Open-Source Microcontrollers for Science - Open-Source Lab: How to Build Your Own Hardware and Reduce Research Costs - page 68

FIGURE 4.7 Circuit diagram for thermistors.
The humidity sensor (HH10D) needs to be wired as shown in Figure 4.8 . It is connected to
the Aurdino and the MOSFET (ZVN4424A).
FIGURE 4.8 Wiring diagram for the humidity sensor.
However, as both the HH10D [ 2 ] and Arduino operate at different voltage values, the hu-
midity sensor must be wired through a Logic Level Shifter circuit as shown in Figure 4.9 [ 3 ] .
FIGURE 4.9 Wiring diagram for level shift circuit.