TOSHIBA TLP250H Photocoupler Power Transistor Gate Driver IC (Original) 19mm Insulation Friction Cotton Tape Its digital voltmeter

Its digital voltmeter

which gives the resistance value to measure the moisture value

Brown for these 120K resistors

General Purpose Switch | Motor Control | Small Power Electronics Project | DIY | Prototyping

TOSHIBA TLP250H Photocoupler Power Transistor Gate Driver IC (Original) 19mm Insulation Friction Cotton Tape Its digital voltmeterThe TOSHIBA TLP250H is a photocoupler designed for driving power transistors, such as IGBTs and power MOSFETs, in various electronic applications. It consists of a GaAAs infrared light emitting diode (LED) optically coupled to an integrated high gain, high speed photodetector IC chip, all housed in an 8 pin DIP package. Features High Output Current: Capable of sourcing and sinking up to 2. 5 A, suitable for driving large gate capacitances. High Speed