first running version

main.py

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+# simple example
+#
+
+from machine import Pin
+from pxsi import Pxsi
+
+with Pxsi('MyBox'):
+    t = 0.5  # blink interval
+    a = 'x'
+    b = 0    # changes to this variable will be converted to int !
+
+Pxsi.add(d=0.0)
+
+
+# called whenever a is changed remotely
+def change_a(value):
+    print(f'changed t: {value!r}')
+    return str(value)  # return validated value
+
+
+led = Pin(6, Pin.OUT)
+
+
+def main():
+    while 1:
+        led.toggle()
+        Pxsi.handle(t)  # wait at most for the given blink interval
+        Pxsi.vars['b'] += 1
+
+main()