Project #25 - Movement - RTC - Mk10
https://www.donluc.com/?p=4298
#DonLucElectronics #DonLuc #RTC #EEPROM #Compass #Accelerometer #Movement #ESP32 #Bluetooth #Elecrow #DFRobot #Arduino #Project #Patreon #Electronics #Microcontrollers #IoT #Fritzing #Programming #Consultant



Adafruit DS3231 Precision RTC FeatherWing
This is the DS3231 Precision RTC FeatherWing: it adds an extremely accurate I2C-integrated Real Time Clock (RTC) with a Temperature Compensated Crystal Oscillator to any Feather main board. This RTC is the most precise you can get in a small, low power package. Most RTCs use an external 32kHz timing crystal that is used to keep time with low current draw. And that's all well and good, but those crystals have slight drift, particularly when the temperature changes (the temperature changes the oscillation frequency very very very slightly but it does add up!) This RTC is in a beefy package because the crystal is inside the chip! And right next to the integrated crystal is a temperature sensor. That sensor compensates for the frequency changes by adding or removing clock ticks so that the timekeeping stays on schedule. With a CR1220 12mm coin cell plugged into the top of the FeatherWing, you can get years of precision timekeeping, even when main power is lost. Great for datalogging and clocks, or anything where you need to really know the time.
DL2502Mk01
1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 2.0" 320x240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Crowtail - I2C Hub 2.0
1 x Adafruit DS3231 Precision RTC FeatherWing
1 x CR1220 Battery
1 x Crowtail - 3-Axis Digital Compass
1 x Crowtail - 3-Axis Digital Accelerometer
1 x Lithium Ion Battery - 1000mAh
1 x Switch
1 x Bluetooth Serial Terminal
1 x USB 3.1 Cable A to C
FireBeetle 2 ESP32-E
SCL - 22
SDA - 21
DC - D2
CS - D6
RST - D3
RX2 - Bluetooth
TX2 - Bluetooth
VIN - +3.3V
GND - GND
DL2502Mk01p
DL2502Mk01p.ino
/****** Don Luc Electronics © ******
Software Version Information
Project #25 - Movement - RTC - Mk10
25-10
DL2502Mk01p.ino
DL2502Mk01
1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 2.0" 320x240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Crowtail - I2C Hub 2.0
1 x Adafruit DS3231 Precision RTC FeatherWing
1 x CR1220 Battery
1 x Crowtail - 3-Axis Digital Compass
1 x Crowtail - 3-Axis Digital Accelerometer
1 x Lithium Ion Battery - 1000mAh
1 x Switch
1 x Bluetooth Serial Terminal
1 x USB 3.1 Cable A to C
*/
// Include the Library Code
// EEPROM Library to Read and Write EEPROM
// with Unique ID for Unit
#include "EEPROM.h"
// Arduino
#include <Arduino.h>
// Wire
#include <Wire.h>
// DFRobot Display GDL API
#include <DFRobot_GDL.h>
// 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
// Accelemeter ADXL345
#include <ADXL345.h>
// Compass HMC5883L
#include <HMC5883L.h>
// RTC (Real-Time Clock)
#include "RTClib.h"
// RTC (Real-Time Clock)
RTC_DS3231 rtc;
String dateRTC = "";
String timeRTC = "";
// Compass HMC5883L
HMC5883L compass;
// Heading
float heading;
// Heading Degrees
float headingDegrees;
// Variable ADXL345 library
ADXL345 adxl;
// Accelerometer ADXL345
// x, y, z
int x;
int y;
int z;
// Standard Gravity
// xyz
double xyz[3];
double ax;
double ay;
double az;
// FullString
String FullString = "";
// Bluetooth Serial
BluetoothSerial SerialBT;
// Defined ESP32
#define TFT_DC D2
#define TFT_CS D6
#define TFT_RST D3
/*dc=*/ /*cs=*/ /*rst=*/
// DFRobot Display 240x320
DFRobot_ST7789_240x320_HW_SPI screen(TFT_DC, TFT_CS, TFT_RST);
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";
// Software Version Information
String sver = "25-10";
void loop() {
// Accelemeter ADXL345
isADXL345();
// Compass HMC5883L
isHMC5883L();
// isEEPROM
isEEPROM();
// RTC (Real-Time Clock)
isRTC();
// Accelemeter and Compass, ADXL345 and HMC5883L
isDisplayADXL345HMC5883L();
// Delay 0.5 Second
delay( 500 );
}
getAccelemeterADXL345.ino
// Accelemeter ADXL345
// Setup Accelemeter ADXL345
void isSetupADXL345(){
// Power On
adxl.powerOn();
// Set activity inactivity thresholds (0-255)
// 62.5mg per increment
adxl.setActivityThreshold(75);
// 62.5mg per increment
adxl.setInactivityThreshold(75);
// How many seconds of no activity is inactive?
