concern is how fast a Forth can run the serial port.
>>>>> Rick
>>>> Has anyone gotten their units yet and used the serial port? I won't
>>>> have mine until next week.
>>>> I am looking to buy a USB to TTL adapter from eBay and it seems to be
>>>> hard to find one with much info on the pins. Most units use a PL2303
>>>> chip. Anyone know if that will interface ok to the Wikireader? Are the
>>>> Wikireader pins 3.3 volts?
>>>> Rick
>>> Mine arrived last Thursday and I already have a schematic being sketched
>>> up to provide a reasonable driver for the Debug port, along with a couple
>>> of switches (prog and reset).I have contacted a firm who do spring loaded
>>> pins and I am going to build a location block that I will mount on the
>>> PCB of the jig on which the driver circuit is located. Yes, all the
>>> Wikireader pins are 3.3V (apart from the Bat+ and Bat-)
>> I understand the processor is an Epson device. What debugger is used
>> with it? Or is this just to reprogram the flash? I have the impression
>> that there is not much need to program the serial flash since nearly all
>> the data and much code are on the SD card.
> Most of the data is on the SD card from what I have gleaned so far. The SD
> card seems to be quite well buried inside the device and thus you need to
> take it apart to get at it. Access to the debug port (from under the battery
> compartment lid) should give an easier in. I also have other plans for the
> Wikireader as a potential small terminal for other systems.
That is exactly how I plan to use it. But there must be some access to the card. I thought you only had to remove the batteries to reach it? Otherwise how could they sell you Wikipedia updates by SD card?
>> How are you going to use the debug port? How are you going to use the
>> WikiReader?
> As a Wikireader (updated as required) and as a small terminal for embedded
> systems testing and debug.
>> The spring loaded contact pads are typically used in manufacturing where
>> you want to save the cost of the connector. Is the spring loaded cable
>> expensive? Why not solder a standard connector?
> The company I have been in touch with do them for bed-of-nails test jigs. I
> have a price from them and am organising the making of teh support block at
> the moment. I shall probably be adding the LTC1387 to get a decent RS232
> signal for the onward comms connections. The RESET and PROG pins will also
> be connected to a switch and pushbutton as appropriate.
> I am aiming at a worthwhile and useful tool out of this.
Ok. I will likely wire directly or through a jack as others have done. Some of my tasks don't need the level converter and can talk TTL levels. In fact, I had trouble with a USB converter once because the converter chip had a very slow slew rate on one edge which distorted the edge timing for fast data rates. I don't see that with TTL and my cable is rather short.
Still, I'd like to see what you end up with. I guess there is some advantage to not having to open the case, but are you sure you can update the SD card via the RS-232 port?
rickman wrote:
> Still, I'd like to see what you end up with. I guess there is some
> advantage to not having to open the case, but are you sure you can
> update the SD card via the RS-232 port?
I'll put details up somewhere when I get some of it more together. I'll probably make some arrangements for the TTL levels as well but I will need the RS232 at near proper levels for quite a lot of my systems. At least then I could add standard converters for RS485 if I need that aspect.
As for updating the SD card, I would hope a little coding could provide an easy way to do that across the serial interface. From what I can see of mine, the access to the SD card does not seem to be anywhere around the outside of the casing. The only holes under the battery cover that I could see are where the cover latch locates and the debug port (under a sticky patch). Might end up having to take the bottom plate off to have a look but the notes suggest that this is not as easy as it may seem because of the case construction tending to keep the halves firmly together.
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
> rickman wrote:
> > Still, I'd like to see what you end up with. I guess there is some
> > advantage to not having to open the case, but are you sure you can
> > update the SD card via the RS-232 port?
> I'll put details up somewhere when I get some of it more together. I'll
> probably make some arrangements for the TTL levels as well but I will need
> the RS232 at near proper levels for quite a lot of my systems. At least then
> I could add standard converters for RS485 if I need that aspect.
> As for updating the SD card, I would hope a little coding could provide an
> easy way to do that across the serial interface. From what I can see of
> mine, the access to the SD card does not seem to be anywhere around the
> outside of the casing. The only holes under the battery cover that I could
> see are where the cover latch locates and the debug port (under a sticky
> patch). Might end up having to take the bottom plate off to have a look but
> the notes suggest that this is not as easy as it may seem because of the
> case construction tending to keep the halves firmly together.
