Unpopulated component J2 next to Qwiic connector?

watterott / CO2-Ampel

CO2-Ampel / CO2-Traffic-Light to measure and show the carbon dioxide concentration in a room, based on Sensirion SCD30/SCD4x sensor and Microchip SAMD21 microcontroller

https://learn.watterott.com/breakouts/co2-ampel/

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Unpopulated component J2 next to Qwiic connector? #2

Closed reibuehl closed 3 years ago

reibuehl commented 3 years ago

I noticed that there is an unpopulated component, J2, next to the Qwiic connector J4 on the v1.1 board. Is there any information about what was supposed to be there?

awatterott commented 3 years ago

Its a SWD connector for programming/debugging: https://github.com/watterott/CO2-Ampel/blob/master/hardware/CO2-Ampel_v11.pdf Please use our support mail address for technical questions.