Hey Guys,
Look here to see an interesting snippet about a wireless ECG monitoring system provided by Analog Devices.
http://www.analog.com/en/rfif-components/rfif-transceivers/adf7021/products/technical-articles/ICs_for_Low_Power_Low_Cost_ECG_Holter_Monitors_Sup/resources/fca.html
This is a single lead system ... something definitely worth looking at twice.
Tuesday, November 11, 2008
Thursday, October 2, 2008
Meeting notes for Wednesday, Oct. 1st, 08
Guys,
Per our discussion this week, we were able to outline the following points:
Me: to provide Len with part numbers for 2 different Gumstix configurations, 1 with Audiostix and 1 with the LCD driver. They are to communicate via USB or Bluetooth. I will provide the part #s for the board with built in bluetooth, more RAM and flash ROM as originally layed out in the proposal.
The following will be proposed:
1 Verdex Pro XM4-BT motherboard + audiostix2 ($159 + 40)
1 Verdex Pro XM4-BT motherboard + consoleLCD16vx ($159 + 49)
1 Samsung LCD ($85)
I will work on getting a copy of the SDK for Linux OpenEmbedded running. I will grab a recent CVS copy of the codebase, compile it and become accustomed to doing custom kernels with modules. I will also look into Qtopia Core and see how easily that can be compiled for OpenEmbedded and built on top of the Linux OE. I will also look into Graph plot and plotting widgets for Qtopia.
Ashish: Check up on chest strap left behind by Jenna and see what kind of condition it is in. Try go get some sample data captures from it. Check the coil and take some measurements. Perhaps look at winding a new coil with help from Len and Nagui for the magwire.
Octav: Is to work closely with Ashish on the chest strap and coil measurements so as to get a good idea how to pickup the signals and help with signal conditioning before transmission.
Len: send us the links to the Israeli company that makes the heartbeat monitor chips.
Per our discussion this week, we were able to outline the following points:
Me: to provide Len with part numbers for 2 different Gumstix configurations, 1 with Audiostix and 1 with the LCD driver. They are to communicate via USB or Bluetooth. I will provide the part #s for the board with built in bluetooth, more RAM and flash ROM as originally layed out in the proposal.
The following will be proposed:
1 Verdex Pro XM4-BT motherboard + audiostix2 ($159 + 40)
1 Verdex Pro XM4-BT motherboard + consoleLCD16vx ($159 + 49)
1 Samsung LCD ($85)
I will work on getting a copy of the SDK for Linux OpenEmbedded running. I will grab a recent CVS copy of the codebase, compile it and become accustomed to doing custom kernels with modules. I will also look into Qtopia Core and see how easily that can be compiled for OpenEmbedded and built on top of the Linux OE. I will also look into Graph plot and plotting widgets for Qtopia.
Ashish: Check up on chest strap left behind by Jenna and see what kind of condition it is in. Try go get some sample data captures from it. Check the coil and take some measurements. Perhaps look at winding a new coil with help from Len and Nagui for the magwire.
Octav: Is to work closely with Ashish on the chest strap and coil measurements so as to get a good idea how to pickup the signals and help with signal conditioning before transmission.
Len: send us the links to the Israeli company that makes the heartbeat monitor chips.
Wednesday, October 1, 2008
Chipset, Video Interface on Audiostix
Guys,
It seems that the Audiostix board incorporates LCD connection technology which is detailed here in the specs for the Philips UCB1400. The Philips UCB1400 is the core driver on the Audiostix board which is the audio codec, A/D functionality built in, and a 4-pin resistive touch screen driver. I looked at the specs file but much of it went over my head.
I will bring a few pages of the specs with me for us to look at. Perhaps Len can help us decipher it a bit.
It seems that the Audiostix board incorporates LCD connection technology which is detailed here in the specs for the Philips UCB1400. The Philips UCB1400 is the core driver on the Audiostix board which is the audio codec, A/D functionality built in, and a 4-pin resistive touch screen driver. I looked at the specs file but much of it went over my head.
I will bring a few pages of the specs with me for us to look at. Perhaps Len can help us decipher it a bit.
Wednesday, September 24, 2008
Gumstix Power Consumption
It would seem as per this specs page that the Gumstix utilizes 1.5Watts of power with Wifi inactive and 2.0Watts with Wifi active. That is referring to the XM4-BT board which has built in Bluetooth. I will be changing the part #s in the specs now since our discussion.
As far as the daughter boards with audiostix and the video display boards, they are both 60-pin expansion boards so I'm not sure how we're going to work this out. Perhaps Len can offer some feedback on this. The assortment of expansion boards can be viewed here.
The audiostix does have an LCD interface according to the specs here but it seems that some soldering is required to make this work. I don't know what that means but I would say its safe to exclude the audiostix board if we want a nice display interface.
As far as the daughter boards with audiostix and the video display boards, they are both 60-pin expansion boards so I'm not sure how we're going to work this out. Perhaps Len can offer some feedback on this. The assortment of expansion boards can be viewed here.
The audiostix does have an LCD interface according to the specs here but it seems that some soldering is required to make this work. I don't know what that means but I would say its safe to exclude the audiostix board if we want a nice display interface.
Visio Block Diagram
Hey guys, the visio block diagram is ready. I've emailed it to everyone as an attachment.
Friday, September 19, 2008
Gumstix Update
I will look into more on Qtopia and the multimedia capabilities and see if there is an MP3 decoder that can interface with it.
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