Add support for TM1638 Led and Key component (#3340)

esphome/components/tm1638/switch/tm1638_switch_led.cpp

@@ -0,0 +1,20 @@
+#include "tm1638_switch_led.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace tm1638 {
+
+static const char *const TAG = "tm1638.led";
+
+void TM1638SwitchLed::write_state(bool state) {
+  tm1638_->set_led(led_, state);
+  publish_state(state);
+}
+
+void TM1638SwitchLed::dump_config() {
+  LOG_SWITCH("", "TM1638 LED", this);
+  ESP_LOGCONFIG(TAG, "  LED: %d", led_);
+}
+
+}  // namespace tm1638
+}  // namespace esphome