beautypg.com

3 displaying text – Matrix Orbital VK204-25 Legacy User Manual

Page 14

background image

Figure 11: Bypassing 240 ohm Resistor

NOTE The GPOs do not have any over current or over / under voltage protection so

care must be taken when using them. For instance if the external device is a relay it must

be fully clamped using a diode and capacitor to absorb any generated back electro-motive

force (EMF).

Figure 12: Clamping a Relay

3 Displaying Text

This chapter describes the various text display commands in detail.

Matrix Orbital

VK204-25

11