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  • fmarengo commented on Alexis Ospitia's instructable DIY Arduino Watch Sport 2.02 months ago
    DIY Arduino Watch Sport 2.0

    Hola Alexis, felicitaciones!! Has construido alguna nueva versión de este dispositivo? Me interesa la medición de latidos cardíacos, y la oxigenación de la sangre. Cómo la realizás por favor? Gracias, abrazos desde Brasil!

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  • How to Create an Arduino Compatible Bluetooth 4.0 Module

    Try using a FTDI module instead of the Arduino board for configuring the HM-10 module. I've done it and it works!https://www.youtube.com/watch?v=N57r_hwin3I

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  • How to Create an Arduino Compatible Bluetooth 4.0 Module

    Hi, and thank you for this information! I need to transfer data from my Arduino Uno to the PC via bluetooth 4.0. Hence, I decided to use the HM-10 module. Since my PC supports bluetooth 2.0, I need a dongle with bluetooth 40. BLE. Which dongle is useful for this case? Maybe this one?Thanks a lot!!

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  • Simplest Bluetooth 4.0 BLE & Arduino for $7

    Hi ClintK2!Thank you for this instructable! I want to transfer 100 samples/s from an Arduino Nano to the smartphone, via BLE. Is this instructable useful for my needs? Thanks, God bless you!

    Hi plasmazion! Did you use HM-10 using this tutorial? Or is there a newer instructable? Thanks!

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  • Plotting Real-time Data From Arduino Using Python (matplotlib)

    Dear electronut,I tried to implement your code in my PC using Spyder editor, but unfortunately it gives me an error (see at the bottom). I also replaced strPort = args.portby strPort = "COM10"since COM10 is the port I am using in my PC (Windows7 64bits). Even in this case, the error is the same. How can I solve it from the editor, please? Thanks!usage: ldr.py [-h] --port PORTldr.py: error: argument --port is requiredAn exception has occurred, use %tb to see the full traceback.SystemExit: 2

    Hi RitwikaMDid you happen to execute the python script from a python editor (e.g Spyder)? If your answer is yes, could you please send me your code? I would like to modify the code so as to plot ONE data series from port COM10. Also, I would like to save the data series on the local HDD. Thanks!

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  • 16-bit I2C Temperature Monitor Using Arduino

    Deal Mendelbrot,Thank you very much for your help!I tested your code in my PC and it works fine! Unfortunately, it doesn't work when I tried to implement it for my case, which is an oxymeter. Basically, I need that 2 leds turn on alternatively (led1 on and led2 off, then led1 off and led2 on, and so on) periodically, every T [ms]. To this aim, I use the TimerOne library. Each time the interrupt triggers, the led states toggle and the photosensor sends the detected light level to the Arduino. My software works fine using the internal 10-bit ADC of the ATMega328. Since I need higher resolution, I need to adapt this software for the 16-bit ADS1115. Hence, I called the commandads.readADC_SingleEnded(0);in my interrupt service routine. Unfortunately, it is not working. However, the ADS1115 w...

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    Deal Mendelbrot,Thank you very much for your help!I tested your code in my PC and it works fine! Unfortunately, it doesn't work when I tried to implement it for my case, which is an oxymeter. Basically, I need that 2 leds turn on alternatively (led1 on and led2 off, then led1 off and led2 on, and so on) periodically, every T [ms]. To this aim, I use the TimerOne library. Each time the interrupt triggers, the led states toggle and the photosensor sends the detected light level to the Arduino. My software works fine using the internal 10-bit ADC of the ATMega328. Since I need higher resolution, I need to adapt this software for the 16-bit ADS1115. Hence, I called the commandads.readADC_SingleEnded(0);in my interrupt service routine. Unfortunately, it is not working. However, the ADS1115 works fine for some basical tests here. Could you please tell me how I can overcome this drawback? My feeling is that I just need one single low-delay command.We could discuss this issue via e-mail if it is ok with you (fmarengorodriguez [at] gmail [dot] com).Thank you so much, God bless you :)Fernando

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  • 16-bit I2C Temperature Monitor Using Arduino

    Thank you very much, Mendelbrot! I really apreciate your help.The method you proposed for configuring the sampling rate is clear and quite practical. However, now I realize that I need just 1 single conversion each T ms. I mean, I wait T ms, activate Arduino's pin 12 and read the analog value detected by the ADC. Then I wait for another T ms, activate Arduino's pin 13 and read the value from the ADC. To this aim, I am using TimerOne interrupt, and I've done it using the internal 10-bit ADC from Arduino. Now I need to do the same operation using the ADS1115. Is there any easy way to do this, please? If your answer is no, where can I find further help, please?If you prefer to discuss via e-mail. mi address is fmarengorodriguez (at) gmail (dot) com.Thank you for your time!

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  • 16-bit I2C Temperature Monitor Using Arduino

    Good tutorial, thank you! Do you happen to know how to configure the sampling rate? Thanks!

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  • fmarengo commented on Alexis Ospitia's instructable DIY Arduino Watch Sport 2.02 years ago
    DIY Arduino Watch Sport 2.0

    ¡¡Felicitaciones Alexis!! ¿Podrías enviarme el código por favor? Me gustaría discutir algunas otras opciones por correo (fmarengorodriguez (arroba) gmail (punto) com.¡¡Gracias miles!!

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  • Arduino AND Bluetooth HC-05 Connecting Easily

    Hello VincentY16. I had the same problem as you, until I powered up the Arduino Uno alone. Then I powered up the HC-05 module while keeping the button pressed. Hope this helps :)

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  • fmarengo followed leds channel 3 years ago