> --
> ********************************************************************
> Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
> Forth based HIDECS Consultancy
> Mob: +44 (0)7811-639972
> Tel: +44 (0)1235-510979
> Going Forth Safely ..... EBA.www.electric-boat-association.org.uk..
> ********************************************************************
Place the unit on the table, screen facing down.
Remove battery cover and remove batteries
Run your finger around the top of the battery compartment opening.
You should feel the edge of the SD card under your finger.
On Thursday, October 18, 2012 4:48:11 PM UTC-4, Mark Wills wrote:
> On Oct 18, 9:38 pm, "Paul E. Bennett" <Paul_E.Benn...@topmail.co.uk> wrote: > rickman wrote: > > Still, I'd like to see what you end up with. I guess there is some > > advantage to not having to open the case, but are you sure you can > > update the SD card via the RS-232 port? > > I'll put details up somewhere when I get some of it more together. I'll > probably make some arrangements for the TTL levels as well but I will need > the RS232 at near proper levels for quite a lot of my systems. At least then > I could add standard converters for RS485 if I need that aspect. > > As for updating the SD card, I would hope a little coding could provide an > easy way to do that across the serial interface. From what I can see of > mine, the access to the SD card does not seem to be anywhere around the > outside of the casing. The only holes under the battery cover that I could > see are where the cover latch locates and the debug port (under a sticky > patch). Might end up having to take the bottom plate off to have a look but > the notes suggest that this is not as easy as it may seem because of the > case construction tending to keep the halves firmly together. > > -- > ******************************************************************** > Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk> > Forth based HIDECS Consultancy > Mob: +44 (0)7811-639972 > Tel: +44 (0)1235-510979 > Going Forth Safely ..... EBA.www.electric-boat-association.org.uk.. > ******************************************************************** Place the unit on the table, screen facing down. Remove battery cover and remove batteries Run your finger around the top of the battery compartment opening. You should feel the edge of the SD card under your finger. Mark
On Thursday, October 18, 2012 7:37:34 PM UTC-4, visua...@rocketmail.com wrote:
> On Thursday, October 18, 2012 4:48:11 PM UTC-4, Mark Wills wrote: > On Oct 18, 9:38 pm, "Paul E. Bennett" <Paul_E.Benn...@topmail.co.uk> wrote: > rickman wrote: > > Still, I'd like to see what you end up with. I guess there is some > > advantage to not having to open the case, but are you sure you can > > update the SD card via the RS-232 port? > > I'll put details up somewhere when I get some of it more together. I'll > probably make some arrangements for the TTL levels as well but I will need > the RS232 at near proper levels for quite a lot of my systems. At least then > I could add standard converters for RS485 if I need that aspect. > > As for updating the SD card, I would hope a little coding could provide an > easy way to do that across the serial interface. From what I can see of > mine, the access to the SD card does not seem to be anywhere around the > outside of the casing. The only holes under the battery cover that I could > see are where the cover latch locates and the debug port (under a sticky > patch). Might end up having to take the bottom plate off to have a look but > the notes suggest that this is not as easy as it may seem because of the > case construction tending to keep the halves firmly together. > > -- > ******************************************************************** > Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk> > Forth based HIDECS Consultancy > Mob: +44 (0)7811-639972 > Tel: +44 (0)1235-510979 > Going Forth Safely ..... EBA.www.electric-boat-association.org.uk.. > ******************************************************************** Place the unit on the table, screen facing down. Remove battery cover and remove batteries Run your finger around the top of the battery compartment opening. You should feel the edge of the SD card under your finger. Mark Surprise, surprise! Information about the WikiReader is available at Wikipedia! http://en.wikipedia.org/wiki/Wikireader - including price, distributor, and links like http://thewikireader.com/#how-do-i-update-wikireaders-memory-card with pictures about updating the WikiReader’s memory card.
