L298N Driver ?? In this video I have used L293D motor driver shield. Make sure the voltage is between 6 to 9 volts.

I give 7.4V but I use L298N motor driver

can i also use a regular Arduino uno without a microcontroler?

Adafruit Motor Shield V1 Library

Arduino UNO without Microcontroller !! I didn't understand.

If you want to operate the motors in two groups, having three motors in each group then you can use the same motor driver. But if you want to control each motor separately then you have to use multiple motor drivers.

I think you have powered the ESP8266 in wrong way. Check connections and connect as per circuit diagram.

@@UtGoTech i cross verified everything but still it doesnot showing in available networks to connect wifi , i have switched off my mobile data and reconnected everything according to circuit diagram but still its not working

@Ok. Send me a picture of your RC Car through Instagram.

This is due to power issue. I suggest you first follow the circuit diagram. If issue still persist then let me know.

Look carefully. Code is given in the video description.

Bluetooth RC Controller

Check for short circuit

You can use relay modules to control solenoid.

Yes that's obvious because you are connecting to WIFI which is hosted by ESP8266. You have to switch off your mobile data and then use the app to control the car.

Code is given in the video description

Illa bro code is not available video description Ones more uplode drive plese

It's uploaded but maybe in your region it's facing some issues. Contact me through Instagram I will send you the link.

Contact me through Instagram I will schedule a time for this.

You can charge individual batteries using TP4056 charger module or if you want charge the battery pack then you have to use 2S lithium ion battery charger module.

You will have to use two lithium ion batteries connected in series to make 7.4 Volt battery pack.

@UtGoTech wow..that's logic thank you dude subscribed🤩🤩

Ok I will make one tutorial or I will do a live class for this.

@UtGoTech thanks

@ You can contact me through Instagram and fix a date for the live class.

@@UtGoTech I messaged u through Instagram before

Great 👍 I would like to see your project. If possible tag me on Instagram.

Have to installed the Adafruit motor shield v1 library?

@@UtGoTech yes

​@​what error are you getting ?

Could you please describe the issue in more detail?

@UtGoTech I uploaded the code but was not a WiFi name

@ Check all the connection, if issue persists then you can contact me through Instagram. My id is UtGo_Tech

@@UtGoTech The problem was resolved, thanks

Great 👍

Yes, but it adds to the RC car budget and increases its price. If you have a glue gun, then you should definitely use that.

Sorry I didn't understand what you have said. If you want to contact then you can contact me though Instagram.

@UtGoTech id broo

@ You can contact me through Instagram UtGo_Tech

Which video tutorial do you want me to make?

Programs explanation​@@UtGoTech

@ Sure I will do.

What do you want to upgrade in sensor?

Thanks for the suggestion! I'll try to cover the basics in a future video.

Sorry Bro, I don't have access to any apple device, so currently I am unable to suggest app.

First pair the HC-05 Bluetooth Module using the phone's Bluetooth setting menu, after that open the Bluetooth RC Controller app and select the paired HC-05 Bluetooth Module.

I have a 4 conoctor bluetooth module is that the problem???​@@UtGoTech

@@BumithaMirihagalla Yes you can use it if it has Power, Ground, RX and TX pin available

Check if the jumper is connected or not. Check if the voltage is correct or not.

Don't open the code in Google drive just download it and open it using the Arduino IDE.

Ok

In that it also showing the file is not supported

Yes that why I told you to just download it and then open it using Arduino IDE.

If you are using Simple BO Motors as shown in the video then its not required.

Bluetooth RC Controller

Glad it was helpful! 👍

Yes if you can install the necessary libraries then you can upload using mobile using otg.

Thanks for reply

First you have to switch off you mobile data and then connect to the WIFI network hosted by ESP8266 and then connect using the app.

It is possible to use single battery but for that you have to use a voltage step-up module with output current rating of 2 Ampere (minimum) in combination with high C rating good quality lithium ion battery.

@UtGoTech what about single battery which you used above

@@rhyik I have used two 18650 lithium ion batteries in series to make a 2S battery pack.

@@UtGoTech thank you man , i have Lil issue with power source

@@rhyik What issues do you have with the power source?

I have seen shield for ESP8266 but I didn't found any motor driver shield for ESP32.

I had ordered custom pcb from pcbway is esp32​@@UtGoTech

@ Great

Code is given in the video description.

Thank you brother ❤❤❤❤❤

@ Welcome

@ Most Welcome Brother

You can make one for yourself by adding DC jack and a switch.

But how 🤔 😐

@@deepalgor9913 You have to take a battery holder and connect terminals of battery holder in such a way to make it a series battery holder and then connect the positive of the battery pack to a switch and then from switch to positive of DC Jack and then negative of the battery pack to negative of the DC Jack. For reference, you can watch this part of my WIFI RC Car video where I have shown how to make a 2 cell series battery holder with switch.

Thanks bro 😊😊

@ Welcome Bro

First check if the code is uploaded or not.

yes you can

App link is given in the video description.

Whenever you connect some USB device, your computer assigns a com port to that device. So you have to find the port in which your Arduino board is connected and then select that port.

The code depends on the type of hardware used and the way it is connected to one another. That's why it should be written from scratch, you can't just merge different code.

You're welcome! 😊

Thank you!🤩

Yes you can use ESP32 with 3.3 Volt power source.

