The "USB Servo Controller with ADC" from Rhydolabz is a very compact solution for controlling up to eight RC servos from a PC. Each servo speed and range can be controlled independently. The user could control the servomotors by sending the desired command through USB from PC. Once connected to PC module will enumerate as Virtual COM Port . So any Program that can access RS232 can use to control this module. Servo Controller supports two protocols Mini SSCII and RHYDO-SSC protocol. The built in 2 ADC Port can be used for measuring any analog voltage ( ie. 2 Sensor values) and the other ADC channel is permanently connected to measure Servo Voltage. With appropriate command from host the module will do ADC conversion for the selected channel and send out the result via USB. This feature is extremely useful for monitoring any sensor value while controlling the servo and to detect the battery low condition.