The hardware files for the {{pl||JTAG shield}} are available [https://github.com/spark/shields/tree/master/Programmer%20Shield here] (''Spark, GitHub, Anglais'').
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The hardware files for the {{pl|522|JTAG shield}} are available [https://github.com/spark/shields/tree/master/Programmer%20Shield here] (''Spark, GitHub, Anglais'').