Merge pull request #2074 from ladyada/main

zzz

Author: TheKitty

Adafruit_ESP32_Arduino_Demos/ESP32_sleeptest/.esp32.test.only

@@ -0,0 +1,61 @@
+// SPDX-FileCopyrightText: 2022 Limor Fried for Adafruit Industries
+//
+// SPDX-License-Identifier: MIT
+
+#include <Adafruit_NeoPixel.h>
+
+#if defined(PIN_NEOPIXEL)
+  Adafruit_NeoPixel pixel(1, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
+#endif
+
+void setup() {
+  Serial.begin(115200);
+
+  // Turn on any internal power switches for TFT, NeoPixels, I2C, etc!
+  enableInternalPower();
+}
+
+void loop() {
+  LEDon();
+  delay(1000);
+  
+  disableInternalPower();
+  esp_sleep_enable_timer_wakeup(1000000); // 1 sec
+  esp_light_sleep_start();
+  // we'll wake from light sleep here
+
+  // wake up 1 second later and then go into deep sleep
+  esp_sleep_enable_timer_wakeup(1000000); // 1 sec
+  esp_deep_sleep_start(); 
+  // we never reach here
+}
+
+void LEDon() {
+#if defined(PIN_NEOPIXEL)
+  pixel.begin(); // INITIALIZE NeoPixel
+  pixel.setBrightness(20); // not so bright
+  pixel.setPixelColor(0, 0xFFFFFF);
+  pixel.show();
+#endif
+}
+
+void LEDoff() {
+#if defined(PIN_NEOPIXEL)
+  pixel.setPixelColor(0, 0x0);
+  pixel.show();
+#endif
+}
+
+void enableInternalPower() {
+#if defined(ARDUINO_ADAFRUIT_QTPY_ESP32_PICO)
+  pinMode(NEOPIXEL_POWER, OUTPUT);
+  digitalWrite(NEOPIXEL_POWER, HIGH);
+#endif
+}
+
+void disableInternalPower() {
+#if defined(ARDUINO_ADAFRUIT_QTPY_ESP32_PICO)
+  pinMode(NEOPIXEL_POWER, OUTPUT);
+  digitalWrite(NEOPIXEL_POWER, LOW);
+#endif
+}