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Merge pull request #3051 from FoamyGuy/deepsleep_bme280_aio
feather s2 bme280 deepsleep aio example
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‎Adafruit_Feather_ESP32-S2/Arduino_BME280_DeepSleep_AdafruitIO/.feather_esp32s2.test.only

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‎Adafruit_Feather_ESP32-S2/Arduino_BME280_DeepSleep_AdafruitIO/Arduino_BME280_DeepSleep_AdafruitIO.ino

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// SPDX-FileCopyrightText: 2025 Limor Fried for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#include "config.h"
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#include <Adafruit_BME280.h>
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#include <Adafruit_NeoPixel.h>
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Adafruit_BME280 bme; // I2C
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AdafruitIO_Feed *temperature = io.feed("temperature");
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AdafruitIO_Feed *humidity = io.feed("humidity");
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AdafruitIO_Feed *pressure = io.feed("pressure");
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float temp, humid, pres;
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Adafruit_NeoPixel pixel(1, PIN_NEOPIXEL, NEO_GRB + NEO_KHZ800);
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void setup() {
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Serial.begin(115200);
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, HIGH);
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// wait for serial monitor to open
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//while(! Serial);
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// turn on neopixel
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pinMode(NEOPIXEL_POWER, OUTPUT);
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digitalWrite(NEOPIXEL_POWER, HIGH);
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pixel.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
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pixel.setBrightness(10); // not so bright
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pixel.setPixelColor(0, 0xFF0000); // red
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pixel.show();
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if (! bme.begin()) {
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Serial.println("Could not find a valid BME280 sensor, check wiring, address, sensor ID!");
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deepSleep();
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}
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Serial.println("Found BME280");
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float temp = bme.readTemperature();
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float pres = bme.readPressure() / 100.0F;
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float hum = bme.readHumidity();
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// shhh time to close your eyes
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bme.setSampling(Adafruit_BME280::MODE_SLEEP,
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Adafruit_BME280::SAMPLING_X16, Adafruit_BME280::SAMPLING_X16, Adafruit_BME280::SAMPLING_X16,
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Adafruit_BME280::FILTER_OFF,
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Adafruit_BME280::STANDBY_MS_1000);
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Serial.print("Connecting to Adafruit IO");
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pixel.setPixelColor(0, 0xFFFF00); // yellow
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pixel.show();
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// connect to io.adafruit.com
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io.connect();
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// wait for a connection
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while(io.status() < AIO_CONNECTED) {
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Serial.print(".");
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delay(100);
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}
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// we are connected
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pixel.setPixelColor(0, 0x00FF00); // green
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pixel.show();
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Serial.println();
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Serial.println(io.statusText());
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io.run();
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temp = temp * 9.0 / 5.0 + 32;
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Serial.print("Temperature = ");
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Serial.print(temp);
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Serial.println(" *F");
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temperature->save(temp);
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Serial.print("Pressure = ");
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Serial.print(pres);
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Serial.println(" hPa");
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pressure->save(pres);
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Serial.print("Humidity = ");
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Serial.print(hum);
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Serial.println(" %");
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humidity->save(hum);
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Serial.println();
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deepSleep();
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}
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void loop() {
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// we never get here!
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}
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void deepSleep() {
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pinMode(NEOPIXEL_POWER, OUTPUT);
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digitalWrite(NEOPIXEL_POWER, LOW); // off
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, LOW);
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esp_sleep_enable_timer_wakeup(300000000); // 5 minutes
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esp_deep_sleep_start();
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}

‎Adafruit_Feather_ESP32-S2/Arduino_BME280_DeepSleep_AdafruitIO/config.h

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// SPDX-FileCopyrightText: 2025 Limor Fried for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#define IO_USERNAME "your-aio-username"
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#define IO_KEY "your-aio-token"
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#define WIFI_SSID "your-wifi-ssid"
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#define WIFI_PASS "your-wifi-pass"
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#include "AdafruitIO_WiFi.h"
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AdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);

