I have a proyect using an Arduino mega rev3, with an ultrasonic sensor and a RGB LED to indicate the distance(calculated with the sensor), it is powered with a verbatin Powerbank, which is conected to the ground and to a resistor in the PCB, to drain the energy, which is the same as conecting to the…

Hi, narri: I have a proyect using an Arduino mega rev3, with an ultrasonic sensor and a RGB LED to indicate the distance(calculated with the sensor), it is powered with a verbatin Powerbank, which is conected to the ground and to a resistor in the PCB, to drain the energy, which is the same as co…

Hi Tom TomGeorge: Hi,Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png? If you are using a 5V USB powerbank, you can connect it directly to the USB socket on the mega. Thanks.. Tom.. :slight_smile: I put the PNG file as an attachment, as you c…

Hi, The bank is a Lipo type, it has protection circuitry fitted to disconnect the battery when it gets too low and to protect it when it is being charged. OPs image. [Capture.PNG] I would suggest you plug the bank in where it is supposed to be. Can you tell us your electronics, programming, Ar…

Hi, If you are supplying 5V to Vin, then you will not be getting regulated 5V on the Mega, as Vin is connected to the input of the on board 5V regulator. I do not see how the resistor you are connected to is providing the current needed to keep the bank switched ON. Tom... :slight_smile:

If you are supplying 5V to Vin, then you will not be getting regulated 5V on the Mega, as Vin is connected to the input of the on board 5V regulator. .. and it would not work at all as the built-in regulator needs at least 7V as mimimum input voltage.

If the power bank switches itself off when it considers that there is insufficient load on it, then you can sometimes get away with drawing current sporadically to trick it into remaining on. I got the idea from an Web article somewhere and did some experiments and arrived at the solution of using …

rpt007: .. and it would not work at all as the built-in regulator needs at least 7V as mimimum input voltage. TomGeorge: Hi, If you are supplying 5V to Vin, then you will not be getting regulated 5V on the Mega, as Vin is connected to the input of the on board 5V regulator. I do not see how …

6v6gt: If the power bank switches itself off when it considers that there is insufficient load on it, then you can sometimes get away with drawing current sporadically to trick it into remaining on. I got the idea from an Web article somewhere and did some experiments and arrived at the solution …

Here is what I use to suppress the Auto Power Off "feature" of my powerbank. [PowerBankAutoShutoffSuppression.JPG]

Sorry but with that it is currently working -> by connecting it via Vin? Never - the regulator definitely needs at least 7V. This is what I was referring to and not, if you are connecting your power bank to the USB port itself. This will then bypass the onboard regulator and will be powered dire…

Powering the arduino nano with a Power bank

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6v6gt August 28, 2017, 2:55pm 10

Here is what I use to suppress the Auto Power Off "feature" of my powerbank.

HELP powering with powerbank

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Powering the arduino nano with a Power bank

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