Makerpad_Pro_Software

MakerPad Pro is an ESP32-powered SmartScreen Hub with a 3.5-inch touchscreen display offering vivid visuals and a 2 MP camera for image related applications. Ideal for IoT projects and creative DIY electronics.

This GitHub provides getting started guides for Makerpad Pro.

Features :

• ESP32-WROVER-B module which generic Wi-Fi + Bluetooth® + Bluetooth LE MCU modules that target a wide variety of applications
• Camera for photography related applications
• Capacitive Touch Display 3.5” for user interaction
• Onboard micro SD card storage support for Data logging
• Buzzer for adding audio alert for project
• Type C interface for programming/power
• GPIO pins breakout for interfacing additional peripherals if camera not used
• Boot and Reset Button
• Open source LVGL is supported for designing rich GUI for embedded applications.

Specifications :

• ESP32-WROVER-B contains low-power Xtensa® 32-bit LX6 microprocessors, 448 KB of ROM and 520 KB of on-chip SRAM, with 8MB flash and 8MB PSRAM
• WiFi protocols 802.11 b/g/n and Bluetooth v4.2 BR/EDR and Bluetooth LE
• OV2640 camera built-in having 2M pixel with lens 1/4"
• Camera Pixel Size 2.2 µm x 2.2 µm
• Camera Supports image sizes: UXGA, SXGA, SVGA, and any size scaling down from SXGA to 40x30
• Display Resolution is 320x480 pixel
• TFT LCD driver is ILI9488
• FT6236 Series capacitive touch panel controller IC
• Board Supply voltage 5V
• Operating voltage of GPIO pins 3.3V
• Operating Temperature: -30°C to 70°C
• Stable Image : 0°C to 50°C

Pinouts :

• (1) Camera
• (2) 3.5” Touch Display
• (3) Reset Button
• (4) Boot Button
• (5) Power Status LED
• (6) Type C
• (7) TF card slot
• (8) GPIOs breakout*
• (9) Buzzer
• (10) ESP32-WROVER-B module

*Note: Use only camera or breakout GPIOs pin at a time.

Interfacing Details :

• Camera (OV2640) interfacing with ESP32

  ESP32	Camera	Function
  IO5	D0/Y2	Data Pin, for transferring image data from the camera to the ESP32
  IO18	D1/Y3	Data Pin
  IO19	D2/Y4	Data Pin
  IO21	D3/Y5	Data Pin
  IO36	D4/Y6	Data Pin
  IO39	D5/Y7	Data Pin
  IO34	D6/Y8	Data Pin
  IO35	D7/Y9	Data Pin
  IO32	XCLK	External Clock, for synchronizing data transfer
  IO22	PCLK	Pixel Clock, signals the start of each pixel's data
  IO25	VSYNC	Vertical Synchronization, marks the beginning of a new frame or image
  IO23	HREF	Horizontal Reference, indicates the start of a new line or row of pixels
  IO26	SSCB_SDA	Serial Data line for I2C bus communication, for camera configuration and control
  IO27	SSCB_SCL	Serial Clock line for I2C bus communication
  -	PWDN	Power-Down Pin
  -	RESET	Reset pin, connected to ESP reset pin

• SDcard interfacing with ESP32

  ESP32	Display	Function
  IO14	CLK	SPI Clock pin for SDcard
  IO13	MOSI	MOSI (Master OUT Slave IN) pin of SPI interface for SDcard
  IO12	MISO	MISO (Master IN Slave OUT) pin of SPI interface for SDcard
  IO4	CS	SPI Chip Select pin for SDcard

• Display (ILI9488) interfacing with ESP32

  ESP32	Display	Function
  IO14	CLK	SPI Clock pin for Display
  IO13	MOSI	MOSI (Master OUT Slave IN) pin of SPI interface for Display
  IO12	MISO	MISO (Master IN Slave OUT) pin of SPI interface for Display
  IO15	CS	SPI Chip Select pin for Display
  IO26	RST	Display Reset pin
  IO33	D/C	Data/Command pin of Display
  -	BL	Direct supply to Backlight of display

