Generate entropy with ADC reading floating pin

[rgblamp.git] / adc_random.h

diff --git a/adc_random.h b/adc_random.h
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+++ b/adc_random.h
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+/*
+ * File:   adc_random.h
+ *
+ * Generate a random 8-bit value by reading an unused (floating) IO pin.
+ */
+
+
+#ifndef _ADC_RANDOM_H
+#define _ADC_RANDOM_H
+
+/* Return a random 8-bit value */
+unsigned char adc_random();
+
+#endif