New Propeller based Product
Praxis
Posts: 333
This is a product that we have recently designed for a customer using the propeller.
While I can't disclose what it is I can say that it has a 128 x 128 OLED colour display, GPS receiver and antenna, compass, real time clock and runs from two button batteries.
Cheers
While I can't disclose what it is I can say that it has a 128 x 128 OLED colour display, GPS receiver and antenna, compass, real time clock and runs from two button batteries.
Cheers
622 x 333 - 274K
Comments
Nice-looking boards! What problems did the unique characteristics of the Propeller allow you to solve in this app that would've been more difficult (or impossible) with another processor?
-Phil
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'Still some PropSTICK Kit bare PCBs left!
Good job.
But, how long can the Prop run on a pair of coin cells?
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Probably longer than you think. If it only updates the position once a minute and then goes into a sleep mode the power consumption should be really low and would probably be driven by the display. On the data sheet it looks like it should be fairly easy to get the current down to around 10uA when idle. Even if the batteries are only a few mili-amp hours that is still a lot of battery life.
In reply to the comments in order as posted;
To Phil Pilgrim: This design was orginaly going to use a HC08 cpu but I decided to use the propeller as we needed some 32 bit number crunching.
To Bergamot: This device is a special purpose compass.
To Rayman: We are thinking about producing a simplified version of the OLED display board sans RTC & buttons ala uOLED 128 for general purpose applications.
To jazzed: The bottom PCB (large one) measures 60mm x 34mm and yes it needs to be level for the compass function. FYI the compass chip is a Honeywell HMC6352, I was going to use the HM55B but this device is no longer made.
To stevenmess2004: Sorry no servo's, The batteries are 190mA Silver Oxide in series which provide power to 2 switching regulators, the GPS receiver is powered for calibration of location, time/date etc otherwise it is powered down. the prop is clocked at high speed only to display initial graphics after that only portions of the dsiplay are updated al a lower clock speed. The display blanks after 30 seconds and auto pwer off after 2 minutes. The device powered off current is 1uA.
Other notes: the GPS receiver is only 13mm x 15mm in size and is based upon an Antaris 4 chip set with a sleep current of 130uA.
I posted this in the interest of giving an example of a high volume product bassed on the propeller chip.
Cheers
Azlan David
Praxis Group
www.praxis.com.my
Post Edited (Praxis) : 7/5/2008 4:27:46 AM GMT
For some reason the sample chips I bought the beanie was hardley visible.
Anyway if I recall Paul Bouchard (Parallax) has kindly offered to provide a sanding service[noparse]:)[/noparse]
Cheers
I am searching for a GPS receiver similar to that size. I think I just saw a product in a Circuit Cellar, but I don't have it handy to reference the name.
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Timothy D. Swieter
www.brilldea.com·- uOLED-IOC, RGB LEDs, TLC5940 driver PCB
www.tdswieter.com
One little spark of imagination is all it takes for an idea to explode
Volume = 200K, 500K, 1KK.
The GPS receiver info can be found here:
For Antaris Chip Set
http://www.locosystech.com/product.php?zln=en&id=2
For SIRF III in same form factor
http://www.locosystech.com/product.php?zln=en&id=1
Regards
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www.fd.com.my
www.mercedes.com.my
We used spin and assembler, which should be called SPASM.
Azlan
Post Edited (Praxis) : 7/8/2008 7:35:54 AM GMT
Um, aren't you a lion?
·
Actual the name you have in mind is Aslan which is Turkish for lion, the name Azlan is derived from the same.
Cheers
You must be a genius.
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www.fd.com.my
www.mercedes.com.my
No lah, saya tak pandai, programming spin syiok.
Cheers
Post Edited (Praxis) : 7/8/2008 5:54:47 AM GMT
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Timothy D. Swieter
www.brilldea.com·- uOLED-IOC, RGB LEDs, TLC5940 driver PCB
www.tdswieter.com
One little spark of imagination is all it takes for an idea to explode
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Timothy D. Swieter
www.brilldea.com·- uOLED-IOC, RGB LEDs, TLC5940 driver PCB
www.tdswieter.com
One little spark of imagination is all it takes for an idea to explode
Yes that is the GPS antenna, here is a link for more info:
http://www.coxoc.com.tw/product/detail.asp?myid=396&title_name=
Cheers
I was looking at the device from Sparkfun, and it has SPI and parallel interfaces.
Do you have an enclosure already? Is it custom?
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The interface we are using is 8 bit parallel although this can be up to 17 bits, depends on the colour depth you require.
The display is from Univision in Taiwan part no. UG-2828GDEDF01
This is a 128x128 display, I source them from Glyn in Australia (www.glyn.com.au) who also happen to be distributers for 4DSystems.
The single unit price is about AUD$29, I don't know how that compares with the unit from Sparkfun.
Densitron in the UK also have a similar device albeit with a different driver chip and interface.
Our customer is producing their own enclosures for this product.
Regards