@@UtGoTech hey I have done few connections: MAX30102 VIN to ESP32 3.3V MAX30102 GND to ESP32 GND MAX30102 SCL to ESP32 D22 (SCL) MAX30102 SDA to ESP32 D21 (SDA) with this code #include <Wire.h> #include "MAX30105.h" #include "spo2_algorithm.h" MAX30105 particleSensor; #define MAX_BRIGHTNESS 255 // Define SDA and SCL pins for ESP32 if necessary #define SDA_PIN 21 #define SCL_PIN 22 #if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__) uint16_t irBuffer[100]; //infrared LED sensor data uint16_t redBuffer[100]; //red LED sensor data #else uint32_t irBuffer[100]; //infrared LED sensor data uint32_t redBuffer[100]; //red LED sensor data #endif int32_t bufferLength; //data length int32_t spo2; //SPO2 value int8_t validSPO2; //indicator to show if the SPO2 calculation is valid int32_t heartRate; //heart rate value int8_t validHeartRate; //indicator to show if the heart rate calculation is valid byte pulseLED = 11; //Must be on PWM pin byte readLED = 13; //Blinks with each data read void setup() { Serial.begin(115200); // Initialize serial communication at 115200 bits per second: pinMode(pulseLED, OUTPUT); pinMode(readLED, OUTPUT); // Initialize I2C communication for ESP32 Wire.begin(SDA_PIN, SCL_PIN); // Initialize with specified pins // Initialize sensor if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) // Use default I2C port, 400kHz speed { Serial.println(F("MAX30105 was not found. Please check wiring/power.")); while (1); } Serial.println(F("Attach sensor to finger with rubber band. Press any key to start conversion")); while (Serial.available() == 0); // Wait until user presses a key Serial.read(); byte ledBrightness = 60; // Options: 0=Off to 255=50mA byte sampleAverage = 4; // Options: 1, 2, 4, 8, 16, 32 byte ledMode = 2; // Options: 1 = Red only, 2 = Red + IR, 3 = Red + IR + Green byte sampleRate = 100; // Options: 50, 100, 200, 400, 800, 1000, 1600, 3200 int pulseWidth = 411; // Options: 69, 118, 215, 411 int adcRange = 4096; // Options: 2048, 4096, 8192, 16384 particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange); // Configure sensor with these settings } void loop() { bufferLength = 100; // Buffer length of 100 stores 4 seconds of samples running at 25sps // Read the first 100 samples and determine the signal range for (byte i = 0; i < bufferLength; i++) { while (particleSensor.available() == false) // Do we have new data? particleSensor.check(); // Check the sensor for new data redBuffer[i] = particleSensor.getRed(); irBuffer[i] = particleSensor.getIR(); particleSensor.nextSample(); // We're finished with this sample so move to the next sample Serial.print(F("red=")); Serial.print(redBuffer[i], DEC); Serial.print(F(", ir=")); Serial.println(irBuffer[i], DEC); } // Calculate heart rate and SpO2 after first 100 samples (first 4 seconds of samples) maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate); // Continuously taking samples from MAX30102. Heart rate and SpO2 are calculated every 1 second while (1) { // Dump the first 25 sets of samples in memory and shift the last 75 sets of samples to the top for (byte i = 25; i < 100; i++) { redBuffer[i - 25] = redBuffer[i]; irBuffer[i - 25] = irBuffer[i]; } // Take 25 sets of samples before calculating the heart rate. for (byte i = 75; i < 100; i++) { while (particleSensor.available() == false) // Do we have new data? particleSensor.check(); // Check the sensor for new data digitalWrite(readLED, !digitalRead(readLED)); // Blink onboard LED with every data read redBuffer[i] = particleSensor.getRed(); irBuffer[i] = particleSensor.getIR(); particleSensor.nextSample(); // We're finished with this sample so move to next sample // Send samples and calculation result to terminal program through UART Serial.print(F("red=")); Serial.print(redBuffer[i], DEC); Serial.print(F(", ir=")); Serial.print(irBuffer[i], DEC); Serial.print(F(", HR=")); Serial.print(heartRate, DEC); Serial.print(F(", HRvalid=")); Serial.print(validHeartRate, DEC); Serial.print(F(", SPO2=")); Serial.print(spo2, DEC); Serial.print(F(", SPO2Valid=")); Serial.println(validSPO2, DEC); } // After gathering 25 new samples, recalculate HR and SPO2 maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate); // Allow the system to process other tasks delay(100); // Add a short delay to prevent watchdog reset yield(); // Yield to prevent watchdog timer timeout } } but still not getting any output could you help?

@ First use I2C scanner sketch and check if your ESP board is able to detect the MAX module or not.

@@UtGoTech Thanks

Welcome

Check battery voltage. What type of battery are you using?

@UtGoTech the battery voltage is same That problem face by using 2 channle relay

@@sadashivpokale7860 what problems you are facing? Give details.

@@UtGoTech i will contact you The problem is blutooth conect but not move car by giving instructions

@@UtGoTech lithium-ion battery

Have you used 2 lithium-ion batteries in a series? Have you charged them?

It should be in the range of Wi-Fi signals of the ESP8266. If you want to increase the range then use the ESP8266 board with an external antenna.

Just upload the code after selecting the correct board and port.