ST L293d IC Push-Pull Four Channel Driver with Diodes 2SC5858 NPN Silicon BJT and the male stereo jack

and the male stereo jack size is 2

relays are used to perform switching operations  without manual touch

Type  Laser Diode  Model No

meaning the default I2C address of the chip will be 0x5A

ST L293d IC Push-Pull Four Channel Driver with Diodes 2SC5858 NPN Silicon BJT and the male stereo jackThe ST L293d is a four channel push pull driver with diodes. This device is a four channel monolithic integrated high voltage, high current driver that accepts standard DTL or TTL logic levels and drives inductive loads (such as relays, solenoids, DC, and stepping motors) and switching power transistors. Each pair of channels has an enable input to facilitate use as two bridges. The logic has a separate supply input that allows it to operate at a