USB 8 Channel Relay Board - Automation, Robotics - 12V | eBay
will be the easier way for you to control the motors , as it provides software and all nessecary hardware , u have to give command in the software and can control the motors easily.
Another method is use a parallel port alternative and u can get various programs on net to control the board in parallel port way , search parallel port optoisolated board and u can get the examples also , in this method , u can modify easily if the example provided fails.
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8 Relay Board for your PIC, AVR Project - 12V ,
will be safer , if u learn a bit of microcontroller , it will be easy to control , cheaper since any mistake in the USB model can damage the USB port of your PC , but the later one will cost only a PIC
Decide from these
First one u have to plugged in, to be able to control , cant unplug and control
second one u have to buy the following things
1. A burner for hex files for microcontroller.
2. A platform to populate the electronics ( a breadboard or a premade dev board).
3. The microcontroller itself.
search each of them in google and post reply
Most simple 8-relay sequencer with two IC.
View attachment 62127
https://www.ti.com/lit/ds/symlink/cd4022b.pdf
though your diagram looked more simple and compact. where would i get one like in your diagram?
This connection came from my head,
but you can ask , if anyone has time and inspiration
to draw a full schematic with component values and desing the printed circuit board
... so if anyone could adjust this diagram to suit my needs that would be great.
Simply use a +12V power supply instead of the +9V, any 555 timer chip, a CD4017B(C) -- not an HC or HCT type! Instead of the 22kΩ resistor use a 100kΩ (multi turn) trimmer poti and a 10kΩ resistor in series (so you can't trim below 10kΩ), and, possibly, replace the 10µF elCo by a 22 or 33µF one to achieve your required 2 to 3 seconds time interval. And replace the 360Ω resistor (pin 4) by 470Ω or 560Ω.
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