• ESP32 and Touch (FT6236) controller interfacing

  ESP32	FT6236 Touch	Function
  IO26	SDA	Serial Data pin of I2C communication
  IO27	SCL	Serial Clock of I2C communication

• Buttons and Buzzer Interfacing with ESP32

  ESP32	Hardware	Function
  IO2	Buzzer	HIGH - Turn ON, LOW - Turn OFF
  IO0	BOOT	Boot button

• GPIOs Breakout Pins

  

  Breakout Pins	Function
  3V3	3.3V Positive Supply
  GND	Ground Supply Pin
  5V	5V Positive Supply
  IO5	GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
  IO18	GPIO18, VSPICLK, HS1_DATA7
  IO19	GPIO19, VSPIQ, U0CTS, EMAC_TXD0
  IO21	GPIO21, VSPIHD, EMAC_TX_EN
  IO23	GPIO23, VSPID, HS1_STROBE
  IO22	GPIO22, VSPIWP, U0RTS, EMAC_TXD1
  IO34	GPIO34, ADC1_CH6, RTC_GPIO4

  NOTE: GPIO breakout pins are shared with the Camera, so only use one at a time.

1. Configure and Setup Development Environment

• Download Arduino IDE from official site and install into your system. We have use Arduino IDE 1.8.19

• Once installation done will add ESP32 board support into IDE, for this first you need to add below link into preference:

  https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
  

  Select File > Preference, and add link as show in below image,

• Now will install ESP32 based different boards as shown in below image, you may get new version option but select 1.0.5 version which is compatible for Makerpad Pro

  

• Once done, keeping default settings select the ESP32 WROVER Module with suitable com port (may be different in your case) as shown below,

  

2. Installing Libraries

• Download library zip file provided here in github.

• Extract and copy files inside Document > Arduino > Libraries folder. Make sure to restart Arduino IDE whenever you update or add any libraries.

  

• Above library folder contains two files TFT_eSPI and FT6236 with pre-configured settings for Makerpad Pro

• Along with this you will also have to install LovyanGFX Library version 0.3.8 into arduino, steps shown in below image:

  

• Make sure you have install above mentioned all libraries for successful compilation of demo examples code provided in GitHub for Makerpad Pro.

3. Testing First Code

• At this step you are all set to test codes, for easy getting started we have provided various demo example codes in github which you can download and try.

• Open one example code in Arduino and make sure you have selected correct board with suitable com port, click on upload button to transfer code on ESP32 of Makerpad Pro. Make sure to press Boot button to begin upload process (in terminal you see message -> Connecting....____ ) as shown in below image.

  

• Checkout other examples below and build your own custom program codes using those references.

Example Codes

• Example 1 : Simple Buzzer test code
• Example 2 : Display Object demo code working with TFT_eSPI graphics library.
• Example 3 : Click Photos Demo code to test camera, touch and SD card combine.
• Example 4 : Try out Simple Paint App on Makerpad Pro
• and Many more...

Now you are ready to try out your own codes, Happy Coding!

4. How to setup and use LVGL UI with Makerpad Pro

Follow below provided step by step guide to configure, develop and use LVGL UI on Makerpad Pro. To follow along instructions you can download and install Squareline Studio App.

Resources

• Schematic
• Hardware Files
• 3D Case File
• PCB 3D Step File
• Getting Started with ESP32 in Arduino
• ILI9488_display_driver Datasheet
• OV2640 Camera Datasheet
• ESP32-WROVER-B Datasheet
• Arduino IDE 1 overview

Related Products

• Touchsy - 3.2" Touch LCD Display Based on ESP32 MCU

  

• Touchsy - 3.2" Touch LCD Display Based on Pico W

  

• Touchsy - 3.2" Touch LCD Display Breakout Board

  

• Touchsy - 3.2" Touch LCD Display for Raspberry Pi

  

Product License

This is open source product. Kindly check LICENSE.md file for more information.

Please contact support@sb-components.co.uk for technical support.