A WEB CONTROLLER FOR THE
NEEWER DL SERIES
I was disappointed with Neewer's app support for the DL200 camera dolly, so I reverse engineered the Bluetooth communication and made a quick webapp to control it, along with some extra features.
Connection
connect disconnect emergency stop
The speed will rapidly change from 5 to 1 to show connection is successful.
Main Movements
go left go right stop momentary
Arrow keys or numpad to move, space to stop
Speed and Acceleration Settings
speed 1
speed 2
speed 3
speed 4
speed 5
slow acceleration
constant acceleration
Special Functions
Ping Pong
Move the dolly back and forth. 'End sequence' gracefully finishes the remaining movement. A 'Stop' command will end the movement early.
left then right repeatedly right then left repeatedly end sequence
[Travel for ms] [Stop for ms]
Super slowmode
Uses the slow acceleration setting and a repeated on/off with delay to achieve a very slow movement.
super slow left super slow right stop superslow
[Delay factor ms]
Comma to go left, period to go right, space to stop.
Fixed duration movements
Timed movements, also suitable for micromovements. The smallest movement is not terribly accurate and occasionally the little dude will just keep on going, so caution. The minimum is roughly equal to 0.4mm.
fixed duration left fixed duration right [ In motion for ms ]
Minus and plus keys trigger fixed duration movements.
Tests
Attempt to move the device for one second in effort to compare the distance travelled at speed 1 vs super slow speed.