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-rw-r--r--examples/SDdatalogger/datalogger.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/examples/SDdatalogger/datalogger.py b/examples/SDdatalogger/datalogger.py
index dcac0091e..6123db7d2 100644
--- a/examples/SDdatalogger/datalogger.py
+++ b/examples/SDdatalogger/datalogger.py
@@ -11,6 +11,10 @@ switch = pyb.Switch()
# loop
while True:
+ # wait for interrupt
+ # this reduces power consumption while waiting for switch press
+ pyb.wfi()
+
# start if switch is pressed
if switch():
pyb.delay(200) # delay avoids detection of multiple presses