Alarm Tilt Sensor. Day Night Security Cameras
Alarm Tilt Sensor
- A tilt sensor can measure the ing in often two axes of a reference plane in two axes. In contrast, a full motion would use at least three axes and often additional sensors.
One way to measure tilt angle with reference to the earths ground plane, is to use an Accelerometer.
tilt sensor
- A warning of danger
- dismay: fill with apprehension or alarm; cause to be unpleasantly surprised; “I was horrified at the thought of being late for my interview”; “The news of the executions horrified us”
- fear resulting from the awareness of danger
- An anxious awareness of danger
- A warning sound or device
- a device that signals the occurrence of some undesirable event
alarm
Tilt sensor orientation
Trying to reverse engineer how toy sword circuits detect a swing motion and do not trigger for a tilt motion, using only two cheap tilt switches installed perpendicular to each other. Am going to place some tilt sensors on a board in various orientations, wire them to LEDs, and swing the board while watching the blinking LEDs for a pattern.
Before I do this experiment, my hypothesis follows: Software loop detects state change on tilt_sensor1 and starts a timer. Timer will count down to zero then stop, setting a flag. If tilt_sensor1 state changes again, the timer is restarted.
If software loop detects a state change on tilt_sensor2 AND the timer flag is cleared (timer is running), then swing is detected.
Timer length will be adjusted for sensitivity.
For the sake of my tilted videography needs.
Panasonic GH2, Lensbaby Tilt Transformer, full metal Carl Zeiss Planar T* 1,4/50 ZF lens for the Nikon F-mount. With the Lensbaby it gives me a 100mm f/1.4 with 12° free angle tilt focus plane. For 1080p footage in the already famous 1:1 crop mode of the GH2 the lens will be a 260mm f/1.4 beast, not to mention at 720p the lens extends into a 390mm f/1.4. More pictures later.
