Hello @sharek

you don't need both ext0 and ext1 for the two buttons. You should be able to cover both buttons with ext1 by adding both to the bitmask:

#define BUTTON_PIN_BITMASK ((1UL << 37) | (1UL << 39))

Thanks
Felix

Thank you for your hard work.

I've been trying to get this to compile/install using the Arduino IDE and i'm not getting anywhere... Once installed, the M5Paper just continuously reboots, flashing the screen on and off.

Watching the serial monitor I see this repeated on each reboot... Any suggestions?

Rebooting...
M5EPD initializing...OK
Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC : 0x400d7c9f PS : 0x00060330 A0 : 0x800d48ea A1 : 0x3ffb1f10
A2 : 0x3ffc19a0 A3 : 0x00000000 A4 : 0xffffffff A5 : 0x3ffc1a78
A6 : 0x0001fa40 A7 : 0x00000000 A8 : 0x00000000 A9 : 0x3ffb1ee0
A10 : 0x00000000 A11 : 0x00000000 A12 : 0x00000000 A13 : 0x000003c0
A14 : 0x0000021c A15 : 0x3f407a74 SAR : 0x00000011 EXCCAUSE: 0x0000001c
EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xffffffff

Backtrace: 0x400d7c9f:0x3ffb1f10 0x400d48e7:0x3ffb1f40 0x400d5d7e:0x3ffb1f90 0x400e174b:0x3ffb1fb0 0x40088dbd:0x3ffb1fd0

can you please send code to dhalse@gmail.com

@kilam Well done, i have similar for STEAM project, i realized a grove interface for onewire ds18b20 to monitor water temp in an aquarium at the same time reading ENV II sensor

@lumpynose the coreink default behaviour when you do a screen refresh (instead of partial refesh) is to change the whole screen to black and white several times as its basic e-ink function.
The coreink has a slow refresh rate of 15 seconds between refreshes and this is pointed out quite a few times in uiflow!

@world101 So I figured it out:

On that particular module I connected it as follows:

Left pin on module labeled 'S' to 5v on the righthand side of M5Stack (red wire)
Center pin on module (not labeled) to GND on the righthand side of M5Stack (yellow wire)
Right pin on module labeled '--' to pin 2 on the righthand side of the M5Stack (orange wire)
After you compile and upload the app tap the module to see the "Tap" message.

0_1616464971817_c969263d-aea7-40dc-8845-895ffbeb7a4f-image.png

0_1616465037306_a4780b78-a6db-44a4-8d72-6b3eccdfd416-image.png

Hi !

Thanks for this, it was very usefull to me for handling my brand new M5 CoreInk :)

It should definitely be in the Github examples from M5.

@calin I know it’s an old topic (!) but where could I find the Arduino ide code for the Weather Station?

Hope you can help 😊

@fonix232 Thanks! For me the exercise is much more exploring how the epaper display works when drawing the different components and how to optimize partial updates.

I will have a look at the projects you mentioned and see if I can find some inspiration!

Make an improvement in the main call routine. The return value of getBME280 is a boolean.
now it is possible to check whether a BME280 is connected correctly.

bool getBME280(TwoWire *theWire, double *t, double *p, double *h) { _i2c = theWire; /* check of BME280 is avilable */ uint8_t value = read8(0xD0); if (value == 0x60) // BME280 detected { reset_BME280(); // Reset BME280 write8(BME280_REGISTER_CONTROLHUMID,(uint8_t)0x01); // Select control humidity register write8(BME280_REGISTER_CONTROL, (uint8_t)0x27); // Select control measurement register write8(BME280_REGISTER_CONFIG, (uint8_t)0xA0); // Select config register readCoefficients(); // Read coefficients from BME280 *t = get_Temperature(); // Get temperature *p = get_Pressure()/100.0; // Get pressure *h = get_Humidity(); // Get Humidity return true; } else { return false; // No BME280 detected } }

Cheers,

Jan

did you find any micropython code any bluetooth communication for arduino. with arduino c code communication is not hard.i made reader https://i.ibb.co/tLJyWht/mireader.png
it is reads actual values and creates array for histogram.half part of the screen show histograms graph
alt metni
i used nRF Connect app on android which bt id and details will be used on the code.