The discussion revolves around the design and implementation of a counting device that registers the completion of circuits, specifically focusing on a 4-digit display that counts each closure of input and output contacts. Participants explore various components and strategies for achieving this functionality, including hardware and software solutions for debouncing signals.
Participants present multiple approaches and suggestions, indicating that there is no consensus on a single solution or method for the counting device. Various techniques for debouncing and circuit sensitivity are discussed, but no agreement is reached on the best approach.
There are unresolved assumptions regarding the effectiveness of the proposed debouncing methods and the specifics of modifying the counter for skin conduction detection. The discussion does not clarify the limitations of the suggested components or methods.
Individuals interested in electronics design, particularly those working on counting mechanisms or circuit completion devices, may find this discussion relevant.
mikeusru said:I need a device with something like a 4-digit LCD or LED display which counts the amount of times its input and output contacts close. Basically, 1 count for each completed circuit. I was told things like these exist and are cheap, but don't know what to call it.
Thanks in advance!
http://www.eetimes.com/discussion/break-point/4024981/My-favorite-software-debouncersEE Times said:Consider the simplest of all debouncing strategies: read the switch once every 500ms or so, and set a flag indicating the input's state. No reasonable switch will bounce that long. A read during the initial bounce period returns a zero or a one indicating the switch's instantaneous state. No matter how we interpret the data (in other words, switch on or off) the result is meaningful. The slow read rate keeps the routine from deducing that bounces are multiple switch closures.