20cm Lipo Battery Strap Belt Reusable Cable Tie Wrap Light Sensitive Photoresistor LDR Small eCO2 is an estimation based

eCO2 is an estimation based on VOC levels-useful for CO2 approximation without a dedicated CO2 sensor

Magnetically unshielded

then flash your compiled firmware using STM32CubeProgrammer or your chosen IDE

use USB gadget mode via the micro-USB port for serial communication without any GPIO connections required

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