extmod: Add machine time_pulse_us function (at C and Python level).

The C implementation is taken from the DHT driver.

1 files changed, 1 insertions, 0 deletions

diff --git a/py/py.mk b/py/py.mk
index aa992da72..0b2b2246e 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -176,6 +176,7 @@ PY_O_BASENAME = \
 	../extmod/modubinascii.o \
 	../extmod/virtpin.o \
 	../extmod/machine_mem.o \
+	../extmod/machine_pulse.o \
 	../extmod/machine_i2c.o \
 	../extmod/modussl.o \
 	../extmod/modurandom.o \