To convert the 12V to 3.3V we are using 330Ω and 560Ω as voltage divider circuit. It is important to place an ... This finishes the complete tutorial on making an Arduino Uno Power Supply Shield. If ...

The examples provided below refer to 3.3 Vdc devices where the power source considerations are more critical. However, the same principles apply to 5 Vdc devices. First, let’s assume a circuit design ...

1: Circuit diagram of automatic battery charger When AC mains power ... 1) through IC1 and the other for power supply to Arduino (Board1) through IC2. While charging the battery, its voltage is ...

Fig. 1: Circuit diagram of DC panel meter using Arduino Power supply voltage is sampled using the voltage divider network built around resistors R1 and R2. Current consumed by the load is sampled ...

Power supply to Arduino board can given either from USB port or from 5v charger socket. For the LED display power is fed from 5v pin on the Arduino board. Different voltages mentioned in schematic are ...