readme update

Author: Adminius

ESP32_can_connection.png

@@ -3,9 +3,10 @@ CAN to BlueTooth Adapter for [ScanMyTesla](https://sites.google.com/view/scanmyt
 
 
 ## Hardware
-- Any ESP32 based board. (e.g. Wemos D1 mini ESP32)
-- Any DC-DC Step Down to 5V, because most ESP32 boards can't handle car voltages (~14V). (e.g. DC Power Shield for WEMOS D1 mini)
+- Any ESP32 based board. (e.g. Wemos D1 mini ESP32), doesn't work with ESP32-C*, -S*, -H* series, only with ESP32
+- Any DC-DC Step Down to 5V, because most ESP32 boards can't handle car voltages (~16V). (e.g. DC Power Shield for WEMOS D1 mini)
 - SN65HVD230 CAN bus transceiver **without termination resistor**
+- Tested with [Arduino ESP32 Core](https://github.com/espressif/arduino-esp32) v3.0.4
 
 ## Connection
 

README.md

@@ -0,0 +1,12 @@
+# ESP32-ScanMyTesla
+CAN to BlueTooth Adapter for [ScanMyTesla](https://sites.google.com/view/scanmytesla/home) on ESP32
+
+
+## Hardware
+- Any ESP32 based board. (e.g. Wemos D1 mini ESP32), doesn't work with ESP32-C* , -S*, -H* series, only with ESP32
+- Any DC-DC Step Down to 5V, because most ESP32 boards can't handle car voltages (~16V). (e.g. DC Power Shield for WEMOS D1 mini)
+- SN65HVD230 CAN bus transceiver **without termination resistor**
+
+## Connection
+
+![Connection diagram](ESP32_can_connection.png "Connection diagram")