Differences

This shows you the differences between two versions of the page.

--- en-us_commands:digital_filter [2026/09/07 21:52] – 만듦 - 바깥 편집 127.0.0.1
+++ en-us_commands:digital_filter [2026/09/12 23:27] (current) – 바깥 편집 127.0.0.1
@@ Line 1: / Line 1: @@
-====== Digital Input Filters ======
+====== Digital input filters ======
-''IdigitalRead()'' and the ''Ibounce'' commands reduce brief input noise and switch chatter.
+Use these functions when an input signal needs filtering.
-^ Command ^ Arguments ^ Return Value ^ Operation ^
+  * [[:en-us_commands:reference:idigitalread|IdigitalRead()]] — Reads the input several times consecutively and updates the state only when all values match. If HIGH and LOW are mixed, it retains the previous stable state.
-| [[:en-us_commands:reference:idigitalread|IdigitalRead(pin, samples)]] | Pin number, repetition count | ''HIGH'' or ''LOW'' | Reads the input several times consecutively and updates the state only when all values match. If HIGH and LOW are mixed, it retains the previous stable state. |
+  * [[:en-us_commands:ibounce|Ibounce()]] — Applies a debounce time in both ON and OFF directions of the input.
-| ''Ibounce(pin, ms)'' | Pin number, stable time (ms) | Stabilized state | Applies a time filter in both ON and OFF directions. |
+  * [[:en-us_commands:reference:ibounceon|IbounceOn()]] — Applies the time filter only when the input changes from OFF to ON.
-| ''IbounceOn(pin, ms)'' | Pin number, stable time (ms) | Filtered state | Delays only the OFF→ON transition. |
+  * [[:en-us_commands:reference:ibounceoff|IbounceOff()]] — Applies the time filter only when the input changes from ON to OFF.
-| ''IbounceOff(pin, ms)'' | Pin number, stable time (ms) | Filtered state | Delays only the ON→OFF transition. |
-<code cpp>
+[[:en-us_commands:builtin|← Built-in function list]]
-void loop() {
-  bool button = Ibounce(0, 30);
-  digitalWrite(64, button);
-}
-</code>
-===== Command Prototypes =====
-^ Return Type ^ Command Prototype ^
-| ''bool'' | ''Ibounce(uint8_t pin, uint32_t debounceTime)'' |
-| ''bool'' | ''IbounceOn(uint8_t pin, uint32_t debounceTime)'' |
-| ''bool'' | ''IbounceOff(uint8_t pin, uint32_t debounceTime)'' |
-| ''bool'' | ''IdigitalRead(uint8_t pin, uint8_t samples)'' |
-The ''Ibounce'' functions retain state, so keep calling them in ''loop()''. Specify the actual pin or logical channel for your product.
-[[:en-us_commands:builtin|← Built-in Command List]]