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Schematic

Layout

3D View

SL1
SL2
U1
Manufacturer Part Number
AP2112K-3.3TRG1
SW2
SW1
Note 1
Line 1
Sensor MH-19
Line 2
Intelligent Infrared CO2 Module
Line 3
------------------------------------------------------------
Line 4
https://www.winsen-sensor.com/d/files/PDF/Infrared%20Gas%20Sensor/NDIR%20CO2%20SENSOR/MH-Z19%20CO2%20Ver1.0.pdf
Note 2
Line 2
Sensor VEML6075
Line 3
UV Light Sensor
Line 4
-----------------------------------------------------------
Line 5
https://www.sparkfun.com/products/15089
J5
J4
J1
U2
J2
LED1
J3
C1
Capacitance
1uF
R4
Resistance
10KΩ
R1
Resistance
1KΩ
Q3
Manufacturer Part Number
BSS138
R3
Resistance
10KΩ
Q2
Manufacturer Part Number
BSS138
C2
Capacitance
1uF
J6
J6
J6
RTS
DTR
DTR
BOOST_EN
+V_SOLAR

Adjust Voltaje to 5V