The present invention provides a precision agricultural-device control system for controlling agricultural implements (such as seed feeders and fertilizer sprayers) or on a line planter. More particularly, a command and control module is provided that is in communication with an interface module and provides commands in accordance with a field prescription. The interface module wirelessly transmits command messages to the agricultural implements or and receives monitoring messages from the agricultural implements. In certain embodiments, a novel, low latency and high reliability wireless protocol or using repeats is used to communicate wirelessly with the agricultural implements.