Off-target placement of inputs is a costly and time consuming problem for agricultural producers. Typical placement problems include: skipped areas, double coverage, unintentional coverage, or coverage of environmentally sensitive areas. Reducing or eliminating off-target application of fertilizer and chemicals is increasingly important in a society that places high value on environmental quality and to global markets that are extremely competitive. Recent trends in agricultural field machinery exploit the use of microcontrollers to enhance machine functionality. Controller Area Networks (CAN) were originally developed in the truck and bus industries to facilitate communications between microcontrollers. This technology is now being applied by agricultural equipment manufactures, and is common place on most equipment marketed in the US and Europe. With the advent of this technology engineers are now able to control the placement of inputs with greater precision and accuracy than ever before. When “precision agriculture” was originally introduced the popular press discussed “farming by the square meter.” This was not the case as most control technologies were focused on “boom-width” control. Today, the cost of precision agricultural technology has been reduced to a level where every farmer can afford DGPS. The same cost savings will soon be realized for control of individual spray nozzles, seed meters, and star wheels for metering of granular materials. A range of new products exploiting CAN technology will be released by manufacturers at a rate never seen in agriculture before. These technological developments will enable “farming by the square meter” with a level of precision and accuracy never imagined before in agriculture. Will producers be able to harness and capitalize on these developments?