Application of massage chair STONE TFT LCD with ESP32

Hi Friends! Hope you're well today. I welcome you on board. In this post today, I'll walk you through the application of a massage chair STONE 10.1 inch STVC101WT-01 TFT LCD with ESP32. Let's get started.

Brief Introduction

Massage chair with modern mechanical technology to reproduce the traditional Chinese medicine meridian massage is an important daily health care equipment. The function of the massage chair is to integrate meridian massage of traditional Chinese medicine with modern high-tech means to help users enjoy a comfortable massage, reduce fatigue, and achieve the effect of health care and physical fitness. With the development of single-chip microcomputer intelligent control, a massage chair with a large screen control application is also added. What we need to do here is such an application, select different modes through STONE TFT LCD screen, realize the control of MCU through serial port communication, and then realize the speed and rotation time control of stepping motor by controlling the level of specific IO, to realize the massage function of head and back. The system uses a STONE TFT LCD serial port screen, which can be used to do touch display function. It is very convenient to develop. Only through the serial port can the MCU be controlled. It is used in the massage chair, which can easily realize the setting of a massage function and the adjustment of massage strength, to achieve the effect of self-cultivation and reduce fatigue.

Project Overview

Here we do is a home massage chair application, will STONE TFT After the LCD serial screen is powered on, a start interface will appear. After a short stay, it will jump to a specific interface. This interface is used to set our current time. When setting, a keyboard will pop up. After setting, click OK to enter the massage mode selection interface. Here, I have set three modes: head massage, back massage, and comprehensive mode. In the mode, the massage intensity can be set, the high, middle and low gears can be set, and the corresponding LED light will be used for intensity indication; the massage times can also be set, after reaching the set number, it will automatically stop; in the comprehensive mode, the head and back will be massaged at the same time, and it can be turned off when it is not needed. These actions are through the STONE TFT LCD serial port screen to achieve command transmission.  

The communication functions are as follows:

 

• ? The serial port screen of STONE TFT LCD realizes the function of button switching interface;
• ? The serial port screen of STONE TFT LCD realizes the function of an automatic jump when starting up;
• ? The serial port screen of STONE TFT LCD realizes time setting;
• ? The serial port screen of STONE TFT LCD realizes data variable distribution;
• ? STONE TFT LCD serial port screen realizes serial command communication.
• ? STONE TFT LCD serial port screen realizes the function of menu bar selection;

Modules required for the project:

• ? STONE TFT LCD;
• ? Arduino ESP32;
• ? Stepper motor drive and module;
• ? LED array module;

Block diagram:

Hardware introduction and principle

STVC101WT-01

• 10.1 inch 1024x600 industrial grade TFT panel and 4-wire resistance touch screen;
• brightness is 300cd / m2, LED backlight;
• RGB color is 65K;
• visual area is 222.7mm * 125.3mm;
• visual angle is 70 / 70 / 50 / 60;
• working life is 20000 hours. 32-bit cortex-m4 200Hz CPU;
• CPLD epm240 TFT-LCD controller;
• 128MB (or 1GB) flash memory;
• USB port (U disk) download;
• toolbox software for GUI design, simple and powerful hex instructions.

Basic functions

• Touch screen control / display image / display text / display curve / read and write data / play video and audio. It is suitable for various industries.
• UART interface is RS232 / RS485 / TTL;
• voltage is 6v-35v;
• power consumption is 3.0w;
• working temperature is - 20 ? / + 70 ?;
• air humidity is 60 ? 90%.

STVC101WT-01 TFT display module communicates with MCU through a serial port, which needs to be used in this project. We only need to add the designed UI picture through the upper computer through the menu bar options to buttons, text boxes, background pictures, and page logic, then generate the configuration file, and finally download it to the display screen to run. In addition to the data manual, there are user manuals, common development tools, drivers, some simple routine demos, video tutorials, and some for testing projects.

LED array module

Product features

This is a galloping lamp display module with 8 LEDs on board. The external voltage is 3-5.5vdc, and the corresponding LED can be lighted at a low level. It is especially suitable for the IO test of a single chip microcomputer to realize indicator control.

