[Arm-netbook] flying squirrel conundrum

[jm]

On Sun, 2012-11-25 at 20:42 +0000, luke.leighton wrote:
> we have a bit of a conundrum over component pricing.   $7 or
> thereabouts is due to the use of EOMA-68 (casework etc). but even
> subtracting $7 from $113 we're still a whopping $26 (23%) off of
> equivalent devices with the same functionality.
> 
> the target's $80.  can anyone help source parts on this list that will
> help us to reach the target?
> 
> l.
> 
> 
> 
> 3200mAh battery    $6.00    EEMB    10000    

Charger costs missing????


This may be off the beaten track in terms of marketing,
but have you thought about using
rechargeable AAA, AA or 18650 batteries?

You can then sell the devices $6 cheaper without the battery
and let the customer install their own.
Lower cost to ship them as well.


> LD070WS2-SL05    $30.00            LCD (IPS 1024x600)
> STM32F103RC6    $2.20        10000    high-end version, excludes
> delivery (from HK across to Guangdong)
> Capactitive 5T    $11.00    NJY    10000    CTM with NO CONTROLLER
> 0.3MP Camera    $3.00        10000    
> 3-axis Accelerometer    $1.08    Digikey?    10000    Bosch BMA250
> PCB    $1.50            appx 3in x 6in
> EOMA68 CPU Card    $38.00            CPU Card (1ghz 1Gb RAM / 4Gb
> NAND)
> Speakers    $1.00            2x 0.5 watt
> Coil Mic    $0.20            not piezo: circuit's been designed around
> a coil microphone
> Case    $8.00            Good quality!
> PCMCIA socket    $0.50    Amphenol (Diarmuid)        68-pin socket
> Amphenol P/N G659EU1124703T
> SoC cartridge    $1.00    Amphenol (Diarmuid)        PCMCIA assembly
> (rails) with push-release mechanism
> AXP209    $1.00            Power Management IC
> MiniPCIe WIFI    $4.00            Ralink RT2070, RT8191  or Atheros
> ATH9K
> MicroSD    $0.32            
> SN75LVDS83b    $1.00    Texas Instruments        LVDS Display
> interface converter IC, from RGB/TTL to LVDS
> MiniPCIe CON    $0.62    Digikey?        JAE 52-pin Mini PCI-e
> connector for WIFI/3G/DVB
> Headphone Jack    $0.20            
> MiniUSB AB    $0.20            
> MiniUSB Host    $0.20            
> Sundry Discretes    $2.00            LDOs, DC-DCs, L,R,C, MOSFETs,
> Diodes etc.
> 
> Total: $113

You may have to give way on the higher quality LCD and
make two versions. One with 7" cheapo resistive screen.
The lower price grabs the headlines.
The buyers are split 2:1 favouring the bigger screen:
http://www.indiegogo.com/pengpod
But that still indicates 30% of the buyers
will spend money on cheaper smaller screens.

(If using AA NiMH batteries, it is possible to fast charge them
in 15 minutes. Need a fan though and more components.
Again a selling point for a bigger more expensive model
but still off the beaten track in terms of marketing.)


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