diff --git a/tests/extmod/machine_pinbase.py b/tests/extmod/machine_pinbase.py
new file mode 100644
index 0000000000..07a489a596
--- /dev/null
+++ b/tests/extmod/machine_pinbase.py
@@ -0,0 +1,25 @@
+try:
+    from umachine import PinBase
+except ImportError:
+    from machine import PinBase
+
+
+class MyPin(PinBase):
+
+    def __init__(self):
+        print("__init__")
+        self.v = False
+
+    def value(self, v=None):
+        print("value:", v)
+        if v is None:
+            self.v = not self.v
+            return int(self.v)
+
+p = MyPin()
+
+print(p.value())
+print(p.value())
+print(p.value())
+p.value(1)
+p.value(0)
diff --git a/tests/extmod/machine_pinbase.py.exp b/tests/extmod/machine_pinbase.py.exp
new file mode 100644
index 0000000000..b31cd98308
--- /dev/null
+++ b/tests/extmod/machine_pinbase.py.exp
@@ -0,0 +1,9 @@
+__init__
+value: None
+1
+value: None
+0
+value: None
+1
+value: 1
+value: 0