I changed the title to include [SOLVED] 
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Project UPDATE
LED panel mounted in frame, spark core set in a plasic box with thermocouple. Project ready for field trials!!!
next step, sort out a PCB to mount the sparkcore on and a connector for the matrix + some power input possibly.
Also, (say it quickly and it doesn’t sound too hard) master ITTT to sent out of bounds temperature warnings by email or SMS.
Thank you for your help everyone 
you know who you are 
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