have one I hope simple question:
In the Arduino MKR1000 Datasheet there is the following description for the 5V Output:
"This pin outputs 5V from the the board when powered from the USB connector or from the VIN pin of the board. It is unregulated and the voltage is taken directly from the inputs. When powered from battery it supplies around 3.7 V. As an OUTPUT, it should not be used as an input pin to power the board."
However when I disconnect the USB and the Arduino is switching to battery mode, there is no Voltage at the 5V output. Is the description wrong for the MKR1000? No 3.7V
I just experienced this also...and since no one answered I'll offer an interpretation of the voltmeter and schematics.
First, the meter confirms no output on the 5V pin while under battery power. Second, the schematic shows +5V directly connected to DL1 Green LED which the manual states does not function while on battery. Third, the only sources +5 seems connected to are VUSB and VIN. There's no path for current to pass from the battery side to the +5 except via Q3A which is a battery-off switch when +5 is present.
So, I draw the conclusion +5V is inactive while the battery powers the MKR1000. Arguments welcome but hope this saves someone a few min of looking around.
Rob
The 5V pin can NOT be used as a power source when the MKRNB1500 is powered through the VIN pin.
This statement is incorrect:
"5V: This pin outputs 5V from the board when powered from the USB connector or from the VIN pin of the board. It is unregulated and the voltage is taken directly from the inputs. When powered from battery it supplies around 3.7 V."
The reality is:
The 5V pin is directly connected to the USB connector pin 1. When nothing is connected to the USB connector, there is no power on the 5V pin. The 5V pin is ONLY active when you power the MKRNB1500 from the on-board USB connector.
