Zipit Z2: Difference between revisions

Revision as of 15:17, 30 January 2016

Zipit Wireless Messenger Z2

Participants	Anus, User:buzz
Skills	We'll see
Status	Planning
Niche
Purpose
Tool	No
Location
Cost
Tool category

Zipit Wireless Messenger Z2

zipit-bestickert.jpg {{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost::{{{Cost}}} | }}

Specs

PXA270 @ ~100-450Mhz
32MB RAM, 8MB Flash, MiniSD slot
2.8" 320x240 screen
802.11bg wifi, Audio (also input), USB host&otg (on weird connector)
Backlit keyboard <3

Mods

Battery

It turns out that a Nokia BP-4L LiPo battery fits perfectly. without any modifications to the case. Uncertain if thermistor matches specs, but it does seem to charge. As an added advantage, this battery is 1500mAh instead of stock 1250mAh.

Update to battery mod;

Mozzwald made this script ; http://mozzwald.com/zipit/openwrt/chrgstat which showed that the battery wasn't charging at all.

Measuring the thermistor leads from the Nokia battery showed me it had a 119k resistance at roomtemperature, way too high for the charge circuit. I now put just a 9.1K resistor between the thermistor lead and GND, and, its charging \o/

http://www.ti.com/lit/ds/symlink/bq24030.pdf documentation for the charging circuit.

Links

dump of stuff i need/want to save on http://space.nurdspace.nl/~buzz/zipit/

Pics

@@ Line 28: / Line 28: @@
 </gallery>
+Update to battery mod;
+Mozzwald made this script ; http://mozzwald.com/zipit/openwrt/chrgstat which showed that the battery wasn't charging at all.
+Measuring the thermistor leads from the Nokia battery showed me it had a 119k resistance at roomtemperature, way too high for the charge circuit. I now put just a 9.1K resistor between the thermistor lead and GND, and, its charging \o/
+* http://www.ti.com/lit/ds/symlink/bq24030.pdf documentation for the charging circuit.
 == Links ==