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  1. This Guide explains the Firmware loading process for OpenEVSE.
    • This Guide explains the Firmware loading process for OpenEVSE.

    • This guide is specifically intended for the Windows Operating system. Advanced users may use a similar process for MacOS and LINUX.

  2. Download Windows Driver for the OpenEVSE Programmer.  Windows Driver
    • Download Windows Driver for the OpenEVSE Programmer. Windows Driver

    • Extract files into a folder such as C:\Drivers\AVRISP\

    • Go into Device manager by right clicking on "My Computer" and selecting Manage or through the Control Panel

    • Locate the USBasp programmer. It is likely the unknown USB device. Right click and select "Update Driver Software"

    • No device drivers are needed for MacOS and LINUX.

  3. Download and install the WinAVR software. WinAVR
    • Download and install the WinAVR software. WinAVR

    • Select BOTH the Install Files and Add Path Options. Developers Notepad is Optional.

  4. Connect Programmer to OpenEVSE then connect to USB port on PC. The yellow wire on the 6 pin connector aligns with pin 1 of the ISP connector. The yellow wire on the 6 pin connector aligns with pin 1 of the ISP connector.
    • Connect Programmer to OpenEVSE then connect to USB port on PC.

    • The yellow wire on the 6 pin connector aligns with pin 1 of the ISP connector.

  5. Download a pre-compiled HEX file to load to OpenEVSE.
    • Download a pre-compiled HEX file to load to OpenEVSE.

Christopher Howell

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