HI, Thought I would share some pics of my latest project. This will obviously be interfaced via my OWFS network and a yet to be purchased Ipad for the interface, need an excuse to get an Ipad..
I have finally got around to assembling my new control panel. I have not fired it up yet however just completed 90% of the wiring. Picture tell 1000 words http://img.photobucket.com/albums/v319/rjconway/ControllerR0-1.jpg http://img.photobucket.com/albums/v319/rjconway/ControllerR0-3.jpg http://img.photobucket.com/albums/v319/rjconway/ControllerR0-4.jpg http://img.photobucket.com/albums/v319/rjconway/ControllerR0-2.jpg I have tried hard not to have to build any of the IO interfaces as I did not want a lot of DIY electronics. I will have a minor mod on the 4 channel relay board to convert it into a 4 channel pwm output by simply replacing the relays with FETs. I have used Opto isolated IO as I want this to be as reliable as I can make it. The control panel is for my new Aquarium. This panel is only switching low voltage devices 12 and 24VDC. The control panel has the following capabilities at the moment 16 Digital outputs 8 Digital Inputs 2 pulse inputs 6 analog inputs 4 PWM outputs Devices installed on the control panel from left-to-right / Top-to-bottom, refer to pics above BAE911 with Relay 24VDC power supply 12 VDC power supply Power distribution terminals I2C to digital converters 2 off piggyback on top of each other 8 channel relay board (Opto Isolated) 4 channel relay board which I shall take out the relays and fit some FET's for PWM output (Opto Isolated) 8 channel digital input 5VDC or 12/24VDC inputs (Opto Isolated) RTD transmitters used for two temperature measurements (Still missing one unit) (4-20mA over 250ohm = 1-5VDC outputs) Terminals Relays used as Hardwired failsafe
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