erickirkland

Hello AlanKam, I think I have purchased the same device as you. For my application I want to open and close the relays via Excel VBA. It appears I am calling the usb_relay_init() correctly and getting a "0" result I know the serial number I need to call: BL1M2 When I used the usb_relay_device_open("BL1M2") I get a bad DLL call error. I also cannot use the "enumerate" function, and any of the open/close relays functions. I am wondering if I am sending or receiving the wrong types from the DLL. Do you know what arguments are expected by each DLL function you listed above, and what are returned? If it isn't obvious, this is well above my pay grade!