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Yes, it should be noted that SMS is an email system. If you are efficient in programming, you connect the arduino to your computer, have your computer collect serial out, and make your computer send an SMS.
Could I Use high power electrolysis instead of an abrasive when etching? Theory being that running a current through the HCL will let it pick up the copper ions very easily- especially at high currents. This would allow makers to have super fine traces without the worry of brushing them off, or having them wilt off over time.