adxl.setTimeInactivity(10);
//look of activity movement on this axes - 1 == on; 0 == off
adxl.setActivityX(1);
adxl.setActivityY(1);
adxl.setActivityZ(1);
//look of inactivity movement on this axes - 1 == on; 0 == off
adxl.setInactivityX(1);
adxl.setInactivityY(1);
adxl.setInactivityZ(1);
// Look of tap movement on this axes - 1 == on; 0 == off
adxl.setTapDetectionOnX(0);
adxl.setTapDetectionOnY(0);
adxl.setTapDetectionOnZ(1);
// Set values for what is a tap, and what is a double tap (0-255)
// 62.5mg per increment
adxl.setTapThreshold(50);
// 625us per increment
adxl.setTapDuration(15);
// 1.25ms per increment
adxl.setDoubleTapLatency(80);
// 1.25ms per increment
adxl.setDoubleTapWindow(200);
// set values for what is considered freefall (0-255)
// (5 - 9) recommended - 62.5mg per increment
adxl.setFreeFallThreshold(7);
// (20 - 70) recommended - 5ms per increment
adxl.setFreeFallDuration(45);
// Setting all interrupts to take place on int pin 1
// I had issues with int pin 2, was unable to reset it
adxl.setInterruptMapping( ADXL345_INT_SINGLE_TAP_BIT, ADXL345_INT1_PIN );
adxl.setInterruptMapping( ADXL345_INT_DOUBLE_TAP_BIT, ADXL345_INT1_PIN );
adxl.setInterruptMapping( ADXL345_INT_FREE_FALL_BIT, ADXL345_INT1_PIN );
adxl.setInterruptMapping( ADXL345_INT_ACTIVITY_BIT, ADXL345_INT1_PIN );
adxl.setInterruptMapping( ADXL345_INT_INACTIVITY_BIT, ADXL345_INT1_PIN );
// Register interrupt actions - 1 == on; 0 == off
adxl.setInterrupt( ADXL345_INT_SINGLE_TAP_BIT, 1);
adxl.setInterrupt( ADXL345_INT_DOUBLE_TAP_BIT, 1);
adxl.setInterrupt( ADXL345_INT_FREE_FALL_BIT, 1);
adxl.setInterrupt( ADXL345_INT_ACTIVITY_BIT, 1);
adxl.setInterrupt( ADXL345_INT_INACTIVITY_BIT, 1);
}
// Accelemeter ADXL345
void isADXL345(){
// Read the accelerometer values and store them in variables x,y,z
adxl.readXYZ(&x, &y, &z);
// Output
// FullString
// ************
FullString = "************\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
FullString = "Values of X , Y , Z: " + String(x) + " , " +
String(y) + " , " + String(z) + + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// Standard Gravity
// Acceleration
adxl.getAcceleration(xyz);
// Output
ax = xyz[0];
ay = xyz[1];
az = xyz[2];
// FullString
// ************
FullString = "************\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// xg
FullString = "X = " + String(ax) + " g" + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// yg
FullString = "y = " + String(ay) + " g" + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// zg
FullString = "z = " + String(az) + " g" + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
}
getCompassHMC5883L.ino
// HMC5883L Triple Axis Digital Compass
// Setup HMC5883L
void isSetupHMC5883L(){
// Initialize Initialize HMC5883L
compass.begin();
// Set measurement range
compass.setRange(HMC5883L_RANGE_1_3GA);
// Set measurement mode
compass.setMeasurementMode(HMC5883L_CONTINOUS);
// Set data rate
compass.setDataRate(HMC5883L_DATARATE_30HZ);
// Set number of samples averaged
compass.setSamples(HMC5883L_SAMPLES_8);
// Set calibration offset
compass.setOffset(0, 0);
}
// Compass HMC5883L
void isHMC5883L(){
// Vector norm
Vector norm = compass.readNormalize();
// Calculate heading
heading = atan2(norm.YAxis, norm.XAxis);
// Set declination angle on your location and fix heading
