diff --git a/lib/onewire/onewire.py b/lib/onewire/onewire.py
index ddf14df..5d99ca0 100644
--- a/lib/onewire/onewire.py
+++ b/lib/onewire/onewire.py
@@ -45,9 +45,7 @@ def read_bit(self):
         pin(1) # half of the devices don't match CRC without this line
         i = machine.disable_irq()
         pin(0)
-        sleep_us(1)
         pin(1)
-        sleep_us(1)
         value = pin()
         enable_irq(i)
         sleep_us(40)
@@ -71,7 +69,6 @@ def write_bit(self, value):
 
         i = machine.disable_irq()
         pin(0)
-        sleep_us(1)
         pin(value)
         sleep_us(60)
         pin(1)