Build a Portable Electronic Photo Album with ESP32

If you don’t want to miss my updates, remember to check the public account in the upper right corner and set it as a star, and send me a star.

This is a portable IoT display project, which can be developed into various practical tools based on it and the Arduino_GFX library. For example, WiFi signal analysis, electronic photo albums, etc. With a well-designed 3D printed case, it can be easily hung on a keychain or backpack for portability.

Materials List

TTGO T7 V1.0 (ESP32 WiFi Module) × 1
2-inch IPS LCD × 1
402035 Lipo Lithium Battery × 1
D-ring Carabiner Clip × 1

3D Printed Case

You can choose to download the 3D printing files at the end of the article to print the case.

You can also choose to download it directly from Thingiverse:https://www.thingiverse.com/thing:4564272

Soldering the Circuit

Refer to the LCD’s Datasheet to connect the pins. Be sure to read the Datasheet thoroughly before connecting, especially if the LCD model you ordered differs from the one here.

ESP32   -&gt; LCD
GND     -&gt; Pin  1 GND
        -&gt; Pin  2 LED K
3v3.    -&gt; Pin  4 Vcc -&gt; 20 Ohm -&gt; Pin 3 LEDA
GPIO 27 -&gt; Pin  7 D/C
GPIO  5 -&gt; Pin  8 CS
GPIO 18 -&gt; Pin  9 SCK
GPIO 23 -&gt; Pin 10 MOSI
GPIO 33 -&gt; Pin 11 RST

Assembly

Seal the soldered parts and exposed pins with tape.

Assemble the module and case according to the video below.

Programming

Arduino IDE

If you haven’t installed the Arduino IDE before, you need to download and install it:https://www.arduino.cc/en/main/software

ESP32 Support

Follow the instructions in the link below to install ESP32 support:https://github.com/espressif/arduino-esp32

Arduino_GFX Library

Download the latest version of the Arduino_GFX library: (“Clone or Download” -> “Download ZIP”)https://github.com/moononournation/Arduino_GFX

Import this library in the Arduino IDE. (Arduino IDE “Sketch” Menu -> “Include Library” -> “Add .ZIP Library” -> select the downloaded zip file)

Compile and Upload

Connect to the computer with a USB cable and open the Arduino IDE.
Open the ESPWiFiAnalyzer example code (“File” -> “Example” -> “Arduino_GFX” -> “ESPWiFiAnalyzer”)
Click the Arduino IDE “Upload” button.
The ESPWiFiAnalyzer.ino code file is also available for download at the end of the article.

Conclusion

This 2-inch IoT display can be used not only for WiFi signal detection analysis, but the ESP32 also has many more possibilities. It’s time to unleash your imagination to make it more fun!

Original link: https://www.instructables.com/Portable-IoT-Display/

Original author: Chen Liang

Translated first published on: Fun Endless

Editor: DF Maker Community

END

Recommended Reading:

Project Sharing | Competition Series | Artificial Intelligence | Postgraduate Entrance Exam

Must-Know Knowledge Points | Graduation Project | Switch Power Supply | Job Hunting

We are NiMo, the founder of Darwin, who only talks about technology and not flirting. Darwin is an online education platform aimed at serving professionals in the electronics industry, providing skill training videos covering popular topics in various subfields, such as embedded systems, FPGA, artificial intelligence, etc. We tailor layered learning content for different groups, such as commonly used knowledge points, breakdown assessments, competition/robotics/postgraduate entrance exams, etc. Welcome to follow us.

Official website: www.darwinlearns.com

Bilibili: Darwin

QQ Group: Group 1: 786258064 (full)

Group 2: 1057755357 (full)

Group 3: 871373286 Build a Portable Electronic Photo Album with ESP32