// You can find your declination on: http://magnetic-declination.com/
// (+) Positive or (-) for negative
// Latitude: 32° 39' 7.9" N
// Longitude: 115° 28' 6.2" W
// Magnetic Declination: +10° 35'
// Declination is POSITIVE (EAST)
// Inclination: 58° 4'
// Magnetic field strength: 45759.1 nT
// Formula: (deg + (min / 60.0)) / (180 / M_PI);
float declinationAngle = (10.0 + (35.0 / 60.0)) / (180 / M_PI);
heading += declinationAngle;
// Correct for heading < 0deg and heading > 360deg
if (heading < 0)
{
heading += 2 * PI;
}
if (heading > 2 * PI)
{
heading -= 2 * PI;
}
// Convert to degrees
headingDegrees = heading * 180/M_PI;
// Output
// FullString
// ************
FullString = "************\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// Heading
FullString = "Heading = " + String( heading ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// Degress
FullString = "Degress = " + String( headingDegrees ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
}
getDisplay.ino
// DFRobot Display 240x320
// DFRobot Display 240x320 - UID
void isDisplayUID(){
// DFRobot Display 240x320
// Text Display
// Text Wrap
screen.setTextWrap(false);
// Rotation
screen.setRotation(3);
// Fill Screen => black
screen.fillScreen(0x0000);
// Text Color => white
screen.setTextColor(0xffff);
// Font => Free Sans Bold 12pt
screen.setFont(&FreeSansBold12pt7b);
// TextSize => 1.5
screen.setTextSize(1.5);
// Don Luc Electronics
screen.setCursor(0, 30);
screen.println("Don Luc Electronics");
// Real-Time Clock
screen.setCursor(0, 60);
screen.println("Real-Time Clock");
// Version
screen.setCursor(0, 90);
screen.println("Version");
screen.setCursor(0, 120);
screen.println( sver );
// EEPROM
screen.setCursor(0, 150);
screen.println("EEPROM");
screen.setCursor(0, 180);
screen.println( uid );
}
// Accelemeter and Compass, ADXL345 and HMC5883L
void isDisplayADXL345HMC5883L(){
// DFRobot Display 240x320
// Text Display
// Text Wrap
screen.setTextWrap(false);
// Rotation
screen.setRotation(3);
// Fill Screen => white
screen.fillScreen(0xffff);
// Text Color => blue
screen.setTextColor(0x001F);
// Font => Free Sans Bold 12pt
screen.setFont(&FreeSansBold12pt7b);
// TextSize => 1.5
screen.setTextSize(1.5);
// Accelemeter ADXL345
screen.setCursor(0, 30);
screen.println("Accelemeter ADXL345");
// Accelemeter ADXL345 X
screen.setCursor(0, 60);
screen.println("X: ");
screen.setCursor(40, 60);
screen.println( x );
// Accelemeter ADXL345 Y
screen.setCursor(0, 90);
screen.println( "Y: " );
screen.setCursor(40, 90);
screen.println( y );
// Accelemeter ADXL345 Z
screen.setCursor(0, 120);
screen.println( "Z: " );
screen.setCursor(40, 120);
screen.println( z );
// Compass HMC5883L
screen.setCursor(0, 150);
screen.println( "Compass HMC5883L" );
// Heading
screen.setCursor(0, 180);
screen.println( "Heading = " );
screen.setCursor(130, 180);
screen.println( heading );
// Degress
screen.setCursor(0, 210);
screen.println( "Degress = " );
screen.setCursor(130, 210);
screen.println( headingDegrees );
}
getEEPROM.ino
// EEPROM
// isUID EEPROM Unique ID
void isUID() {
// Is Unit ID
uid = "";
for (int x = 0; x < 7; x++)
{
uid = uid + char(EEPROM.read(x));
}
}
// isEEPROM
void isEEPROM(){
// FullString
// ************
FullString = "************\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// EEPROM
FullString = "EEPROM = " + String( uid ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
