Week 11. Input Devices

Group Assignment

probe an input device’s analog levels and digital signals

Group Assignment Link - Here

Individual Assignment

measure something: add a sensor to a microcontroller board that you have designed and read it

For this week we were assigned with two input device as one for our final project and other input device.So in my final project i am using ESP32-CAM as input device as our guru Rico and local Instructor Zina mention.

Now to connect my esp32 cam, i have used previous board to do programming.I connected ESP32-CAM to the 3pin header by referring this;

Unfortunately my board 3pin header was damaged so i tried to modify with soldering but i fail. So finally decided to re-print my board and done soldering to do programming with ESP32-CAM.

To do programming, firstly i have installed ESP32 Add-on in Arduino IDE by going to File >> Preference >> and add this link https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.jsonin URL and Click ok.

Open the Boards Manager. Go to Tools > Board > Boards Manager…

Search for ESP32 and press install button for the “ESP32 by Espressif Systems“:

Plug the ESP32-CAM board to your computer with your design board.

Select your Board in Tools > Board menu (in my case it’s the AI Thinker ESP32-CAM)

Select the Port (if you don’t see the COM Port in your Arduino IDE, you need to install).

Open the following example under File >> Examples >> ESP32 >> CameraWebServer.

A new sketch opens in your Arduino IDE:

Select your camera module and remove two "//" from the code.

Enter your WiFi credentials SSID and Password as given below; Remember that you need to use same wifi SSID and Password that you have connected to your laptop.

Now change the serial monitor as given in the code.

Now finally check all the settings and ports are connected as given below;

Then i click on verify and uploaded the code but Unfortunately i got some errors as given below;

So to verify this error i ask to my Fablab Engineer Mr. Kencho and I have done the wrong connection with my board. so i have reconnected my board with ESP32-CAM as follows:

GND - GND

VCC - 5V

UOR - TX

UOT - RX

GND - 100 (both connection in ESP32 CAM)

Then finally i connected all the connection and uploaded the code in Arduino. After uploading the code you have to press RST (Reset) button in ESP32-CAM.

Now go to serial monitor and agin press RST (reset) button in ESP32-CAM to connect wifi with IP address.

Then copy your wifi IP address and past it in your browser to access your camera as shown below.

ESP32-CAM Video

ESP32-CAM Code

Download