Serial port circuit(with protection)
You can choose other power sources to continue to supply power to the incubator and ensure the normal operation of the machine
USB Host Shield is an add-on board for Arduino development platform and contains all of the digital logic and analog circuitry necessary to implement a full-speed USB peripheral/host controller with your Arduino
Microcontroller: ATMEGA328P
YRSP-A12 AC Surge Protection Device 2P 20-40KA Iimp:7kA T1+T2 Analog Key Serial port circuit(with protection)YRSP A12 AC Surge Protection Device 2P 20 40KA Iimp: 7kA T1+T2 YTTS1 C40 series surge protection device (in short SPD, alias: surge suppressor surge arrester) is suitable for TN S, TN C S, TT, IT etc.. , power supply system of AC 50 60Hz,<380V, installed on the joint of LPZ1 or LPZ2 and LPZ3. It's designed according to IEC61643 1, GB18802. 1, it adopts 35mm standard rail, there is a failure release mounted on the module of surge protection device,