优化433MHZ中继转发

433MHZ/rc-switch-pico/examples/Receive/CMakeLists.txt

@@ -0,0 +1,31 @@
+add_executable(receive
+        Receive.cc
+        ../../radio-switch.cc
+        )
+
+
+add_compile_options(-Wall
+-Wno-format          # int != int32_t as far as the compiler is concerned because gcc has int32_t as long int
+-Wno-unused-function # we have some for the docs that aren't called
+-Wno-maybe-uninitialized
+)
+
+# Pull in our pico_stdlib which pulls in commonly used features
+
+target_link_libraries(receive
+pico_stdlib
+hardware_adc
+pico_multicore)
+
+# enable usb output, disable uart output
+pico_enable_stdio_usb(receive 1)
+pico_enable_stdio_uart(receive 0)
+
+# create map/bin/hex file etc.
+pico_add_extra_outputs(receive)
+
+
+
+
+
+

433MHZ/rc-switch-pico/examples/Receive/Receive.cc

@@ -0,0 +1,156 @@
+#include <iostream>
+#include "pico/stdlib.h"
+#include "../../radio-switch.h"
+#include "pico/stdio.h"
+#include "pico/multicore.h"
+#include <map>                  // map
+#include <time.h>
+
+
+#define BUFFER_SIZ 1024
+
+
+//const uint RADIO_TRANSMIT_PIN = 16; // 433发射模块引脚
+const uint RADIO_RECEIVER_PIN = 17; // 433接收模块引脚
+
+
+// 闪烁LED
+void light()
+{
+    const uint LED_PIN = PICO_DEFAULT_LED_PIN;
+    gpio_init(LED_PIN);
+    gpio_set_dir(LED_PIN, GPIO_OUT);
+    gpio_put(LED_PIN, 1);
+    sleep_ms(100);
+    gpio_put(LED_PIN, 0);
+    sleep_ms(100);
+
+}
+
+int int_string(int val, char *string, int string_len, int *str_len, char *dest, int *dest_len)
+{
+    memset(string, 0, string_len);
+    memset(dest, 0, string_len);
+
+    char s[] = "55";
+    char d = '1';
+
+    snprintf(string, string_len, "%d", val);
+    *str_len = strlen(string);
+
+    if (0 == strncasecmp(string, s, 2)) {
+        dest[0] = d;
+        dest[1] = d;
+        strncpy(dest + 2, string + 2, (*str_len) - 2);
+
+        *dest_len = strlen(dest);
+    }
+
+    return 0;
+}
+
+// 核心0发送数据到核心1, 核心1判断是否有数据到来, 然后打印.
+void core1_main()
+{
+    
+    gpio_init(RADIO_RECEIVER_PIN);
+
+    RCSwitch rcSwitch = RCSwitch();
+    rcSwitch.enableReceive(RADIO_RECEIVER_PIN);
+
+    const char s = '1';
+    uint32_t val = 0;
+    int str_len;
+    int dest_len;
+    char str[270];
+    char dest[270];
+
+
+    while (true)
+    {
+        if (rcSwitch.available())
+        {
+            light();
+
+            val = rcSwitch.getReceivedValue();
+            
+            int_string(val, str, 270, &str_len, dest, &dest_len);
+
+
+            if (val != 0) {
+                if (str[0] == s && str[1] == s) {
+
+                    multicore_fifo_push_blocking(atoi(dest));
+                } else {
+                    rcSwitch.resetAvailable();
+                    val = 0;
+                    continue;
+                }
+
+            }
+
+            rcSwitch.resetAvailable();
+            val = 0;
+        }
+
+
+        sleep_ms(130);
+
+    }
+
+    return;
+}
+
+int main()
+{
+    stdio_init_all();
+    
+    std::map < int, int >idcode;
+    int count=0;
+    uint32_t i=0;
+    
+    
+    multicore_reset_core1();
+    multicore_launch_core1(core1_main);
+    
+
+
+    while (1)
+    {
+        if (multicore_fifo_rvalid()) {
+            i = multicore_fifo_pop_blocking();         // 读取核心1发送来的数据
+
+            idcode.insert( {                           // 插入map
+                          i, i}
+            );
+            
+        }
+        
+        if (idcode.size() >= 3) {                       // 等于3个时发送
+            for (auto it: idcode) {
+                printf("核心0接收433MHZ %u\n", it.first);
+            }
+
+            idcode.clear();
+        }
+        else                                            // 一直没有3个时候, 过一段时间发送
+        {
+            count++;                                    // 计数
+            
+            if (count == 600)                           // 60秒
+            {
+                for (auto it: idcode) {
+                    printf("核心0接收433MHZ %u\n", it.first);
+                }
+
+                idcode.clear();
+                count = 0;
+            }
+        }
+
+        sleep_ms(100);
+    }
+
+
+    return 0;
+}