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Welcome to Flux

Treat Flux like your intern. Tell it what you'd like to build and it'll get to work. You can also ask it questions, brainstorm ideas, and teach it your preferences. Learn More

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Component Selection Workflow
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Write I2C initialization code
Generate firmware skeleton
SL1
SL2
UART0_RX
ESP32_EN
UART0_TX
UART0_RX
BOOST_EN
ESP32_EN
ESP32_RX2
RTS
ESP32_EN
UART0_TX
IO0
ESP32/I2C_SCL
ESP32/I2C_SDA
ESP32_TX2
DTR
ESP32/I2C_SCL
DTR
ESP32/I2C_SDA
BOOST_EN
ESP32_RX2
IO0
ESP32_TX2
ESP32/I2C_SCL
IO0
RTS
ESP32/I2C_SDA
U1
Manufacturer Part Number
AP2112K-3.3TRG1
SW2
+3.3V
+3.3V
+3.3V
SW1
VBAT
+3.3V
+3.3V
+3.3V
VBOOST
+V_SOLAR
+3.3V
VBAT
VBOOST
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
J1
Note 2
Line 2
Sensor VEML6075
Line 3
UV Light Sensor
Line 4
-----------------------------------------------------------
Line 5
https://www.sparkfun.com/products/15089
LED1
U2
J2
J3
C1
Capacitance
1uF
R4
Resistance
10KΩ
J5
R1
Resistance
1KΩ
Q3
Manufacturer Part Number
BSS138
R3
Resistance
10KΩ
Q2
Manufacturer Part Number
BSS138
C2
Capacitance
1uF
J4
J6

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    ENVIRONMENTAL EXPOSURE RISK METER

    ENVIRONMENTAL EXPOSURE RISK METER thumbnail
    Environmental exposure risk measuring device based on ESP32, ultraviolet light (UV) and CO2 gas sensor modules. It has a voltage booster based on MT3608 chip and a solar panel lithium battery charger with MPPT based on CN3791 chip.

    Properties

    Properties describe core aspects of the project.

    Pricing & Availability

    Distributor

    Qty 1

    Digi-Key

    $1.32–$1.89

    LCSC

    $0.86–$1.00

    Mouser

    $1.03

    Controls