Wgranie zmian do repozytorium

releases/v1.4.1/src/Tool.cpp

@@ -0,0 +1,48 @@
+#include <Tool.h>
+
+static const char *TOOL = "tool";
+
+bool isI2CDevPresent(uint8_t address) {
+  Wire.beginTransmission(address);
+  uint8_t error = Wire.endTransmission();
+
+  if (error == 0) {
+    ESP_LOGI(TOOL, "I2C response from 0x%02X", address);
+    return true;
+  } else {
+    if (error == 4) {
+      ESP_LOGW(TOOL, "I2C unknown error at 0x%02X", address);
+    } else {
+      ESP_LOGI(TOOL, "No I2C device at 0x%02X", address);
+    }
+    return false;
+  }
+}
+
+void scanI2C() {
+  byte error, address;
+  int nDevices = 0;
+  ESP_LOGI(TOOL, "I2C start scan");
+  for (address = 1; address < 127; address++) {
+    Wire.beginTransmission(address);
+    error = Wire.endTransmission();
+
+    if (error == 0) {
+      char buf[32];
+      snprintf(buf, sizeof(buf), "I2C device: 0x%02X", address);
+      ESP_LOGI(TOOL, "%s", buf);
+      nDevices++;
+      Watchdog::feed(); 
+    }
+    else if (error == 4) {
+      ESP_LOGW(TOOL, "I2C error at address: 0x%02X", address);
+    }
+  }
+
+  if (nDevices == 0) {
+    ESP_LOGE(TOOL, "I2C no devices found");
+  } else {
+    ESP_LOGI(TOOL, "I2C scan finished. Found %d device(s)", nDevices);
+  }
+  Watchdog::feed(); 
+}