On 7/13/20 5:41 PM, Kurt McCullum wrote:
Looks great. Might be worth adding one more hole that goes to the BCR
data in pin for those interested in using it for input.
I ended up making a separate breakout board for hacking/experimenting
Breakout: https://oshpark.com/shared_projects/MTOWfRkz
And I've been massaging the usb and wimodem adapters, and the way
oshpark works, you have to keep creating new links for each revision, so
the current versions of those are:
USB: https://oshpark.com/shared_projects/mTFeysVg
Vertical USB: https://oshpark.com/shared_projects/OHdw5nqN
WiModem232: https://oshpark.com/shared_projects/AXNfGK0n
I just received an earlier version of the WiModem and usb adapters today
and tested them and they both work.
The BCR port successfully powers the WiModem, but unfortunately the low
battery light flickers rapidly after a few minutes with fresh nimh
batterlies, after about an hour with fresh alkalines. Machine still runs
for at least a couple hours after that. I don't know how long before it
actually dies, just that the battery light flickers rapidly and
constantly, and I've had it on for 2 or 3 hours so far.
I'm measuring about 4.85v out while loaded with the WiModem, and drawing
about 80ma. 75ma when I issue the AT command to turn the led off.
I think it was silly to get the OLED version of this thing. You can get
all the information you need to operate the modem right in the terminal.
I think those modules draw about 10-15ma. So between losing the OLED
module and turning off the led, that could bring it down to as low as 60ma.
https://photos.app.goo.gl/hjoC3vnfZxWbFPRW6
--
bkw
