Sunday, December 28, 2014
fbtft_device rotate=270 name=itdb28 gpios=reset:15,dc:3,wr:2,cs:7,db00:17,db01:18,db02:27,db03:22,db04:23,db05:24,db06:25,db07:4
Saturday, December 27, 2014
If you run raspistill each time you want to take a shot, it does not work fast enough. In order to get instant shots it is much more useful to use the "signal mode".
In signal mode, raspistill waits for a SIGUSR1 signal from another process. You can invoke it like this:
raspistill -t 0 -s -o /tmp/shot.jpg
-s signal mode
-o output file
-t 0 disable default 5s timeout
and then when ready, send the signal to take a shot:
pkill -SIGUSR1 raspistill
pkill -10 raspistill
* If you don't specify -t 0 parameter and disable default 5s timeout, raspistill will quit after 2 or 3 shots (actually will quit after spending total 5 seconds).