Update README.md

leifclaesson · Sep 7, 2015 · 8c56c2f · 8c56c2f
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Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/README.md b/README.md
@@ -31,7 +31,8 @@ boards and shields, including:
  - Arduino Ethernet Shield
  - Arduino YUN – use the included `YunClient` in place of `EthernetClient`, and
    be sure to do a `Bridge.begin()` first
- - Arduino WiFi Shield
+ - Arduino WiFi Shield - if you want to send packets > 90 bytes with this shield,
+   enable the `MQTT_MAX_TRANSFER_SIZE` define in `PubSubClient.h`.
  - Sparkfun WiFly Shield – when used with [this library](https://github.com/dpslwk/WiFly)
  - Intel Galileo/Edison
  - ESP8266