RN131 draws 50mA sleeping

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thomasw71
Posts: 2
Joined: Sat Jan 07, 2017 11:59 am

RN131 draws 50mA sleeping

Post by thomasw71 » Sat Jan 07, 2017 12:55 pm

Hi, when running the RN131 in sleep mode Im reading 50mA of current. Ive issolated my circuit from the possible cause.
Any ideas why its drawing so much.
Im not using boost, Im only using TX RX pins.

Thanks

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DanV
Posts: 333
Joined: Sat Apr 25, 2015 9:29 am

Re: RN131 draws 50mA sleeping

Post by DanV » Sun Jan 08, 2017 6:45 am

Data Sheet:
http://ww1.microchip.com/downloads/en/D ... -v3.2r.pdf
says:
PIN 22 DMA-TX Debug port (apply a 100 kΩ pull down if ultra-low sleep power is required) DEFAULT:High Z

thomasw71
Posts: 2
Joined: Sat Jan 07, 2017 11:59 am

Re: RN131 draws 50mA sleeping

Post by thomasw71 » Tue Jan 10, 2017 10:56 am

Hi, using a pull down did not work, still drawing 50mA.
When I force RESET on the module low, the power drops to around 3mA which is what I expected with the MPU running.

thanks

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