}
getRTC.ino
// RTC (Real-Time Clock)
// Setup RTC
void isSetupRTC(){
// RTC (Real-Time Clock)
rtc.begin();
// RTC Lost Power
if (rtc.lostPower()) {
// When time needs to be set on a new device, or after a power loss, the
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
// This line sets the RTC with an explicit date & time, for example to set
// January 21, 2014 at 3am you would call:
// rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0))
}
}
// RTC (Real-Time Clock)
void isRTC(){
// RTC (Real-Time Clock)
DateTime now = rtc.now();
// Date
dateRTC = now.year(), DEC;
dateRTC = dateRTC + "/";
dateRTC = dateRTC + now.month(), DEC;
dateRTC = dateRTC + "/";
dateRTC = dateRTC + now.day(), DEC;
// Time
timeRTC = now.hour(), DEC;
timeRTC = timeRTC + ":";
timeRTC = timeRTC + now.minute(), DEC;
timeRTC = timeRTC + ":";
timeRTC = timeRTC + now.second(), DEC;
// FullString
// ************
FullString = "************\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// Date
FullString = "Date = " + String( timeRTC ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// Time
FullString = "Time = " + String( dateRTC ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
// FullString
// Temperature
FullString = "Temperature = " + String( rtc.getTemperature() )
+ String( " C" ) + "\r\n";
// FullString Bluetooth Serial + Serial
for(int i = 0; i < FullString.length(); i++)
{
// Bluetooth Serial
SerialBT.write(FullString.c_str()[i]);
// Serial
Serial.write(FullString.c_str()[i]);
}
}
setup.ino
// Setup
void setup()
{
// Serial Begin
Serial.begin(115200);
Serial.println("Starting BLE work!");
// Bluetooth Serial
SerialBT.begin("DL2502Mk01");
Serial.println("Bluetooth Started! Ready to pair...");
// Delay
delay( 100 );
// EEPROM Size
EEPROM.begin(EEPROM_SIZE);
// EEPROM Unique ID
isUID();
// Delay
delay(100);
// Wire
Wire.begin();
// Delay
delay(100);
// Setup RTC
isSetupRTC();
// Delay
delay(100);
// DFRobot Display 240x320
screen.begin();
// Delay
delay(100);
// Setup Accelemeter ADXL345
isSetupADXL345();
// Setup HMC5883L
isSetupHMC5883L();
// DFRobot Display 240x320 - UID
// Don Luc Electronics
// Version
isDisplayUID();
// Delay 5 Second
delay( 5000 );
}
People can contact us: http://www.donluc.com/?page_id=1927
Electronics, IoT, Teacher, Instructor, R&D and Consultant
-Programming Language
-Microcontrollers (PIC, Arduino, Raspberry Pi, Arm, Silicon Labs, Espressif, Etc...)
-IoT
-Wireless (Radio Frequency, Bluetooth, WiFi, Etc...)
-Robotics
-Automation
-Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
-Unmanned Vehicles Terrestrial and Marine
-Machine Learning
-Artificial Intelligence (AI)
-RTOS
-Sensors, eHealth Sensors, Biosensor, and Biometric
-Research & Development (R & D)
-Consulting
-Etc...
Follow Us
Luc Paquin – Curriculum Vitae - 2025
https://www.donluc.com/luc/
Web: https://www.donluc.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/@thesass2063
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
Patreon: https://patreon.com/DonLucElectronics59
DFRobot: https://learn.dfrobot.com/user-10186.html
Elecrow: https://www.elecrow.com/share/sharepj/center/no/760816d385ebb1edc0732fd873bfbf13
TikTok: https://www.tiktok.com/@luc.paquin8
Twitch: https://www.twitch.tv/lucpaquin
LinkedIn: https://www.linkedin.com/in/jlucpaquin/
Don Luc
