Key panels accept user information through standard, capacitive or inductive buttons and sends it to the Programmable Logic Controller (PLC). There is feedback on button event visual, audible or haptic.
- Texas Instruments supports mechanical buttons, inductive buttons through inductance-to-digital converter, and capacitive buttons by the CapTIvate™ technology embedded in MSP430 microcontrollers
- Button-press feedback by multi-channel LED driver, audio amplifier and piezo haptic drivers from Texas Instruments
- Input voltage of up to 24V is transformed to lower voltages using high-efficient DC/DC converter or LDOs from Texas Instruments broad power portfolio
- Interface to the PLC is Industrial Ethernet available in Sitara™ microcontrollers, or USB