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--- iothings:laboratoare:2022:lab2 [2022/10/13 16:19]
dan.tudose [Assignments]
+++ iothings:laboratoare:2022:lab2 [2022/10/13 17:00] (current)
dan.tudose
@@ Line 1: / Line 1: @@
-===== Sparrow ESP32 board bring-up & SPIFFS =====
+===== Lab 2: Sensors & SPIFFS =====
 In today's lab assignment we will bring up the sensors on the Sparrow ESP32 board and build a logger using the filesystem library and the board's internal Flash.
+=== Bringing up the sensors ===
+We'll learn how to get data from all the sensors on the board.
+== Light Sensor ==
+{{ :iothings:laboratoare:2022:f7e03b34cc8586c24828e06bdde40887.jpeg?150|}}
+The board has an on-board [[https://eu.mouser.com/datasheet/2/239/lite-on_lite-s-a0002515146-1-1749840.pdf | LTR308]] light sensor. It's connected to the ESP32 processor via a I2C bus. You will need to install a [[https://www.arduinolibraries.info/libraries/ltr308-library | driver library]] to get light intensity readings. Go to Sketch > Include Library > Manage Libraries and search for LTR308 and then click on the Install button.
+The library comes pre-loaded with an example, you can load it from File > Examples > LTR308 and it should print light intensity reading in the Serial Terminal.
+Use the Serial Plotter to graph different illumination levels.
+== BME680 Sensor ==
+{{ :iothings:laboratoare:2022:screenshot_2022-10-13_at_16.58.01.png?150|}}
+Next, you'll be bringing up the [[https://www.bosch-sensortec.com/products/environmental-sensors/gas-sensors/bme680/ | BME680]] sensor, which is a highly integrated temperature, pressure, humidity and gas sensor.
+Again, you will need to install a [[https://www.arduinolibraries.info/libraries/bme680 | sensor library]] that enables you to interface the sensor on I2C and get readings.
+Run the I2CDemo to get sensor readings and plot them in the Serial Plotter.
 === ESP32 Flash Memory ===