Algorithm payload for test load Rocket lapan 2009 using atmega 128

One important part of the RUM (Roket Uji Muatan / Rocket Payload Test) is the payload. In this paper, payload designed to detect changes in temperature, pressure, and humidity at any altitude changes. To be able communicate with ground segment, used in communications equipment. On occasion it is also designed telecommand function to detect if there is damage to the payload. For payload to function properly, they invented algorithms. From the experiments, the payload can work well for sending data to a ground segment or telecommand to a height of 1 km.