pairprogramming : cast de booléens vers les hexa attendu par modbus

pyheatpump/modbus.py

 def write_coil(var_value):
     global serial_conn
     connect()
-
+    var_value.value = int(var_value) * 0xFF00
     logger.debug('write_coil address: %s, value: %s',
         var_value.address, var_value.value
     )