Both. In electrical terms energy is the product of Voltage (in Volts) times current (in Amperes) times Time or 1V * 1A for 1 hour = 1 Wh (Watt hour). Which Arduino do you have?
Both. In electrical terms energy is the product of Voltage (in Volts) times current (in Amperes) times Time or 1V * 1A for 1 hour = 1 Wh (Watt hour). Which Arduino do you have?