Feature #3566: build charger for gsm-r toys - Misc Hardware Projects - Open Source Mobile Communications

Feature #3566

build charger for gsm-r toys

Added by roh over 2 years ago. Updated about 1 year ago.

Status:

Stalled

Priority:

Low

Assignee:

laforge

Target version:

Start date:

09/18/2018

Due date:

% Done:

50%

Spec Reference:

Description

figure out a pinout/spec for these 2 kinds of devices:

sagem NNG OPS 940
- pogopins from device to battery
- ericcson style flat connector row on bottom end
- 3.6V 2.3Ah li-ion battery

timba tec pocket pc
- 5V DC 2.4A label
- 3.7V 4Ah li-ion battery

P9180011.jpg	View P9180011.jpg	370 KB	roh, 09/18/2018 02:46 PM
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P9180003.jpg	View P9180003.jpg	461 KB	roh, 09/18/2018 02:46 PM

History

#1 Updated by roh over 2 years ago

timba:
5V (+ center - ring) 2.4A

#2 Updated by roh over 2 years ago

File P9180012.jpg P9180012.jpg added
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Status changed from New to In Progress
% Done changed from 0 to 50

i disassembled one ops 940nd which had some mechanical defects (2 of the screw-sockets are broken out)

from what i can tell http://pinouts.ru/CellularPhones-A-N/sagem_9xx_pinout.shtml this pinout comes close enough.

the pins are staggered in a up-down pattern on this device, and not in a linear row, but the numbers make sense. the one closest to the coax (1) is plus, the gnd os on pin6 or coax shield.

for daily fnord: this phone seems to be a completely different phone wrapped into 2 extra add-on boards (new keyboard/display pcb and backshell pcb to adapt different battery)