# ESP32 SensorNode PCB Layout, rev. 2

## Bill of Materials
  Type      | Qty |  Value  |    Footprint   
----------- | --- | ------- | ---------------
Si7021      |   1 | A20-GM1 | DFN-6          
Switch      |   1 |   -x-   | THT SW_PUSH_6mm
Resistor    |   2 |     22k | SMD 0805       
Capacitor   |   1 |   0.01u | SMD 0805       
Capacitor   |   3 |    0.1u | SMD 0805       
Capacitor   |   1 |      1u | SMD 0805       
Capacitor   |   1 |    4.7u | SMD 0805       
VoltageReg  |   1 |  TC1262 | SOT-223-3      
Resistor    |   3 |     22k | THT L6.3 P10.16
Resistor    |   1 |    2.7M | THT L6.3 P10.16
Resistor    |   1 |      1M | THT L6.3 P10.16
Resistor    |   1 |     47R | THT L6.3 P10.16
Capacitor   |   1 |      1n | THT P7.50 Disk 
Capacitor   |   1 |      1u | THT P2.50 Rect 
Capacitor   |   1 |    100u | THT P5.00 Elko 
Capacitor   |   1 |    460u | THT P5.00 Elko 
Diode       |   1 |  1N540x | THT            
----        | --  | ----    | ----           
Bat Holder  |   1 |   18650 | x              
ESP32       |   1 |   WROOM | x              
Pin 2x07 M  |   1 |   -x-   | THT P2.54 2x07 
Pin 1x06 M  |   1 |   -x-   | THT P2.54 2x07 
Pin 1x04 M  |   1 |   -x-   | THT P2.54 2x07 
Pin 1x03 M  |   1 |   -x-   | THT P2.54 2x07