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+#Simple timelapse/intervalometer app for Flipper Zero, works via GPIO pins.
+
+![zeitraffer for flipper zero](https://theageoflove.ru/uploads/2022/11/photo_2022-11-10_15-54-25.jpg)
+
+## Control:
+ - Up and down - time. 
+ - Left and right - number of frames 
+ - Long press arrows - ±10 frames/seconds 
+ - OK - start/pause 
+ - Long press OK - turn on/off the backlight 
+ - Back - reset 
+ - Long press back - exit
+
+1 frame - simple timer, 0 frames - infinite mode, -1 frames - BULB mode
+
+When the timer is running, all buttons are blocked except OK.
+
+## What you need:
+  - two EL817C optocouplers
+  - pin header connector 1x3 2,54mm male
+  - some wire
+  - heat shrink
+  - camera remote connector
+## How to assemble
+Take optocouplers, connect according to the scheme.
+![](https://theageoflove.ru/uploads/2022/11/camera_cable_en.jpg)
+Camera pinout can be found here: https://www.doc-diy.net/photo/remote_pinout/