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-rw-r--r--docs/library/network.PPP.rst7
1 files changed, 6 insertions, 1 deletions
diff --git a/docs/library/network.PPP.rst b/docs/library/network.PPP.rst
index 17a8d1c1c..15ab1da19 100644
--- a/docs/library/network.PPP.rst
+++ b/docs/library/network.PPP.rst
@@ -5,7 +5,12 @@ class PPP -- create network connections over serial PPP
=======================================================
This class allows you to create a network connection over a serial port using
-the PPP protocol. It is only available on selected ports and boards.
+the PPP protocol.
+
+.. note:: Currently only the esp32 port has PPP support enabled in the default
+ firmware build. PPP support can be enabled in custom builds of the
+ stm32 and rp2 ports by enabling networking support and setting
+ ``MICROPY_PY_NETWORK_PPP_LWIP`` to 1.
Example usage::