Velleman projects K8055N Assembly instructions - Manual (Page 11)

11
Select the correct address in the test program
DIGITAL OUTPUTS :
8 open collector contacts, to be connected with suitable inputs.
These exits function as ‘dry contact points’: you need an external voltage to control a component such as a LED or a
relay switch.
ANALOGUE OUTPUTS :
 2 analogue outputs with an output voltage between 0 and +5V (impedance 1K5).
 2 PWM outputs with a pulse width modulation between 0 and 100%.
A fixed PWM frequency (46.86KHz) is used.

REMARK: the analogue outputs and PWM outputs are always activated /deactivated together.
Connection / settings
The demo software makes it easy to experiment. Start by selecting the
address : tick off SK5 and/or SK6 (see address selection).
ATTENTION : Execute these settings before connecting the kit with the
computer or before booting the computer.

Connect the USB cable.
 LED LD3 'Power' lights up if the connection has been executed properly.
 After startup LD8 (output 8) will flash momentarily to indicate that the circuit works as it should.
 Start the program 'K8055_Demo.exe'.

Next press the 'connect' button to connect the K8055 with the computer.
21. Test procedure
SK5 SK6 ADDRESS
ON ON 0
OFF ON 1
ON OFF 2
OFF OFF 3