Matrix-orbital DD-DB1 LCD/VFD Dev Board Manuale Utente Scaricare il pdf (Pagina 17)

Dallas One-Wire

Mating Cables

Temperature Probe

The Dallas One-Wire header affords the ability to add a variety of devices to the DevDevil for purposes ranging from

temperature sensing to external memory. Multiple devices can be connected to this bus and accessed using the DevDevil.

Only non-parasitic devices, those drawing power from the dedicated pin rather than the data line, have been tested,

however, the data line has been pulled high through the nearby resistor to facilitate parasitic operation. A simple

temperature monitoring application has been provided using the Matrix Orbital probe.

Manual Override

A Manual Override feature is available on the DevDevil to override all settings to their factory defaults. This override can

be extremely useful if the device becomes unresponsive or behaves in an undesirable fashion. To override the unit to the

values below, see the Manual Override entry in the Troubleshooting section below. Please note that the settings will be

temporary and will revert when power is cycled once more, so it is recommended that desired settings are saved.

Baud Rate 19200

C Address 0x50

Backlight 255

Contrast 128

Table 12: Manual Override Settings

Illustration 15: Dallas One-Wire Connector

Illustration 16: Manual Override

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Matrix-orbital DD-DB1 LCD/VFD Dev Board Manuale Utente Pagina 17