Chip-cn-dat/SIMCOM/SIMCOM-low-power-Dat/SIMCOM-PSM-Dat/SIMCOM-PSM-Dat.md
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@@ -29,8 +29,8 @@ Test based on our current SIM7020E module
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## Demo video
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- https://www.youtube.com/shorts/S57VZSJNvnw
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+- Notice in some of our modules, the pull-up resistors are costly to power, which has to be removed for best low power performance.
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+- Double check if your net work support PSM mode, or EDRX mode, we don't have it here (cn), so can not test
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## PSM AT commands demo
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