Quoted from DickHamill:This kit works with Weebly. You remove your CPU chip from the Weebly, insert it in this board, and plug into your Weebly MPU. Tell RoyGBev that you're putting it in a Weebly and you have 7 digits and he can flash the Arduino with the right options for you.
https://pinside.com/pinball/market/shops/1304-roygbev-pinball/09092-retropinupgrade-rev-102-arduino-board-assembled-programmed
Sweet!