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Re: Modify Original Nanovna for easy DFU mode like the H4 #dfu #mods


 

On Wed, Jan 22, 2020 at 03:03 PM, Larry Rothman wrote:
- Change R5 to 1K ohm (same as H4)
One remark regarding the -H versions:
If you look at Hugen's schematics, you will see that R5 has the same value of 1 kOhm as for the -H4 version. Therefore Larry's modification can be simplified. No need to change R5, just add one wire from P1/BOOT0 to the centre pin of the jog switch and you are on the very safe side regarding the HI potential.

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