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29.08.2020 - PLA Case & pcb

A project log for PAQM - Portable Air Quality Meter

PAQM is a portable device to mesure the air quality. Breathe the fresh air !

nj1337nj1337 08/29/2020 at 00:420 Comments

Here are somes all of the electronics components : 

This is the power management with a DCDC booster from 3.7V to 5V, the 1200 li-ion battery and the TP4056 for chargement the battery. note that there is a battery monitoring system directly on the ESP32 from the TP4056 OUT terminal.

This is the ventilation system, with a 5V fan (lowered to 4V for a slow speed). and his control PCB.

This is the main board with the ESP32 DevkitC. There is a led for power indication.

This is the other face of the main board. Note that i have engraved it with my CNC and flatcam. there a protection varnish.

Here are the sensors and the Oled control screen.

Thank you. Leave a comment =)

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