On Fri, Sep 2, 2016 at 3:33 PM, Joseph Honold mozzwald@gmail.com wrote:
A handheld QWERTY device has been my goal for EOMA68 since I found out about it.
cool.
well, do add the research that you've done to http://rhombus-tech.net/community_ideas/clamshell_microlaptop/
that's what the wiki is there for. at the same time can you please add mention of the SEW291 3G module, and that it's $12 in low volume, and that it uses an MSM6260 chipset.
also, whilst initially it looks really great to add a $1 TI TCA8418 or other I2C chip, you soon find that you need another $1 chip, then another $1 ADC/DAC chip, then another $1 chip, and pretty soon it's like "hang on a minute this is f*****g stupid, that's $5 worth of ICs to do the same job as a $1.50 STM32F072!"
also bear in mind that from experience with the HTC Universal reverse-engineering doing clamshell phone / pdas is f****** complicated. beyond *any* shadow of doubt they are by far and above way more complex in terms of I/O than laptops, or even intel desktop PCs.
l.