Electrical parameters

• Working voltage: 3 - 5.5VDC
• Working current: 24Ma (maximum)
• Effective level: low level
• Number of LEDs: 8
• Display color: red (D1 / D2 / D3 / D4 / D5 / D6 / D7 / D8)
• It is very suitable for MCU experiment and DIY

ESP32 EVB

Esp32 is a single-chip scheme integrated with 2.4 GHz WiFi and Bluetooth dual-mode. It adopts TSMC's ultra-low power consumption 40 nm technology, with ultra-high RF performance, stability, versatility, and reliability, as well as ultra-low power consumption, which meets different power consumption requirements and is suitable for various application scenarios. At present, the product models of esp32 series include esp32-d0wd-v3, esp32-d0wdq6-v3, esp32-d0wd, esp32-d0wdq6, esp32-d2wd, esp32-s0wd and esp32-u4wdh. Esp32-d0wd-v3, esp32-d0wdq6-v3 and esp32-u4wdh are chip models based on Eco v3.

Wi-Fi

• 802.11 b/g/n
• 802.11 n (2.4 GHz) up to 150 Mbps
• wireless multimedia (WMM)
• frame aggregation (TX / RX A-MPDU, Rx A-MSDU)
• immediate block ACK
• defragmentation
• beacon automatic monitoring (hardware TSF)
• 4x virtual Wi-Fi interface

Bluetooth

• Bluetooth v4.2 complete standard, including traditional Bluetooth (BR / EDR) and low power Bluetooth (BLE)
• supports standard class-1, class-2, and class-3 without external power amplifier
• enhanced power control

Output power up to +12 dBm

• nzif receiver has – 94 DBM ble reception sensitivity
• adaptive frequency hopping (AFH)
• standard HCI based on SDIO / SPI / UART interface
• high-speed UART HCI up to 4 Mbps

Support for Bluetooth 4.2 br / EDR and ble dual-mode controller

• synchronous connection-oriented/extended synchronous connection-oriented (SCO / ESCO)
• CVSD and SBC audio codec algorithms
• piconet and scatternet
• multi-device connection with traditional Bluetooth and low power Bluetooth
• support simultaneous broadcast and scanning

ULN2003 Stepper Motor

Product features

ULN2003 is a Darlington display with high voltage and high current. It consists of seven Silicon NPN Darlington tubes. Each pair of Darlington of ULN2003 is connected in series with a 2.7K base resistor. Under 5V working voltage, it can be directly connected with the TTL and CMOS circuit, which can directly process the data that needs a standard logic buffer. Here we use the DIP-16 package, 4-phase 5-wire 5V stepping motor.

Structure and Application

Development steps

Arduino ESP32

Download IDE To complete the code development of esp32, Arduino is used to developing and compiling. First, you need to install the environment and enter the Arduino official website: https://www.arduino.cc/en/Main/Software, and download the version for your platform.

Install Arduino

Double click automatic installation. It should be noted here that Arduino ide relies on the Java development environment and requires PC to install Java JDK and configure variables. If double-click fails to start, it may be that the PC does not have JDK support.

Code

• HeadGearHigh is used to set the gear to high in receive head mode
• HeadGearMiddle is used to set the gear to middle in receive head mode
• HeadGearLow is used to set the gear to low in receive head mode
• HeadTiming is used to receive the number of times set in head mode
• HeadModeStart is used to start in receive header mode
• HeadModeStop is used to stop in receive header mode
• BackGearHigh is used to set the gear to high in receive back mode
• BackGearMiddle is used to set the gear to middle in receive back mode
• BackGearLow is used to set the gear to low in receive back mode
• BackModeStart is used to start in receive back mode
• BackModeStop is used to stop in receive back mode
• IntegratedModeStart is used to receive a start in integrated mode
• IntegratedModeStop is used to receive stop in integrated mode

After the code is written, we start to compile. After the compilation is successful, download the code to the esp32 EVB board. The operation is as follows:

STONE TOOL 2019

New Project

Find the tool 2019 directory and double-click to open STONE Tool 2019 Click new project and make changes to the resolution, project name, and save path. Then set the boot page, and set the communication packet header: By default, there is a blue back image after a new project is created. Right-click 0.jpg and select remove to delete it. In the same way, select Add to add the image required by the project.

