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--- en-us_products:mpino_8a8r [2026/09/17 12:16] – external edit 127.0.0.1
+++ en-us_products:mpino_8a8r [2026/10/25 08:42] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== MPINO-8A8R ======
-MPINO-8A8R is a all-in-one industrial Arduino with 8 digital inputs and 8 relay outputs. A single PCB integrates 4 analog inputs, 6 PWM outputs, 2 isolated high-speed counter inputs, 4 interrupt inputs, and RS-232·RS-485·UART·I²C communication.
+MPINO-8A8R is an all-in-one industrial Arduino with 8 digital inputs and 8 relay outputs. A single PCB integrates 4 analog inputs, 6 PWM outputs, 2 isolated high-speed counter inputs, 4 interrupt inputs, and RS-232·RS-485·UART·I²C communication.
 Program the controller with Arduino IDE (Arduino C/C++) or MPINO STUDIO 2 (Arduino C/C++ & ladder logic).
@@ Line 17: / Line 17: @@
 |  Power  |  -  |  Supply voltage  | DC 12~24V (0.5A or more when using DC 24V)  |
 |  Digital inputs  |  8 points \\ (Solid-state, isolated)  |  I(22)~I(29)  | operating input voltage: DC 0~40V \\ HIGH detection voltage: DC 5V or higher \\ input resistance: 2.2kΩ \\ 8 points/1COM \\ NPN/PNP input support  |
-|  Relay outputs  |  8 points \\ (Mechanical contacts, isolated)  |  R(62)~R(69)  | operating connection voltage: DC 0~30V or AC 0~250V \\ maximum allowable output current: 5A/1 points \\ 2 points/1COM × 4 groups  |
+|  Relay outputs  |  8 points \\ (Mechanical contacts, isolated)  |  R(62)~R(69)  | operating connection voltage: DC 0~30V or AC 0~250V \\ maximum allowable output current: 5A/1 point \\ 2 points/1COM × 4 groups  |
-|  Analog inputs  |  4 points \\ (Non-isolated)  |  A(0)~A(3)  | Select DC 0~5V, DC 0~10V, DC 0~20mA or NTC 10kΩ(25℃) per channel \\ resolution: 10bit (0~1023) \\ Input resistance: 2kΩ(0~5V), 4kΩ(0~10V), 250Ω(current), 10kΩ pull-up(NTC)  |
+|  Analog inputs  |  4 points \\ (Non-isolated)  |  A(0)~A(3)  | Select DC 0~5V, DC 0~10V, DC 0~20mA or NTC 10kΩ(25℃) per channel \\ resolution: 10-bit (0~1023) \\ Input resistance: 2kΩ(0~5V), 4kΩ(0~10V), 250Ω(current), 10kΩ pull-up(NTC)  |
 |  High-speed counter inputs  |  2 points \\ (Solid-state, isolated)  |  TCNT1, TCNT5  | operating input voltage: DC 0~80V \\ HIGH detection voltage: DC 3V or higher \\ maximum input frequency: 5kHz \\ Use TIMER1·TIMER5  |
 |  Interrupt inputs  |  4 points \\ (Non-isolated)  |  PWM2(D2), PWM3(D3) \\ SDA(D20), SCL(D21)  | input voltage: DC 0~5V \\ HIGH detection voltage: DC 3V or higher \\ PWM2/PWM3: no pull-up or pull-down \\ SDA/SCL: built-in 4.7kΩ pull-up  |
@@ Line 157: / Line 157: @@
 </code>
+===== STATUS LED =====
+The MPINO-8A8R STATUS LED is an indicator mounted on the board. You can use it to show the operating state of your program.
+The STATUS LED is connected to digital pin D13. In a sketch, use ''LED_BUILTIN'' in place of D13. Set ''pinMode(LED_BUILTIN, OUTPUT)'' before controlling it. ''digitalWrite(LED_BUILTIN, HIGH)'' turns the LED on; ''digitalWrite(LED_BUILTIN, LOW)'' turns it off.
+**Note:** The STATUS LED is on the board and is separate from the external output terminals.
+==== Example · Blink the STATUS LED ====
+This example turns the STATUS LED on and off at 0.5-second intervals.
+<code cpp>
+void setup() {
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+void loop() {
+  digitalWrite(LED_BUILTIN, HIGH);  // LED on
+  delay(500);
+  digitalWrite(LED_BUILTIN, LOW);   // LED off
+  delay(500);
+}
+</code>
 ===== Relay outputs =====
@@ Line 162: / Line 187: @@
 [[:en-us_guide:wiring#relay_output_one_channel_check|See the one-channel relay-output check before wiring for the first time. →]]
 ^ Group ^ Terminal ^ Arduino Pin ^ Contact ratings ^ Terminals and Wiring Example ^
-| COM2 | R(62), R(63) | D62, D63 | AC 250V or DC 30V, Max. 5A/1 points |  {{:en-us_products:mpino-8a8r-relay-output.svg?558|MPINO-8A8R relay output terminals and load wiring}}  |
+| COM2 | R(62), R(63) | D62, D63 | AC 250V or DC 30V, Max. 5A/1 point |  {{:en-us_products:mpino-8a8r-relay-output.svg?558|MPINO-8A8R relay output terminals and load wiring}}  |
-| COM3 | R(64), R(65) | D64, D65 | AC 250V or DC 30V, Max. 5A/1 points | ::: |
+| COM3 | R(64), R(65) | D64, D65 | AC 250V or DC 30V, Max. 5A/1 point | ::: |
-| COM4 | R(66), R(67) | D66, D67 | AC 250V or DC 30V, Max. 5A/1 points | ::: |
+| COM4 | R(66), R(67) | D66, D67 | AC 250V or DC 30V, Max. 5A/1 point | ::: |
-| COM5 | R(68), R(69) | D68, D69 | AC 250V or DC 30V, Max. 5A/1 points | ::: |
+| COM5 | R(68), R(69) | D68, D69 | AC 250V or DC 30V, Max. 5A/1 point | ::: |
 Relay outputs are dry contacts that physically connect each COM terminal to its output terminal. Connect a separate load power supply.
@@ Line 516: / Line 541: @@
 | PWM6, PWM7, PWM8 | D6, D7, D8 | TIMER4 | ::: |
-PWM outputs use an 8bit duty value by default, with an output voltage of DC 0~5V. PWM2 and PWM3 share interrupt-input functions.
+PWM outputs use an 8-bit duty value by default, with an output voltage of DC 0~5V. PWM2 and PWM3 share interrupt-input functions.
 ==== Example program · PWM outputs ====
@@ Line 804: / Line 829: @@
 **Related built-in functions**
-=== Function example · LS Industrial Systems Cnet SLave: ICnetMem(), ICnetAdr(), ICnetInit(), ICnet() ===
+=== Function example · LS Industrial Systems Cnet Slave: ICnetMem(), ICnetAdr(), ICnetInit(), ICnet() ===
 **Function prototype**