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VCC Voltage reading
5 años 4 meses antes #1631
por Ray
Respuesta de Ray sobre el tema VCC Voltage reading
The OLED screen is taking +5V from the pin of the Arduino MEGA (just left to the 2 ground pins) see the image below:
You should read +5V there, or at least close to 5V (I read 4.8V on mine).
How are you powering the board? maybe you can try to switch and use the USB power or the DC jack connector power (using a standard +12V wall adapter).
Here is the mega schematic, it may help you:
www.arduino.cc/en/uploads/Main/arduino-mega2560-schematic.pdf
You should read +5V there, or at least close to 5V (I read 4.8V on mine).
How are you powering the board? maybe you can try to switch and use the USB power or the DC jack connector power (using a standard +12V wall adapter).
Here is the mega schematic, it may help you:
www.arduino.cc/en/uploads/Main/arduino-mega2560-schematic.pdf
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