diff --git a/README.rst b/README.rst
index 68163d9..e88afa2 100644
--- a/README.rst
+++ b/README.rst
@@ -13,7 +13,15 @@ Introduction
     :target: https://travis-ci.com/adafruit/Adafruit_CircuitPython_ST7735
     :alt: Build Status
 
-displayio driver for ST7735 TFT-LCD displays.
+displayio driver for ST7735B TFT-LCD displays.
+
+Hardware
+=========
+
+This driver does not work for any current Adafruit Displays. It is intended to be used with displays
+with an ST7735B or similar chipset and was created using initialization codes from the Arduino Library.
+If you have a newer Adafruit Display with a ST7735R or ST7735S chip,
+please visit `the Adafruit ST7735R Driver <https://github.com/adafruit/Adafruit_CircuitPython_ST7735R>`_.
 
 Dependencies
 =============