modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

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#!/bin/sh
 
num_fail=0
 
for test in check*
do
    ./"$test" \
         && echo "PASS: $test" \
         || {
            echo "FAIL: $test"
            num_fail=$(( ${num_fail} + 1))
         }
 
done
 
exit $num_fail