esp32-cam tft display factory

This ESP32-CAM Project covers how to use ESP32-CAM with a TFT display to show the picture captured by the cam. We have covered several times how to use ESP32-CAM in different projects and we have described how to use ESP32-CAM in Machine Learning projects. Even if we can use ESP32-CAM with a Web server to show pictures, in this post we want to cover how to show a picture on a TFT screen (ST7735). Therefore, we would like to visualize the picture taken by the ESP32-CAM directly on the display. In this case, we use an ST7735s display, anyway, you can select a different TFT if you like.

You should already know how to take a picture using an ESP32-CAM therefore we will focus on two aspects only:How to connect the ESP32-CAM to TFT display

This is the most interesting part because here we will show the picture taken by the ESP32-CAM on the TFT display. To do it, we will use the TJpg_Decoder library because it simplifies our work. First of all, we use a low-resolution such as 120×160 so that the picture fits in the TFT.

defining the scale and the callback method used to render the picture:bool tft_output(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t* bitmap){

At the end of this tutorial, you have learned how to use ESP32-CAM with TFT display. In this project we have integrated ESP32-CAM with ST7735 to show the image captured. We have build a simple camera machine using ESP32-CAM.

A beautiful 3.5” touchscreen display, based on ESP32-WROVER, with a built-in 2M pixel OV2640 camera, which makes it an ever perfect platform for your ESP32 projects.

Makerfabs ESP32 3.5” Touch with camera is absolutely open for makers, and besides, Makerfabs provide plenty of Demos to help the users on the usage. Have a try at this fantastic display in your next ESP32 project!~

● I"ve seen a lot of different artists making works using displays or cameras. For example, I saw many expressions such as changing the angle of looking at the camera, what effects it might have on the display, and repeating itself. So I was inspired by it and tried to regenerate the past!

● First, I designed Esp32_cam chemical and ESP32_board. It was designed using Egle and used 8pin-mode TFT display. And I designed the main body with Fusion360, and I designed the middle part of the bridge.

●The main body and center used PLA filaments, and the leg part used transparent acrylic. And we used 2.4 inch TFT and 3.2 inch TFT. And used brass sticks.

●PLA, ESP- MCU and acrylic were supported by Seoul Innovation FABLAB, brass, display and esp-CAM were purchased directly from the Korean site, Device Mart, and brass from the local store.

●Continue to save the image on SD card in Esp32_cam. Then, ESP32_board sends images from 60 seconds ago sequentially to the TFT display. The faster the speed is, the faster the video can be streamed, but the ESP32 module is too much. So, it was best to send one image per second to make it work so that it didn"t burn. Otherwise, I felt something burning on the ESP32-board.

●The initial design was to use more displays to express more time, but now it"s a prototype. So while it is true that further development is needed, I am personally satisfied that the function has been successful!

●Personally, I wanted to use this to show people what I looked like, what I was just a few seconds ago, and what I thought. And even if the person on the camera leaves, I hope people will think about the existence of the past through the continuous appearance of the past on the display! And I want another work to come out through the boards that I designed and made.

I had been thinking about how the ESSP32-CAM and TFT displays needed for the final project would network with each other and what sensors would be needed.

And I tried to accurately identify and design the real and detailed size of the TFT display that I would use. The board I was going to use was going to be four boards. At first, I tried to use the ESP12e board, but I decided to use two ESP32-S boards because there were many 32 boards related to TFT display and 32 related to camera.

The main materials for use are the plastic body made of 3D printing and the leg part using acrylic, and the main materials were riveted using brass. In case of TFT Display, it can be used with support from fab lab and purchase link is attached. I bought it from a Korean site.

The size of the display is limited, but in order to make the display"s role more visible, it is designed to minimize the size of the display as much as possible and to hide the boards.

The board was made into a power supply board capable of using 3.3V and 5V. For the two TFTs and CAMs, several jumpers were needed, and were designed to be supplied here. Con-Jack allowed 5V to be plugged in.

The code below is how to set up pins and libraries on TFT-espi. ESP32 has a variety of pins that can be connected to many SPIs and I2Cs. Several pins exist, such as VSPI and HSPI pin, but with speed differences. Connect the ESP32 board with the TFT to fit the pinout below.

//#define ILI9488_DRIVER // WARNING: Do not connect ILI9488 display SDO to MISO if other devices share the SPI bus (TFT SDO does NOT tristate when CS is high)

This code is a code that receives images sent by ESP-32 Board from ESP32-CAM via Wi-Fi and shows them in real time.That is, the code that allows the TFT to receive images of the camera.

However, the difference is that it uses the Espi_TFT Library. Using this library, you can set the display size and type according to the type of TFT, and use the library to make it available not only in ESP32 but also in ESP8266.

This code puts SD storage into the ESP32-CAM and transmits the image that the camera saw 60 seconds ago to the ESP32-Board. It is a code that continuously sends images 60 seconds or 1 minute ago. Speed sends one image per second. If you want to do it faster, I recommend using a different MCU. I tried one image per half a second and the MCU got hot... ...and the same code is for connecting Wi-Fi.

Any way you know of to see the video stream or stills via a TFT display on another ESP through web browser or otherwise? I’ve used ESPNow between ESP12’s or 32’s for display of thermal cam images but they’re much smaller. Avoids need for phone or laptop tied up….

I was looking for something like this for my recent project, Thanks! Great tutorial! But I think ESP32-CAM is “unofficial” combination of ESP32 with a camera. I think Espressif themselves released a dedicated “official” ESP32+camera board called ESP-EYE with their own “official” software library called ESP-WHO.

The ESP32-CAM should work fine being powered either with 3.3V through the 3.3V pin or 5V through the 5V pin. You’re probably not providing enough current.

Hi . I have an esp32-cam and i went throught all the process to program the board and everything was going fine . At the end i’ve got the message telling me the ip adress to connect my board so i did in my browser and i ‘ve got the viewer that appeared in the screen but but when i press start stream or get still i don’t have any image on the screen !

I’m sorry you’re facing that problem. I don’t know why that is happening. But you can try to download the example from our repository: https://github.com/RuiSantosdotme/arduino-esp32-CameraWebServer

Nice tutorial, everything worked. Could you please show us how we can broadcast the video stream to the internet (so that we can see the video from any computer)? Maybe using port forwarding of the ESP32-cam or using a dedicated service? It would also be great to have an example working offline to record the video on a SD card (I haven’t managed to do that). Thanks!

– Not enough power through USB source: Some ESP32-CAM boards required 5V power supply to work properly. We’ve tested all our examples with 3.3V and they worked fine. However, some of our readers reported that this issue was fixed when they power the ESP32-CAM with 5V.

– Since I had a second ESP32-CAM, I repeated the steps above, and the results were the same: first upload from the IDE succeeded, the next one failed with the error above.

Hello, thank you for posting this material, it is very explanatory. I would like to report a problem with the ESP32-CAM I’m using. The image was stuck and locked. So I switched the voltage to 5V and now it works fine. Thank you

We now have a troubleshooting guide with the most common problems and how to fix them: https://randomnerdtutorials.com/esp32-cam-troubleshooting-guide/

Hi guys. Thanks a lot for this tutorial. I’m using the esp32-cam without problems. The only question i have for you is: is there any way to rotate the image in 90º?

A bonus: Checking the schematics, I saw that it operates with 3.3v, so the 5v go to a LM1117-3.3v voltage regulator, and this 3.3v regulator is rated up to 15V input !!!. Long story short, I’ve cramped 4 AAA batteries (6v) and the ESP32-CAM inside a GoPro-like waterproof enclosure and VOILA !!!.. .it worked…