10. Output Devices: Angel, Elle, Zaina¶
Group Assignment¶
- Measure the power consumption of an output device.
- Document your work on the group work page and reflect on your individual page what you learned.
OLED Display Power Consumption¶
To claculate the power consumption of an OLED Display, we used a multimeter to find the circuit’s voltage and current.
Since the OLED Display is powered by 5V in microcontroller, the only thing we need to find is the voltage when OLED display is getting power.
Then we measured the amps of the display. Since the OLED diaply is connected to the touch sensor, I need to hold the touch sensor so that the display is always on. We placed the negative pen of the multimeter on the GND pin of the display and the positive pen on the VCC pin of the display.
The voltage fluctuates but it is around 0.256 amplitude.
Then we use the equation P = V x A where P is the power consumption, Vis the voltage and A is the current (amps). Thus, P = 5V x 0.256A gives a total power consumption of 1.28 W.