Post ID 47537

Engine Relay Board Hookup Guide. As gear like engines and relays need high present, microcontrollers cannot drive them.

to be able to drive them, we are in need of unique drivers that are current. Motor relay board comes to the photo as a result of these needs. Engine relay board drives engines and relays by providing enough present. It could drive one relay and four DC engines or one motor that is stepper a time. The motor relay board eases the job of interfacing motor that is external AC products utilizing the ATmega32 microcontroller. This has ULN2003 motorists for high present applications like motor driving and relay driving circuits for AC unit interfacing.

You will find three primary parts for a engine relay board.

Relay Motorist

Utilizing the supplied relay circuit, 230V devices could be managed. This area is useful for automating the off and on.

Engine Driver

The DC engine could be managed applying this part, there clearly was 4 driver that is ULN2003 lines for driving engines and every provides enough present to manage the DC engine.

Exterior Interfaces

* Terminal block (3pin) –for linking relay IN and OUT * Terminal block(7pin) – for linking 4 lines of engine, 1 for energy and 2 pins for ground

Linking the Board

* switch on the board SW1 that is using LED will glow. * Connect the slot connector to your standard slot. * Shunt the jumpers in J4. * Use jumper caps to pick port pins. First four pins (0, 1, 2&3) are relay selectors. The relay could be attached to 4 pins. * Use port pins 4,5,6&7 for engines in the near order of engine D, C, B&A. * Set the input slot pin correspondingly to show ON/OFF the relay/motor.


There is certainly a header that is alternate for accessing specific pins.

The Jumper description can be as below for J4.

The relay and engine inputs could be straight accessed because of the header J5. (more…)