Electronic device for harvester head control; electronic controllers, sensors, and monitors for agricultural harvesters; vehicle or implement mounted apparatus comprising sensors, downloadable and recorded computer hardware and software for monitoring and controlling an agricultural harvester head; Downloadable and recorded computer software and hardware for monitoring and troubleshooting the operation of mechanized agricultural harvester and harvester head during harvesting operations; control systems comprising electronic controllers and downloadable and recorded computer software, for controlling the height with respect to a ground surface of an agricultural tool or implement attached to a moving vehicle; automated electronic steering control system for agricultural harvesters; automated electronic steering control system for agricultural sprayers; automated steering electronic control module for agricultural harvesters; electronic sensors, namely, radar sensors for agricultural harvesters; downloadable mobile applications for diagnostics of, and updating software for, controllers for agricultural machines