From 7f1ca664499e2406ac03ceca9b22c4406a921cda Mon Sep 17 00:00:00 2001 From: Sandeep Mistry Date: Mon, 4 Sep 2017 21:03:00 -0400 Subject: [PATCH] Update README.md Add note for #34. --- README.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/README.md b/README.md index 4c44783..12191d7 100644 --- a/README.md +++ b/README.md @@ -27,6 +27,8 @@ An [Arduino](http://arduino.cc/) library for sending and receiving data using [L `NSS`, `NRESET`, and `DIO0` pins can be changed by using `LoRa.setPins(ss, reset, dio0)`. `DIO0` pin is optional, it is only needed for receive callback mode. If `DIO0` pin is used, it **must** be interrupt capable via [`attachInterrupt(...)`](https://www.arduino.cc/en/Reference/AttachInterrupt). +**NOTE**: Some boards (like the Arduino Nano), cannot supply enough current for the SX127x in TX mode. This will cause lockups when sending, be sure to use an external 3.3V supply that can provide at least 120mA's when using these boards. + ## Installation ### Using the Arduino IDE Library Manager