How to power up Pulse Sensor using external battery?

Questions about Modern Device and JeeLabs Sensors
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internetizen
Posts: 4
Joined: Fri Sep 18, 2015 12:48 pm

How to power up Pulse Sensor using external battery?

Post by internetizen » Fri Feb 12, 2016 5:08 am

After uploading a sketch to my Arduino board using an USB cable to my laptop, I can see my Pulse Sensor board got powered up as the red LED got turned on.
However, once I disconnect my USB cable from my laptop and connect to an external portable battery, this module is off as the red LED doesn't light up.
Is there any setting I need to use with external battery for this module with PSO2 sketch?
Thanks

paul
Site Admin
Posts: 733
Joined: Mon May 12, 2008 4:19 pm

Re: How to power up Pulse Sensor using external battery?

Post by paul » Fri Dec 02, 2016 6:56 pm

nternetizen,

The problem is the power up issue with the I2C lines. Push the reset line on your microcontroller and you should see the sensor power right up.

PB

Kallapser
Posts: 1
Joined: Sat May 06, 2017 1:00 pm

How to power up Pulse Sensor using external battery

Post by Kallapser » Thu May 18, 2017 12:50 am

Can you give me a example of a code i would use to get it to stop on red?

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