In these simple circuits, the LEDs need a voltage of approximately 1.5 V (a) or more than 5 V (b) to turn on. The circuits allow a battery-powered microcontroller to control two LEDs with only one I/O pin
| Authors | Antonio Muñoz, Arturo Mediano |
| Main Document | Article «One microcontroller pin drives two LEDs with low quiescent current» |
| Description | Figure 1 |
| File Format / Size | PDF / 10 Kb |
| Document Language | English |
