A R71E RAM board programmer based on Arduino Uno

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BI1EIH and I designed a programmer for EX-314 RAM board which was used on IC-R71, IC-745, IC-751, etc. It's base on Arduino Uno with an adapter to connect EX-314 to Arduino. The project is opensourced, hope it can bring convenience to rescue the old rigs.
The ROM in the source code is dumped from my R71E. If you have IC-745, IC-751, IC-271, IC-471, IC-1271, you can share the ROMs here.

Usage
1. Connect ICOM EX-314 to the adapter, then plug the adapter on Arduino Uno.
2. Connect serial port on the adapter to computer, if the details of the backup/restore process are needed.
3. Power on the Arduino Uno.
4. Click the button on the adapter to dump the data of EX-314, output to serial port and backup the data to EEPROM simultaneously.
5. Press and hold the button for 1s to restore the data in EEPROM to EX-314.
6. Press and hold the button for 5s to restore the original data in the program to EX-314.

Project URL: https://github.com/bkbbk/ex314-programmer

Hope you enjoy it.