ML-OA-RS232 – Option board

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Option board to add a secondary accessory to an ML-417ADS

An ML-417ADS data logger is provided with an RS232 port to connect an accessory, an accessory is considered a device not being a typical sensor/actuator.

The currently available accessories are: a TFT-display, a JPG-camera, a GPS-receiver or an Irridium satellite transceiver.

An ML-OA-RS232 option board can be used to add a secondary accessory to an ML-417ADS data logger. So you can, in example, connect a TFT-display together with a camera now or create a dual camera system (e.g. to take pictures in opposite directions at a critical point in a trajectory).


Some useful notes

Accessories can be powered from the 5V@800mA output of the accessory port of an ADS, unless a) the combined draw exceeds 800mA, b) the secondary accessory should be switched on at different times, c) an accessory requires a voltage other than 5V. The ML-OA-RS232 option board has a control output to switch on an alternative power source, e.g. an ML-OP-524 when connect to its control input.


  • Baudrate: 300…230k4bps
  • Control output: Off=0V, On=3,6V

Discover the possibilities

Want to know more about what YDOC can do to help you with your quest for the right data logger? Do not hesitate to get in contact.