@cepics said in arduino espnow.h:

@yalezy tnks
but trying to add zip library, arduino IDE 1.8.7 say:
Specified folder/zip file does not contain a valid library

Confirmed,
I'm getting the same error.
.h and .c files need to be a folder named src

@jikuch

Hi, can you tell me: if I change something in ip5108 through i2c (for example disable auto-standby), will this changers be saved, or i must make this changes (with software) each time when i start device?

Excellent. Thank you!

It's all a matter of taste I guess. Three buttons just aren't that many, I prefer to use as few keypresses as possible. Nobody is going to write their thesis on it: it's for WLAN passwords and the like.

@moelski found the pictures, I hacked together some cheap gloves instead of making the gloves from scratch and stuck the flex sensor in between the layers of fabric. It wasn't very sophisticated just a funny musical gadget to amuse my students.
https://ibb.co/ccXmnq
https://ibb.co/necafA

Thanks for your help, I'll try to follow your directions in the following days.

Very cool Sergey. Thanks for sharing

@lastcaress 在 M5Fire and MLX90640 works 中说：

The code was compiling, it just didn't do anything when I connected the camera. Tried m5 core, fire and nothing. Tried today with m5go and it worked!

alt text

I think i have too many m5stack things

thats quite a collection you have there.

Hey Lukas,

This won't work. The mpu9250 module expects to find an MPU6500 accelerometer so even instantiating an mpu9250 object will fail during init(). Even if I remove the part of the code that checks for the MPU6500, instantiation will still fail when it attempts to initialize the magnetometer by writing to one of it's registers.

Hello again,
i've made a sketch on arduino ide to control a nema 17 stepper motor with the shield L298N

here is the sketch :
/*
Controle de moteur pas à pas avec un L298N
Le moteur est connecté sur les broches 2,3,4 et 5 de l'Arduino
Le fil de masse (GND) est commun aux 2 platines.
*/

#include <Stepper.h>

const int NbPasParTour = 200; // Nombre de pas pour 360 degres
Stepper Moteur1(NbPasParTour, 2, 3, 4, 5); // Initialise le moteur sur les broches 2 à 5

void setup()
{
Moteur1.setSpeed(60); //Vitesse de rotation du moteur
Serial.begin(9600); //Initialise le moniteur série
}

void loop()
{
Serial.println("Sens horaire"); //On fait 1 tour en sens horaire
Moteur1.step(NbPasParTour);
delay(1000); //Pause 1 seconde

Serial.println("Sens anti-horaire"); //On fait 1 tour en sens anti-horaire
Moteur1.step(-NbPasParTour);
delay(1000); //Pause 1 seconde
}

It's work fine !

But when i try on the m5, on the PIN 3, 1, 16, 17 with this sketch, the motor only vibrate :
/*
Controle de moteur pas à pas avec un L298N
Le moteur est connecté sur les broches 3, 1, 16, 17 du m5
Le fil de masse (GND) est commun aux 2 platines.
*/
#include <M5Stack.h>
#include <Stepper.h>

const int NbPasParTour = 200; // Nombre de pas pour 360 degres

Stepper Moteur1(NbPasParTour, 3, 1, 16, 17); // Initialise le moteur sur les broches

void setup()
{
Moteur1.setSpeed(100); //Vitesse de rotation du moteur
m5.begin();
M5.Lcd.setBrightness(200);

M5.Lcd.setTextColor(0xffff);
M5.Lcd.setTextSize(3);
M5.Lcd.setCursor(50, 20);
M5.Lcd.print("M5 Seeder");
}

void loop()
{
M5.Lcd.setTextColor(0x7bef);
M5.Lcd.setTextSize(2);
M5.Lcd.setCursor(55, 60);
M5.Lcd.print("Sens horaire");
Moteur1.step(NbPasParTour*2);
delay(1000); //Pause 1 seconde

M5.Lcd.setTextColor(0x7bef);
M5.Lcd.setTextSize(2);
M5.Lcd.setCursor(55, 60);
M5.Lcd.print("Sens anti-horaire");
Moteur1.step(-NbPasParTour);
delay(1000); //Pause 1 seconde

m5.update();
}

Any idea ?
thank you

Try using this code from this link to add to your M5stack Digital Clock example.

https://github.com/adafruit/RTClib/blob/master/examples/ds3231/ds3231.ino

you need to install the RTClib master library to make it work.

@millerman

I would recommend using Blynk. It has email and push notifications built into their platform and should be pretty easy to do using the Arduino IDE.

https://www.blynk.cc