The Android app sends a single character to the control board to either select a component feeder, turn the picker needle or perform a reset of the system. When a reset command is received or upon start up the Y axis retracts up until an IR break beam sensor is broken which then sets ...
Closeup of the laser and photoresistor in a goal slot. You might be familiar with a break beam sensor if you’ve watched movies like Mission Impossible, where a burglar has to sneak past an array of lasers without breaking any of the beams and setting off the alarm. The way it works ...
We used a TCRT5000 IR reflective sensor with a reflective object for 'Homing' to define the start point of one rotation if jolliPOV Stick is to be mounted onto a motor to act as a rotating display stick and an SW-200D ball tilt switch for 'Homing' if it is to be handheld and wav...
To create the IR break-beam, we will used an IR LED with a low value resistor so that it shines very bright. The receiver will be a phototransistor which biases 'on' whenever the IR LED's light is detected. A computer fan will be placed between the IR link and turned on so as to...
In order to function properly the servo motor needs a sensor that can accurately measure its shaft position. On some industrial and high-end hobby servos this is done using an optical interrupter disc, but in most standard hobby servo motors the sensor is a potentiometer. This works well as...