Update README.md

Author: codingABI

README.md

@@ -51,6 +51,12 @@ This project is licensed under the terms of the 2-Clause BSD License [Copyright
 - Android device with the self-made app: *id3esp32obd2* (https://github.com/codingABI/id3esp32obd2/id3esp32obd2.apk)
 
 Power consumption: 0.6W (0.3W when Android device is not connected), 0W when powered off by the toggle switch S1
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+### Used Arduino development environment
+
+- Arduino IDE 2.3.4 or 1.8.19
+- arduino-esp32 2.0.17
+
 ### OBD2 and power supply
 The VW ID.3 has an ODB2 female connector below the steering wheel: