Safety Touch Buttons Operate Within Dual Microcontroller Design

Jan. 1, 2001

Operating within an internal design based on dual microcontrollers, STB self-checking optical touch buttons include a diverse-redundant microcontroller circuit the monitors the function of the primary photoelectric circuit through the use of additional emitter and receiver elements. The buttons also include separate redundant outputs.
Because they switch when their light beam is broken by a simple insertion of a finger, the ergonomically designed buttons eliminate hand, wrist and arm stresses associated with repeated switch operation. No physical pressure is required to operate the buttons.
The emitter and receiver responses are monitored continuously by the microcontrollers and the buttons can immediately detect any internal component failure and indicate the presence of the failure via a red fault LED. They are also immune to ambient light, EMI and RFI interference. Pricing is $112.

Sponsored Recommendations

Understanding Thermal Challenges in EV Charging Applications

March 28, 2024
As EVs emerge as the dominant mode of transportation, factors such as battery range and quicker charging rates will play pivotal roles in the global economy.

Board-Mount DC/DC Converters in Medical Applications

March 27, 2024
AC/DC or board-mount DC/DC converters provide power for medical devices. This article explains why isolation might be needed and which safety standards apply.

Use Rugged Multiband Antennas to Solve the Mobile Connectivity Challenge

March 27, 2024
Selecting and using antennas for mobile applications requires attention to electrical, mechanical, and environmental characteristics: TE modules can help.

Out-of-the-box Cellular and Wi-Fi connectivity with AWS IoT ExpressLink

March 27, 2024
This demo shows how to enroll LTE-M and Wi-Fi evaluation boards with AWS IoT Core, set up a Connected Health Solution as well as AWS AT commands and AWS IoT ExpressLink security...

Comments

To join the conversation, and become an exclusive member of Electronic Design, create an account today!