On 10/18/2012 7:50 PM, visualfo...@rocketmail.com wrote:
> On Thursday, October 18, 2012 7:37:34 PM UTC-4, visua...@rocketmail.com wrote:
>> On Thursday, October 18, 2012 4:48:11 PM UTC-4, Mark Wills wrote:> On Oct 18, 9:38 pm, "Paul E. Bennett"<Paul_E.Benn...@topmail.co.uk> wrote:> rickman wrote:> > Still, I'd like to see what you end up with. I guess there is some> > advantage to not having to open the case, but are you sure you can> > update the SD card via the RS-232 port?> > I'll put details up somewhere when I get some of it more together. I'll> probably make some arrangements for the TTL levels as well but I will need> the RS232 at near proper levels for quite a lot of my systems. At least then> I could add standard converters for RS485 if I need that aspect.> > As for updating the SD card, I would hope a little coding could provide an> easy way to do that across the serial interface. From what I can see of> mine, the access to the SD card does not seem to be anywhere around the> outside of the casing. The only holes under the battery cover that I could> see are where the cover latch locate
s and the debug port (under a sticky> patch). Might end up having to take the bottom plate off to have a look but> the notes suggest that this is not as easy as it may seem because of the> case construction tending to keep the halves firmly together.> > -- > ********************************************************************> Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk> > Forth based HIDECS Consultancy> Mob: +44 (0)7811-639972> Tel: +44 (0)1235-510979> Going Forth Safely ..... EBA.www.electric-boat-association.org.uk..> ******************************************************************** Place the unit on the table, screen facing down. Remove battery cover and remove batteries Run your finger around the top of the battery compartment opening. You should feel the edge of the SD card under your finger. Mark Surprise, surprise! Information about the WikiReader is available at Wikipedia! http://en.wikipedia.org/wiki/Wikireader - including price, dist
ributor, and links like http://thewikireader.com/#how-do-i-update-wikireaders-memory-card with pictures about updating the WikiReader’s memory card.
Yes, they give you the pin out of the pads which you can solder a connector to, but they don't show the pads in the context of the unit so you don't know the orientation. Given that two pins are labeled Bat+ and Bat- you might be able to ohm them to the battery terminals to get it right the first time.
>> On 2012-10-18, Paul E. Bennett <Paul_E.Benn...@topmail.co.uk> wrote:
>>> Most of the data is on the SD card from what I have gleaned so far. The
>>> SD card seems to be quite well buried inside the device and thus you need
>>> to take it apart to get at it.
>> I got mine today. Bad batteries and o boot. Now I have new batteries
>> and bigger card and downloading newest wikis.
>> The card comes out nicely when you first push it in and let the spring
>> throw it out for you.
> My Wikireader does not seem to have a visible access to the SD card slot. I > haven't yet had the bottom cover off. Where is your SD card located?
Thanks for the hint on the SD card location. In a recess I took to be just the view of the battery holder on the PCB. Don't recall a mention in the manual that came with it but then I just skimmed that quickly.
> Yes, they give you the pin out of the pads which you can solder a
> connector to, but they don't show the pads in the context of the unit so
> you don't know the orientation. Given that two pins are labeled Bat+
> and Bat- you might be able to ohm them to the battery terminals to get
> it right the first time.
There are some photos of the PCB which show the silk screen. So I think I have it from that. I will do a meter check before I lay out the connections though.
-- ********************************************************************
Paul E. Bennett...............<email://Paul_E.Benn...@topmail.co.uk>
Forth based HIDECS Consultancy
Mob: +44 (0)7811-639972
Tel: +44 (0)1235-510979
Going Forth Safely ..... EBA. www.electric-boat-association.org.uk..
********************************************************************
> Thanks for the hint on the SD card location. In a recess I took to be just
> the view of the battery holder on the PCB. Don't recall a mention in the
> manual that came with it but then I just skimmed that quickly.
>> Yes, they give you the pin out of the pads which you can solder a
>> connector to, but they don't show the pads in the context of the unit so
>> you don't know the orientation. Given that two pins are labeled Bat+
>> and Bat- you might be able to ohm them to the battery terminals to get
>> it right the first time.
> There are some photos of the PCB which show the silk screen. So I think I
> have it from that. I will do a meter check before I lay out the connections
> though.
I thought I remembered seeing some detailed photos of the PCB, but I can't find them now. Where did you find them? We need to start accumulating this information someplace central perhaps.
