Hardware - neilstockbridge/debian-phone GitHub Wiki
cat /sys/class/power_supply/battery/level
echo 128 > /sys/class/leds/lcd-backlight/brightness
0 turns the backlight off and 255 is full brightness, although the perceived brightness is not linear between 0 and 255.
echo 255 > /sys/class/leds/button-backlight/brightness
255 is on and any other value is off for the u8120.
Play with this device by invoking: screen /dev/smd0 ( assuming that you have GNU screen installed).
| command | effect |
|---|---|
AT+CLAC |
list supported commands |
ATD<num>; |
begin voice call |
AT+CHUP |
hang up |
AT+CMGF=1 |
use TEXT mode |
AT+CNMI=2,1 |
request unsolicited notifications that look like +CMTI: "SM",6
|
AT+CMGL="ALL" |
list messages |
AT+CMGS="<num>" |
send message |
AT+CMGR=6 |
read message 6 |
AT+CPMS="SM" |
set preferred msg storage to SIM - not sure if required although I did it during testing |
AT+CMGD=4 |
delete message 4 |
AT+CSQ |
signal quality |
"send message" responds with "\r\n> ". You can write your message and then finish with ^Z.
"signal quality" says +CSQ: 5,99 where the first digit means -113+2*x dBm ( x <= 31) or 99 for unknown.