Category: Tilt Flasher

A simple Arduino microcontroller flasher can easily be turned into an Up-Down Sensor by adding a tilt control switch. As shown in Figure 8-3, the tilt control sensor is mounted on the MakerShield. When the tilt control switch is in the horizontal position, both the red and green LEDs will flash. Placing the MakerShield on its side will… Continue reading The Up-Down SensorThe Up-Down Sensor

As shown in Figure 8-1, the LED wiring is quite different from previous projects, because an electrical ground and a +5V battery are used to individually operate them. The idea behind this wiring technique is to allow one LED to be on at all times. The circuit schematic diagram in Figure 8-2 on the left shows LED1 on while LED2 is off.… Continue reading Circuit Theory

Figure 8-1. The Up-Down Sensor block diagram TECH NOTE A tilt control switch is sometimes called a tilt sensor.

Up-Down Sensor The FrankenBot toy illustrated the method of flashing two LEDs wired in parallel. The Arduino microcontroller made it easy to change the flash rate of two LEDs using a 10KΩ potentiometer. How cool would it be to control an LED’s flash rate by moving an electronic box in an up-down motion? This project is a… Continue reading Introduction