The setting of a selection interface

RTC

To set the time function, first add a clock setting control. Add an RTC control. To make input keyboard, we need to add a button control to each array and give the corresponding key value.

Menu bar selection

Add the menu bar control, set the initial value, and add the corresponding ICO library.

Page jump function

You can set the button effect and the switch page, and the switching interface effect of other buttons is also similar.

Key command setting

Each button needs to be given corresponding action, so the following settings are made: //HEAD uint8_t   HeadGearHigh[9]       = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x03}; uint8_t   HeadGearMiddle[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x02}; uint8_t   HeadGearLow[9]        = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x01}; uint8_t   HeadTiming[9]         = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x11, 0x01, 0x00, 0x09}; uint8_t   HeadModeStart[9]    = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x19, 0x01, 0x41, 0x61}; uint8_t   HeadModeStop[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x24, 0x01, 0x46, 0x66};   //BACK uint8_t   BackGearHigh[9]       = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x01}; uint8_t   BackGearMiddle[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x02}; uint8_t   BackGearLow[9]      = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x03};   uint8_t   BackModeStart[9]      = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0C, 0x01, 0x42, 0x62}; uint8_t   BackModeStop[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0D, 0x01, 0x43, 0x63};   //Integrated uint8_t   IntegratedModeStart[9]= {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0F, 0x01, 0x44, 0x64}; uint8_t   IntegratedModeStop[9] = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1F, 0x01, 0x45, 0x65};  

