diff --git a/README.md b/README.md
index b015367..ed49542 100644
--- a/README.md
+++ b/README.md
@@ -35,14 +35,15 @@ Atmega328 @ 16MHz  |      X       |             |            |
 Atmega328 @ 12MHz  |      X       |             |            | 
 Atmega32u4 @ 16MHz |      X       |             |            | Use SDA/SCL on pins D2 & D3
 Atmega32u4 @ 8MHz  |      X       |             |            | Use SDA/SCL on pins D2 & D3
-ESP8266            |      X       |             |            | SDA/SCL default to pins 4 & 5 but any two pins can be assigned as SDA/SCL using Wire.begin(SDA,SCL)
+ESP8266            |      X       |             |            | I2C: just works, SPI: SDA/SCL default to pins 4 & 5 but any two pins can be assigned as SDA/SCL using Wire.begin(SDA,SCL)
+ESP32              |      X       |             |            | I2C: just works, SPI: SDA/SCL default to pins 4 & 5 but any two pins can be assigned as SDA/SCL using Wire.begin(SDA,SCL) 
 Atmega2560 @ 16MHz |      X       |             |            | Use SDA/SCL on pins 20 & 21
 ATSAM3X8E          |      X       |             |            | Use SDA/SCL on pins 20 & 21
 ATSAM21D           |      X       |             |            | 
-ATtiny85 @ 16MHz   |             |      X       |            | 
-ATtiny85 @ 8MHz    |             |      X       |            | 
-Intel Curie @ 32MHz |             |             |     X       | 
-STM32F2            |             |             |     X       | 
+ATtiny85 @ 16MHz   |              |     X       |            | 
+ATtiny85 @ 8MHz    |              |     X       |            | 
+Intel Curie @ 32MHz |             |             |     X      | 
+STM32F2            |              |             |     X      | 
 
   * ATmega328 @ 16MHz : Arduino UNO, Adafruit Pro Trinket 5V, Adafruit Metro 328, Adafruit Metro Mini
   * ATmega328 @ 12MHz : Adafruit Pro Trinket 3V