I have a working RAK5010 with an external sensor which is doing everything we need it to do except that when the client runs the battery out, the device will no longer charge or turn on when power is applied. If I disconnect my sensor, then apply power, the RAK5010 will turn on so it appears that my sensor is draining power and there isn’t enough to boot.
I have a SGP30 device that is wired as:
J9 Pin 1 (1.8V J-Link ref) → VREF J12 Pin 1 is also the 1.8V for my device.
J9 Pin 4 GND ----> SPG30 Ground
J12 PIN 3 and 4 as the SDA/SCL pins
I’m able to connect to my device, read data, etc. When battery drops and the power turns off, the client is not able to turn device on just by plugging the power cable back in.
Other devices that I have that do not have the external sensor will power back on if the device runs out of power.
So, I’m trying to figure out a better way to connect my SGP30 device and tried to make NRF_I02 an output and set it to LOW so it could be a ground for my device. That didn’t work.
I’d like to keep this simple and user friendly as they do not have access to the power button.
For reference, this the device I’m trying to connect:
Again, it works fine until power forces the device to shut off then I’m not able to turn it back on w/ just applying power unless the SGP30 device is unplugged.