Questions

Let's try to answer the following questions to review what we have learned in this chapter:

1. If you want to change an ESP-IDF project configuration value, which file do you need to edit?

   a) platformio.ini

   b) sdkconfig

   c) CMakeLists.txt

   d) main.c

2. When you need to measure temperature, which of these is not an option to use with ESP32?

   a) BME280

   b) TSL2561

   c) DHT22

   d) DHT11

3. Which of these is not an actuator?

   a) Motor

   b) Relay

   c) Button

   d) LED

4. Which of the following is not a serial communication method of communicating with a sensor?

   a) I2C

   b) SPI

   c) PWM

   d) GPIO

5. What are the signals to drive an I2C device?

   a) Data and clock

   b) A GPIO pin

   c) MOSI and MISO

   d) TX and RX