‎Adafruit_Feather_ESP32-S2/CircuitPython_BME280_DeepSleep_AdafruitIO/code.py

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# SPDX-FileCopyrightText: Copyright (c) 2025 Tim Cocks for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""
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CircuitPython example for deep sleep and BME280 sensor sending data
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to Adafruit IO.
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"""
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from os import getenv
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import time
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import alarm
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import board
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import digitalio
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import neopixel
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import wifi
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from adafruit_bme280 import advanced as adafruit_bme280
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import adafruit_connection_manager
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import adafruit_requests
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from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
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# enable power to NeoPixels.
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np_power = digitalio.DigitalInOut(board.NEOPIXEL_POWER)
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np_power.switch_to_output(value=True)
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# standard LED
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builtin_led = digitalio.DigitalInOut(board.LED)
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builtin_led.switch_to_output(value=True)
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# neopixel to use for status
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status_pixel = neopixel.NeoPixel(
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board.NEOPIXEL, 1, brightness=0.1, pixel_order=neopixel.GRB, auto_write=True
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)
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status_pixel[0] = 0xFF0000
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# Create sensor object, using the board's default I2C bus.
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i2c = board.I2C() # uses board.SCL and board.SDA
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bme280 = adafruit_bme280.Adafruit_BME280_I2C(i2c)
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print("Found BME280")
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# change this to match the location's pressure (hPa) at sea level
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bme280.sea_level_pressure = 1013.25
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# temperature converted to F
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temperature = bme280.temperature * 9 / 5 + 32
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humidity = bme280.relative_humidity
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pressure = bme280.pressure
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print("\nTemperature: %0.1f F" % temperature)
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print("Humidity: %0.1f %%" % humidity)
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print("Pressure: %0.1f hPa" % pressure)
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bme280.mode = adafruit_bme280.MODE_SLEEP
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bme280.overscan_temperature = adafruit_bme280.OVERSCAN_X16
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bme280.overscan_humidity = adafruit_bme280.OVERSCAN_X16
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bme280.overscan_pressure = adafruit_bme280.OVERSCAN_X16
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bme280.iir_filter = adafruit_bme280.IIR_FILTER_DISABLE
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bme280.standby_period = adafruit_bme280.STANDBY_TC_1000
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# set status pixel to yellow
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status_pixel[0] = 0xFFFF00
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print("Connecting to AdafruitIO")
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# Get WiFi details and Adafruit IO keys, ensure these are setup in settings.toml
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# (visit io.adafruit.com if you need to create an account, or if you need your Adafruit IO key.)
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ssid = getenv("WIFI_SSID")
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password = getenv("WIFI_PASSWORD")
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aio_username = getenv("ADAFRUIT_AIO_USERNAME")
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aio_key = getenv("ADAFRUIT_AIO_KEY")
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print("Connecting to %s" % ssid)
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wifi.radio.connect(ssid, password)
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print("Connected to %s!" % ssid)
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# setup socket pool and requests session
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pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
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ssl_context = adafruit_connection_manager.get_radio_ssl_context(wifi.radio)
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requests = adafruit_requests.Session(pool, ssl_context)
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# Initialize an Adafruit IO HTTP API object
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io = IO_HTTP(aio_username, aio_key, requests)
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# set status pixel to green
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status_pixel[0] = 0x00FF00
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try:
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# Get the feeds from Adafruit IO
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temperature_feed = io.get_feed("temperature")
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humidity_feed = io.get_feed("humidity")
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pressure_feed = io.get_feed("pressure")
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# send data to the feeds
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io.send_data(temperature_feed["key"], temperature)
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io.send_data(humidity_feed["key"], humidity)
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io.send_data(pressure_feed["key"], pressure)
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except AdafruitIO_RequestError as e:
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print(e)
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print(
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"You must create feeds on AdafruitIO for: temperature, humidity, and pressure"
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)
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# turn off the neopixel and builtin LED
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np_power.value = False
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builtin_led.value = False
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# Create an alarm that will trigger 5 minutes from now.
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time_alarm = alarm.time.TimeAlarm(monotonic_time=time.monotonic() + (5 * 60))
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# Exit the program, and then deep sleep until the alarm wakes us.
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alarm.exit_and_deep_sleep_until_alarms(time_alarm)
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# Does not return, so we never get here.

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