Systems for deploying and monitoring fishing rigs are described. A jug fishing rig in various embodiments includes a float supporting tackle and a signal assembly. The signal assembly may include a lamp and an accelerometer for detecting movement of the float in response to a fish striking the tackle. When the detected movement exceeds a threshold acceleration, the lamp emits an alert such as a color change. The signal assembly may include a panel of programmable MEMS components, including a microprocessor. The panel may be attached to a disk that fits between the neck of the float and its cap, securely supporting the signal assembly inside the float.
