fix some error & add atoms3 4relay example

examples/Unit_4RELAY_M5Atom/Unit_4RELAY_M5Atom.ino

@@ -34,7 +34,7 @@
 UNIT_4RELAY relay;
 
 void setup() {
-    M5.begin();  // Init M5Atom.  初始化 M5Atom
+    M5.begin(true, false, false);  // Init M5Atom.  初始化 M5Atom
     Serial.print(relay.begin(&Wire, 26, 32));
     relay.Init(1);  // Set the lamp and relay to synchronous mode(Async =
                     // 0,Sync = 1).  将灯和继电器设为同步模式
@@ -45,10 +45,10 @@ void setup() {
 char count_i = 0;
 
 void loop() {
-    relay.relayAll(1);
-    delay(1000);
-    relay.relayAll(0);
-    delay(1000);
+    // relay.relayAll(1);
+    // delay(1000);
+    // relay.relayAll(0);
+    // delay(1000);
 
     if (M5.Btn.wasPressed()) {  // If button A is pressed.  如果按键A按下
         if ((count_i < 4)) {    // Control relays turn on/off in sequence.

examples/Unit_4RELAY_M5AtomS3/Unit_4RELAY_M5AtomS3.ino

@@ -0,0 +1,69 @@
+/*
+*******************************************************************************
+* Copyright (c) 2024 by M5Stack
+*                  Equipped with M5AtomS3 sample source code
+*                          配套  M5AtomS3 示例源代码
+* Visit for more information: https://docs.m5stack.com/en/unit/4relay
+* 获取更多资料请访问: https://docs.m5stack.com/zh_CN/unit/4relay
+*
+* Product: Unit 4RELAY.
+* Date: 2024/6/12
+*******************************************************************************
+  Please connect to port ,Control 4 relays and demonstrate the asynchronous
+  control relay LED 请连接端口，控制4继电器，并演示异步控制继电器LED
+-------------------------------------------------------------------------------
+  RELAY control reg           | 0x10
+  -----------------------------------------------------------------------------
+  Relay_ctrl_mode_reg[0]      | R/W | System control
+                              | 7 | 6 | 5 | 4 | 3 | 2 | 1 |     0     |
+                              | R | R | R | R | R | R | R | Sync Mode |
+                              | -Sync Mode:0 LED&Relay Async
+                              | -Sync Mode:1 LED&Relay Sync
+  ---------------------------------------------------------------------------------
+  Relay_ctrl_mode_reg[1]      | R/W | Relay & LED control
+                              |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0  |
+                              | LED1| LED2| LED3| LED4| RLY1| RLY2| RLY3| RLY4|
+-------------------------------------------------------------------------------*/
+// Note: The relay can only be controlled in synchronous mode, if the relay is
+// controlled in asynchronous mode, it will be invalid.
+// 注意:只能在同步模式下控制继电器,如果在异步模式下对继电器进行控制将无效,.
+
+#include "M5AtomS3.h"
+#include "Unit_4RELAY.h"
+
+UNIT_4RELAY relay;
+
+void setup() {
+    auto cfg = M5.config();
+    M5.begin(cfg);
+    M5.Lcd.setCursor(25, 2);
+    M5.Lcd.print("4-RELAY UNIT\n");
+    Serial.print(relay.begin(&Wire, 2, 1));
+    relay.Init(1);  // Set the lamp and relay to synchronous mode(Async =
+                    // 0,Sync = 1).  将灯和继电器设为同步模式
+    M5.Lcd.printf("  Please pressed Btn. \n");
+    relay.relayAll(0);
+}
+
+char count_i = 0;
+
+void loop() {
+    // relay.relayAll(1);
+    // delay(1000);
+    // relay.relayAll(0);
+    // delay(1000);
+
+    if (M5.BtnA.wasPressed()) {  // If button A is pressed.  如果按键A按下
+        if ((count_i < 4)) {     // Control relays turn on/off in sequence.
+                                 // 控制继电器依次接通/断开
+            Serial.printf("%d ON\n", count_i);
+            relay.relayWrite(count_i, 1);
+        } else if ((count_i >= 4)) {
+            Serial.printf("%d OFF\n", (count_i - 4));
+            relay.relayWrite((count_i - 4), 0);
+        }
+        count_i++;
+        if (count_i >= 8) count_i = 0;
+    }
+    M5.update();
+}

examples/Unit_4RELAY_M5Core2/Unit_4RELAY_M5Core2.ino

@@ -36,12 +36,13 @@ UNIT_4RELAY relay;
 void setup() {
     M5.begin(true, false, true, true);  // Init M5Core2 And the I2C port(21,22).
                                         // 初始化 M5Core2 和I2C(21,22)端口
-    M5.Lcd.setCursor(
-        80, 0, 4);  // Set the cursor position to (80,0). 将光标位置设置为(80,0)
+    M5.Lcd.setCursor(80, 0,
+                     4);  // Set the cursor position to (80,0). 将光标位置设置为(80,0)
     M5.Lcd.print("4-RELAY UNIT\n\n");
     M5.Lcd.print("   Relay State: \n   Sync Mode: ");
     M5.Lcd.setCursor(0, 220, 2);
     M5.Lcd.print("Independent switch  Sync/Async    ALL relay");
+    relay.begin();
     relay.Init(0);  // Set the lamp and relay to asynchronous mode(Async =
                     // 0,Sync = 1).  将灯和继电器设为非同步模式
 }
@@ -50,16 +51,15 @@ char count_i   = 0;
 bool sync_flag = 0, all_flag = 0;
 
 void loop() {
-    M5.update();  // Check button down state.  检测按键按下状态
+    M5.update();                 // Check button down state.  检测按键按下状态
     if (M5.BtnA.wasPressed()) {  // If button A is pressed.  如果按键A按下
         M5.Lcd.fillRect(160, 50, 100, 20, BLACK);
         M5.Lcd.setCursor(160, 50, 4);
         if (count_i < 4) {
             M5.Lcd.printf("%d ON", count_i + 1);
             if (sync_flag) {
-                relay.relayWrite(
-                    count_i,
-                    1);  // Open the relay at Count_i.  打开count_i处的继电器
+                relay.relayWrite(count_i,
+                                 1);  // Open the relay at Count_i.  打开count_i处的继电器
             } else
                 relay.ledWrite(count_i,
                                1);  // Turn on count_I to get led lights.
@@ -71,9 +71,8 @@ void loop() {
                     (count_i - 4),
                     0);  // Close the relay at Count_i.  关闭count_i处的继电器
             } else
-                relay.ledWrite(
-                    (count_i - 4),
-                    0);  // Turn off the COUNt_I leds.  关闭count_i出得led灯
+                relay.ledWrite((count_i - 4),
+                               0);  // Turn off the COUNt_I leds.  关闭count_i出得led灯
         }
         count_i++;
         if (count_i >= 8) count_i = 0;