Hi Robert! ... Do you have any datasheet for the "Sony-compatible Memory Stick's" ? Like this one: http://www.lexar.com/digfilm/memory_stick.html I didn't find...
Im looking to buy some, but not as many as the minimum quantity honeywell as. 2 would do me just fine actually. Any info on where to purchase those in canada...
Hi Shiriam, Digikey is the ticket! They have a website and catalogue in Canadian dollars (all brokerage/duty included) and they ship same day if your order is...
... Your magnetometer sounds a little like the one I am building. I am working on a magnetometer that copies Doug Welch's basic design, but with my own...
Hi David! ... Pretty cool! :-) ... 256kbyte ? Which chip would that be ? So far I only found 256kbit I2C RAMs. I will connect a 64MB MMC to my PIC board today....
... Ok, folks - here we go :-) I've successfully connected a 64MB MMC to my PIC board and tested the PIC and Linux software. Schematic and source codes are...
Bravo Hannes!!! I have been keeping my eyes open for a way to do this for a long time. I haven't had time to figure out the details for myself. Of course, I am...
... Thanks Jim! :-) But the "how-to" to connect the MMC and the C-functions for interfacing it come from this site: http://home.wtal.de/Mischka/ I've just made...
... Oops, you are right, the largest I2C chips are 256kbit or 64kbyte. So I could only store about 2 days of data in one chip. But I2C chips can be daisy...
... kb is bit. kB is byte. Note the case. This has been the convention for decades now. ... 256kb is only 32kB. I use 24C512's made by Microchip. Thats 64kB. ...
Hi Dave! ... Today I thought about EEPROMs and limited write cycles (typ. 10^6). 64MB = 131072 sectors @ 512byte/sector: In order to fill the 64MB MMC, one...
... You're right! I was a bit confused by 16bit data every 10secs and 15 days 8-) ... And with some I2C chips not even 8 but only 4 or less, because there is...
My FGM3 did some spectacular motions last night and this morning. This is the first one I'v ever monitored that amounted to anything. I'll publish a screen...
Hi John & all, I got the storm too on graph,love to see your graph & i will post mine to the group also, be nice to compare. I compared my results today with...
magnetometer@yahoogroups.com wrote: Message: 2 ... Most SEEPROM has page sizes of 32/64/128 bytes for 128/256/512 kbits *IF* you want to use page mode. ... ...
I added four magnetograms from the last four days to the photos section. The Sensor is an FGM3 located in magnetic East-West position, buried aprox. 1 ft....
Atmel makes 256k byte serial flash chips, which are under $3.00 in small quantities. They come in a 8 pin package. DigiKey part number AT45DB021B-SI-ND ...
Hi Robert! ... ..in other words: 64MB are 131072 times 512 bytes. Since one can only write to the MMC in 512 byte "sectors", one has to fill 512 bytes of a...
I added two more FGM3 readings to the photo section for November 9 and 10th, 2004 to complete the series. Things are pretty much calming down by the 10th....
Hi all! I just uploaded a page with an idea for interfacing a 32k/64k SRAM by using only 8 pins of a PIC: http://www.captain.at/electronics/pic-ram/ Note: It's...
... Hi John! Cool graphs! What is you average reading on a quiet day ? Around 400 ? Your mag uses a FGM3 sensor right ? How do you sample the signal ? I'm...
The Circuitry that comes with the FGM3 allows for a reset which centers the output voltage on about 1.2v. My DA converter is 0-4.0v scale. So the reading is ...
... Seems an OK design, if somewhat complex. (HC299 S/R for Data write/read, HC373 for address latches). It uses 88 pins and 4 devices and 8 PIC pins. I would...
shiram18@... would be my email ... rest current is higher in the 102x series and the 102x series is a little more senstive, 8.5 gamma resolution, (1 gamma...
Hi Robert! First of all, thanks a bunch for your comments! Very much appreciated! :-) ... The circuit is not meant as permanent storage, but rather as cache...
I am very gratefull for all information sent to me they are really helpfull to me in my work I corrently using HMC10XX series for the work. the signal...
... http://www.radiosky.com/ http://www.radiosky.com/skypipeishere.html Radio Sky Pipe runs on a PC, and uses a sound card or other A/D for input. Jim Sky also...
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