The objective of the current human study is to verify the components of the Artificial Pancreas Control Software during an outpatient study. This master controller software is designed to be used in conjunction with two subcutaneous continuous glucose monitoring systems to regulate blood glucose levels as well as two Omnipod pumps, one for administering insulin and one for administering glucagon. The sensors communicate wirelessly with two sensor receivers which will be interfaced with the APC by wireless USB connection. The insulin and glucagon pumps will be controlled by the APC through a wireless USB connection. The algorithm included in the APC is an automated version of the Adaptive Proportional Derivative (APD) insulin and glucagon control algorithm, which was previously studied as an investigational device. The Automated APD has been studied in vivo (in 13 experiments, each 28 hr in length, with automated adjustment of pumps) and no serious adverse effects were noted. The APC will be tested in vivo during 28 hour experiments in an outpatient setting in preparation for home testing.