Project #26 – Radio Frequency – Bluetooth SparkFun Thing Plus – ESP32 WROOM – Mk20

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#DonLucElectronics #DonLuc #RadioFrequency #Bluetooth #SparkFun #Arduino #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

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SparkFun Thing Plus – ESP32 WROOM

The SparkFun ESP32 Thing Plus is the next step to get started with Espressif IoT ideations while still enjoying all the amenities of the original ESP32 Thing. Espressif’s ESP32 WROOM is a powerful WiFi and Bluetooth MCU module that targets a wide variety of applications. At the core of this module is the ESP32-D0WDQ6 chip which is designed to be both scalable and adaptive. To make the Thing Plus even easier to use, we’ve moved a few pins around to make the board Feather compatible and it utilizes our handy Qwiic Connect System which means no soldering or shields are required to connect it to the rest of your system.

The ESP32 Thing plus integrates a rich set of peripherals, ranging from capacitive touch sensors, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C. Thanks to the onboard ESP32 WROOM module, the SparkFun Thing Plus features 16MB of flash memory, 520kB of internal SRAM, an integrated 802.11 BGN WiFi transceiver and dual-mode Bluetooth capabilities, and a JST connector to plug in a LiPo battery.

DL2307Mk01

1 x Arduino Uno
1 x SparkFun Thing Plus – ESP32 WROOM
1 x SparkFun Bluetooth Mate Silver
2 x SparkFun Cerberus USB Cable

Arduino Uno

RX – Digital 3
TX – Digital 2
VIN – +3.3V
GND – GND

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DL2307Mk01pr.ino

/* ***** Don Luc Electronics © *****
Software Version Information
Project #26 - Radio Frequency - Bluetooth SparkFun Thing Plus - ESP32 WROOM - Mk20
26-20
DL2307Mk01pr.ino
1 x Arduino Uno
1 x SparkFun Thing Plus - ESP32 WROOM
2 x SparkFun Bluetooth Mate Silver
2 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// Software Serial
#include <SoftwareSerial.h>

// Software Serial
// TX-O pin of bluetooth mate, Arduino D2
int bluetoothTx = 2;
// RX-I pin of bluetooth mate, Arduino D3
int bluetoothRx = 3;
// Bluetooth
SoftwareSerial bluetooth(bluetoothTx, bluetoothRx);

// Software Version Information
String sver = "26-20";

void loop() {

  // isBluetooth
  isBluetooth();
 
}

getBluetooth.ino

// Bluetooth
// Setup Bluetooth
void isSetupBluetooth(){

  // Setup Bluetooth
  // Begin the serial monitor at 9600bps
  Serial.begin(9600);
  // Bluetooth
  // The Bluetooth Mate defaults to 115200bps
  bluetooth.begin(115200);
  
  // Print three times individually
  bluetooth.print("$");
  bluetooth.print("$");
  bluetooth.print("$");
  // Enter command mode
  // Short delay, wait for the Mate to send back CMD
  delay(100);
  // Temporarily Change the baudrate to 9600, no parity
  bluetooth.println("U,9600,N");
  // 115200 can be too fast at times for NewSoftSerial to relay the data reliably
  // Start bluetooth serial at 9600
  bluetooth.begin(9600);
  
}
// isBluetooth
void isBluetooth() {

  // If the bluetooth sent any characters
  if(bluetooth.available())
  {
    
    // Send any characters the bluetooth prints to the serial monitor
    Serial.print((char)bluetooth.read());
    
  }
  // If stuff was typed in the serial monitor
  if(Serial.available())
  {
    
    // Send any characters the Serial monitor prints to the bluetooth
    bluetooth.print((char)Serial.read());
    
  }

}

setup.ino

// Setup
void setup()
{
  
  // Setup Bluetooth
  isSetupBluetooth();

}

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SparkFun Thing Plus – ESP32 WROOM

RX2 – Bluetooth
TX2 – Bluetooth
VIN – +3.3V
GND – GND

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DL2307Mk01ps.ino

/* ***** Don Luc Electronics © *****
Software Version Information
Project #26 - Radio Frequency - Bluetooth SparkFun Thing Plus - ESP32 WROOM  - Mk20
26-20
DL2307Mk01pr.ino
1 x Arduino Uno
1 x SparkFun Thing Plus - ESP32 WROOM
2 x SparkFun Bluetooth Mate Silver
2 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// Bluetooth Serial
#include "BluetoothSerial.h"
#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
#endif

// Bluetooth Serial
BluetoothSerial SerialBT;

// Software Version Information
String sver = "26-20";

void loop() {

  // isBluetooth
  isBluetooth();

}

getBluetooth.ino

// Bluetooth
// Setup Bluetooth
void isSetupBluetooth(){

  // Serial Begin
  Serial.begin(9600);
  
  // Bluetooth device name
  SerialBT.begin("DL2307Mk01ps");
  
  // Serial
  Serial.println("The device started, now you can pair it with bluetooth!");
  
}
// isBluetooth
void isBluetooth() {

  // If stuff was typed in the serial monitor
  if (Serial.available()) {
    
    // Send any characters the Serial monitor prints to the bluetooth
    SerialBT.write(Serial.read());
    
  }
  // If the bluetooth sent any characters
  if (SerialBT.available()) {
    
    // Send any characters the bluetooth prints to the serial monitor
    Serial.write(SerialBT.read());
    
  }
  // Delay
  delay(20);

}

setup.ino

// Setup
void setup()
{
  
  // Setup Bluetooth
  isSetupBluetooth();

}

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People can contact us: https://www.donluc.com/?page_id=1927

Technology Experience

• Programming Language
• Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
• IoT
• Wireless (Radio Frequency, Bluetooth, WiFi, Etc…)
• Robotics
• Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
• Unmanned Vehicles Terrestrial and Marine
• Machine Learning
• RTOS
• Research & Development (R & D)

Instructor, E-Mentor, STEAM, and Arts-Based Training

• Programming Language
• IoT
• PIC Microcontrollers
• Arduino
• Raspberry Pi
• Espressif
• Robotics

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Luc Paquin – Curriculum Vitae – 2023
https://www.donluc.com/luc/

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