IQ Switch
®
ProxSense
®
Series
Copyright © Azoteq (Pty) Ltd 2022
IQS227-228BEV02 Evaluation Kit User Guide
Page
7
of
10
All Rights Reserved
Revision 1.0
November 2022
Figure 4.4 IQS227B Proximity Event
When a finger comes closer and touches the button, a Touch event will be triggered. Figure 4.5
shows what a typical Touch event should look like. Note that the Counts and LTA bars have turned
red to indicate a Touch event and the Filter Halt is still Active.
Figure 4.5 IQS227B Touch Event
The various IQS227B module boards can now be evaluated to observe the different obtainable
sensitivities for a wide range of applications.
4.3 Using the GUI with the IQS228B IC
The IQS228B IC operates similarly to the IQS227B IC when in Prox mode, but differently when in
Touch mode. Place the IQS228B Green module board in the socket and evaluate the board. The
