ESP32 Basics Quiz | OceanRemote Education

1 What processor does the ESP32 use?

A) Single-core 80MHz B) Dual-core 240MHz C) Quad-core 1GHz D) Single-core 160MHz

2 What is the voltage level of ESP32 GPIO pins?

A) 3.3V B) 5V C) 1.8V D) 12V

3 Which GPIO pins should be AVOIDED for sensors?

A) GPIO4, GPIO5 B) GPIO21, GPIO22 C) GPIO6-11 D) GPIO32, GPIO33

4 How much does an ESP32 typically cost?

A) $1-2 B) $5-10 C) $20-25 D) $50-60

5 What is the deep sleep current consumption of ESP32?

A) 100mA B) 10mA C) 1mA D) 2.5μA

6 Which pins are safe for I2C communication?

A) GPIO21 (SDA), GPIO22 (SCL) B) GPIO4, GPIO5 C) GPIO0, GPIO2 D) GPIO16, GPIO17

7 What resolution is the ESP32 ADC?

A) 8-bit B) 10-bit C) 12-bit D) 16-bit