ESP32 TFT LCD with Camera(3.5'')
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Contents
Introduction
The ESP32 Touch Camera use ILI9488 screen, which comes with resistive or capacitive screens. Hava an OV2640 camera and SD card slot. It can be used as a webcam, an electronic album, or a digital camera. Support for Arduino and MicroPython.
Model: MAKT32
Features
- Integrated ESP32 Wrover 2.4G WiFi and Bluetooth
- Wi-Fi Protocols: 802.11b/g/n(802.11n up to 150Mbps),A-MPDU and A-MSDU aggregation and 0.4us guard interval support
- Wi-Fi Frequency range: 2.402GHz - 2.483Ghz
- Bluetooth Protocols: Bluetooth v4.2 BR/EDR and BLE specification
- Bluetooth Radio: NZIF receiver with-97 dBm sensitivity, Class-1/class-2 and class-3 transmitter, AFH
- Bluetooth Audio: CVSD and SBC
- Arduino Compatible: You can play it with Arduino IDE
- OV2640: A 1/4inch CMOS UXGA (1632*1232) image sensor manufactured by OmniVision
- OV2640 supports output images up to 2 million pixels
- LCD 3.5 inch Amorphous-TFT-LCD (Thin Film Transistor Liquid Crystal Display) for mobile-phone or handy electrical equipment
- LCD Driver: ILI9488
- LCD Resolution: 320*480
- NS2009: A 4-wire resistive touch screen control circuit with I2C interface, which contains A 12-bit resolution A/D converter
- FT6X36 Series ICs are single-chip capacitive touch panel controller IC with a built-in 16 bit enhanced Micro-controller unit (MCU)
- Power supply: 5V, Type-C USB
- Micro SD card slot on the board
Pin Definitions
Notice:
①IO34, IO35, IO36, IO39 input only.
②GPIO12 is internally pulled high in the module and is not recommended for use as a touch pin.
Usage
Warning: Don't operate when in power supply on
Github:Makepython-ESP32
Software setup
1.Install the ESP32 boards supporting
- Note After Arduino IDE installed, there is no package to support ESP32, we need to install the ESP32 package in Arduino IDE to continue.
- Select “File>Preferences>settings>Additional Boards Manager URLs” to fill the link: [1]
- Click “Tools>Board>Boards Manager” to search for and install the ESP32 library:
2.Select and setting the parameter in the Tools menu, as the picture
3.Install Adafruit GFX library
Click “Tools> Manager Libraries” to search for and install Adafruit GFX library.
Draw on LCD
1. You can get the code from here: Core
2. Open the file “\Project_Touch-Screen-Camera-master\touch_draw_v2\touch_draw_v2.ino”. Select the screen type used and comment out the ones that are not used.
Connect MakePython ESP32 to your computer through an USB cable, follow the steps:
- Tools > Board and select the esp32:
- Go to Tools > Serial and select the com port your ESP is connected to(download the USB driver at: CP210x USB)
- Press the Connect button to establish a serial communication with your board.
MakePython ESP32 Projects
Project_1: Ultrasonic Ranging
We use the HC-SR04 Module at:
https://www.makerfabs.com/hc-sr04-ultrasonic-range-measurement-module.html
- Sensor Connection
- Connect the simple sensor to ESP32 boards as following:
| HC-SR04 Pins | MakePython ESP32 Pins |
| VCC | 5V |
| Trig | IO13 |
| Echo | IO12 |
| GND | GND |
Connect MakePython ESP32 to your computer through an USB cable.
- Download the ssd1306.py and hcsr04.py driver library from here：Code
- File > open and select the ssd1306.py and hcsr04.py
- Click on the right to DownloadAndRun
- Download the sample code: hc_sr04.py
- File > open and select the hc_sr04.py, then click DownloadAndRun
Show:
Project_2: Web Server Control LED
1.Connect LED
Connect the long LED pin to the end of the 330R resistor, the other end of the resistance is connected to 3.3v,the short pin of the LED lamp is connected to the IO5 of ESP32. As follows:
2.Connect WiFi
Click to download the Socket_LED.py file.
open the file and modify the 'SSID' and 'PASSWORD' to local WIF and password:
SSID = "Makerfabs" #Modify here with SSID PASSWORD = "20160704" #Modify here with PWD
After saving and clicking run, you can see network config, followed by the IP/netmask/gw/DNS address of the interface:
3.control LED
Enter the IP address printed from the serial port in any browser, with any computer in the same WIFI, to control the LED on/off:
When you click 'ON' with the mouse, the LED will turn on, and when you click off, the LED will turn off：
FAQ
You can list your questions here or contact with support@makerfabs.com for technology support.
