Summary of Contents for ReefNet SENSUS PRO
- Page 1 SENSUS PRO Developer’s Guide Published October 17, 2002 ©2002 ReefNet Inc.
- Page 2 A separate Developer’s Guide is available for SENSUS users. 1.1 Terminology All references to the device refer to a SENSUS PRO recorder connected via the universal cradle to a host computer system. The host may be any of the following: PC, Mac, Palm handheld, Pocket PC, Unix workstation, etc.
- Page 3 The two cradle ports are wired together with the RX/TX lines swapped between them. The software interface requires direct access to the serial port being used by the SENSUS PRO device. The only signals used are RX, TX, and GND. No flow control signals are implemented, and these should be disabled by the software interface to prevent erroneous transmissions.
- Page 4 CRC = 0xEF03 3.4 Handshaking Communicating with a SENSUS PRO device begins with the process of awakening it from its normal sleep mode. Once every second, the device briefly checks the condition of the incoming data line. If the line is idle, the device returns to sleep mode.
- Page 5 After transmitting the handshake packet, the device waits for a one-byte instruction code from the host. If an instruction code is sent within 1 second, it is processed. Otherwise the device stops waiting and returns to sleep mode. 3.5 Downloading Dive Data To download the contents of the device flash memory, you must Wake the device as outlined above Wait at least 10 ms after the last handshake byte is received...
- Page 6 3.6 Programming the Sampling Interval SENSUS PRO devices can be programmed to sample depth and temperature at any interval between 1 second and 127 seconds. Storage capacity is inversely proportional to sampling interval: Table 5 -- Examples of sampling interval vs. capacity...
- Page 7 ReefNet cannot be held responsible for damage to a connected device caused by software/hardware other than ReefNet’s SENSUS PRO MANAGER + cradle. Nor can ReefNet be held responsible for damage caused by tampering with either a SENSUS PRO device or its cradle.
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