If you are not already using the pins in the front expansion, you should be able to add the sensor connections there. You can find more information in the “Front expansion” section in the Zumo user’s guide which can be found under the “Resources” tab on the Zumo’s product page. Since you are also using the Zumo reflectance sensor array, you should check to make sure the sensor array is not already using the pins. In this post Jon explains which pins are available and where you would check in the user’s guide to find out more about the pins.
- Grant