Connection

Code

/* Stepper Motor Control - one revolution This program drives a unipolar or bipolar stepper motor. The motor is attached to digital pins 8 - 11 of the Arduino. The motor should revolve one revolution in one direction, then one revolution in the other direction. Created 11 Mar. 2007 Modified 30 Nov. 2009 by Tom Igoe */ //#include <Stepper.h> #include "stdlib.h" #include <AccelStepper.h> const float STEPCYCLE = 2050;//A Cycle by Step is 2050; //  myStepper.setSpeed(100);//5V, it can be set up to 180 const float TheMaxSpeed = 1000.0;  // change this to fit the number of steps per revolution const float headspeed_str[4] = { 0, TheMaxSpeed / 4, TheMaxSpeed / 2, TheMaxSpeed, }; const float backspeed_str[4] = { 0, TheMaxSpeed, TheMaxSpeed / 2, TheMaxSpeed / 4, }; // for your motor // initialize the stepper library on pins 8 through 11: AccelStepper HeadStepper(AccelStepper::FULL4WIRE, 15, 0, 2, 4);//The middle two IO are reversed AccelStepper BackStepper(AccelStepper::FULL4WIRE, 16, 5, 17, 18);//The middle two IO are reversed const int ledPin_1 =  14;      // the number of the LED pin const int ledPin_2 =  27;      // the number of the LED pin const int ledPin_3 =  26;      // the number of the LED pin const int ledPin_4 =  25;      // the number of the LED pin const int ledPin_5 =  33;      // the number of the LED pin const int ledPin_6 =  21;      // the number of the LED pin const int ledPin_7 =  22;      // the number of the LED pin const int ledPin_8 =  23;      // the number of the LED pin //buf uint8_t   cout_i = 0; uint8_t   RecievedTemp[9]       = {0}; float     settingbuf[2]       = {TheMaxSpeed, 0}; float   MorenCycle      = 100; //HEAD uint8_t   HeadGearHigh[9]       = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x03}; uint8_t   HeadGearMiddle[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x02}; uint8_t   HeadGearLow[9]        = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0E, 0x01, 0x00, 0x01}; uint8_t   HeadTiming[9]         = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x11, 0x01, 0x00, 0x09}; uint8_t   HeadModeStart[9]    = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x19, 0x01, 0x41, 0x61}; uint8_t   HeadModeStop[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x24, 0x01, 0x46, 0x66}; //BACK uint8_t   BackGearHigh[9]       = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x01}; uint8_t   BackGearMiddle[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x02}; uint8_t   BackGearLow[9]      = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1A, 0x01, 0x00, 0x03}; uint8_t   BackModeStart[9]      = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0C, 0x01, 0x42, 0x62}; uint8_t   BackModeStop[9]     = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0D, 0x01, 0x43, 0x63}; //Integrated uint8_t   IntegratedModeStart[9]= {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x0F, 0x01, 0x44, 0x64}; uint8_t   IntegratedModeStop[9] = {0xA5, 0x5A, 0x06, 0x83, 0x00, 0x1F, 0x01, 0x45, 0x65}; void setup() { //Serial port initialization Serial.begin(115200); //The motor starts running separately //  HeadStepper_Setting_Run(TheMaxSpeed, 5); //  BackStepper_Setting_Run(TheMaxSpeed, 5); // initialize the LED pin as an output: pinMode(ledPin_1, OUTPUT); pinMode(ledPin_2, OUTPUT); pinMode(ledPin_3, OUTPUT); pinMode(ledPin_4, OUTPUT); pinMode(ledPin_5, OUTPUT); pinMode(ledPin_6, OUTPUT); pinMode(ledPin_7, OUTPUT); pinMode(ledPin_8, OUTPUT); digitalWrite(ledPin_1, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, HIGH);  // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, HIGH);  // turn the LED on (HIGH is the voltage level) } void loop() { if(Serial.available() != 0) { for(cout_i = 0; cout_i < 9; cout_i ++) { RecievedTemp[cout_i] = Serial.read(); } //    if(HeadStepper.isRunning() == true) //    { //      HeadStepper.stop(); //    } //    if(BackStepper.isRunning() == true) //    { //      BackStepper.stop(); //    } //  else //  { //    Stepper2_Setting_Run(TheMaxSpeed, 5); //  } //  Serial.write(RecievedTemp, 9); switch(RecievedTemp[5]) { case 0x0E://head gear if(HeadStepper.isRunning() == true) { HeadStepper.stop(); } settingbuf[0] = headspeed_str[RecievedTemp[8]]; if(RecievedTemp[8] == 1) { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, HIGH);   // turn the LED on (HIGH is the voltage level) } else if(RecievedTemp[8] == 2) { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, HIGH);   // turn the LED on (HIGH is the voltage level) } else { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, LOW);   // turn the LED on (HIGH is the voltage level) } break; case 0x11://head timing if(HeadStepper.isRunning() == true) { HeadStepper.stop(); } settingbuf[1] = RecievedTemp[8]; break; case 0x19://head start if(settingbuf[1] == 0) { settingbuf[1] = 5; } break; case 0x24://head stop if(HeadStepper.isRunning() == true) { HeadStepper.stop(); } break;   case 0x1A://backgear if(BackStepper.isRunning() == true) { BackStepper.stop(); } settingbuf[0] = backspeed_str[RecievedTemp[8]]; if(RecievedTemp[8] == 3) { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, HIGH);   // turn the LED on (HIGH is the voltage level) } else if(RecievedTemp[8] == 2) { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, HIGH);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, HIGH);   // turn the LED on (HIGH is the voltage level) } else { digitalWrite(ledPin_1, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_2, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_3, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_4, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_5, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_6, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_7, LOW);   // turn the LED on (HIGH is the voltage level) digitalWrite(ledPin_8, LOW);   // turn the LED on (HIGH is the voltage level) } break; case 0x0C://backstart BackStepper_Setting_Run(settingbuf[0], MorenCycle); break; case 0x0D://backstop if(BackStepper.isRunning() == true) { BackStepper.stop(); } break; case 0x0F://integratestart if(HeadStepper.isRunning() == true) { HeadStepper.stop(); } if(BackStepper.isRunning() == true) { BackStepper.stop(); } break; case 0x1F://integratedstop if(HeadStepper.isRunning() == true) { HeadStepper.stop(); } if(BackStepper.isRunning() == true) { BackStepper.stop(); } break; default: break; } //    Serial.write(&Targetvalue, 1); //    Serial.print(Targetvalue); } }

Application of massage chair Appendix

That's all for today. I hope you find this post helpful. If you have any question, you can approach me in the section below, I'd love to help you the best way I can. Thank you for reading the article.