Hi
Txs, I found it and will order one. It is indeed the most easy sollution.
Henk.

Please use esptool from command line and use the erase flash command and see if your problem persists https://github.com/espressif/esptool

solved on commenting out

gpio_deep_sleep_hold_dis();

in

Documents/Arduino/libraries/M5Stack/src/utility/Power.cpp

I don't know why, but now arduino compile

@rob-biernat It can be hit and miss.
Sometimes code on existing function changes resulting in broken code. You can try it but just be mindful of the issues the change may bring.

this is my solution:

#include <M5Stack.h> #include <U8g2lib.h> uint8_t bat = M5.Power.getBatteryLevel(); U8G2_SH1107_64X128_1_4W_HW_SPI u8g2(U8G2_R1, /* cs=*/ 14, /* dc=*/ 27, /* reset=*/ 33); void setup(void) { M5.begin(); Wire.begin(); u8g2.begin(); Serial.begin(9600); } void loop(void) { delay(500); Batteria(); } void Batteria() {// u8g2.firstPage(); do { if (M5.Power.isCharging()) { // DEBUG Serial.println("Battery is charging"); u8g2.setFont(u8g2_font_battery19_tn); u8g2.drawGlyph(2, 20, 48); u8g2.setFont(u8g2_font_unifont_t_symbols); u8g2.drawGlyph(1, 16, 8623); //fulmine } else { u8g2.setFont(u8g2_font_battery19_tn); u8g2.drawGlyph(2, 20, 48); // VUOTA if (bat > 50) { u8g2.drawGlyph(2, 20, 49); // una tacca } if (bat > 100) { u8g2.drawGlyph(2, 20, 50); // //due tacche } if (bat > 150) { u8g2.drawGlyph(2, 20, 51); // tre tacche } if (bat > 200) { u8g2.drawGlyph(2, 20, 52); // quattro tacche } if (bat > 250) { u8g2.drawGlyph(2, 20, 53); // cinque tacche } } /// FOR DEBUG///// //u8g2.setFont(u8g2_font_7Segments_26x42_mn); //u8g2.setCursor(20, 52); //u8g2.print(bat); //Serial.print(bat); //Serial.println(" %"); } while ( u8g2.nextPage() ); }

right now.....

Hi @Powersoft this is as simple as loading images from the flash. Only you just have to mount the sd and then point the directory towards the location of your file.

import uos uos.sdconfig(uos.SDMODE_SPI,clk=18,mosi=23,miso=19,cs =4) uos.mountsd() image0 = M5Img(0, 0, "/sd/face.jpg", True) image0.show()

Keep in mind these requirement:

Image must be of jpg file type must not exceed 25kb in file size image name including extension must not exceed 10 letters

@m5-docs
I tried this - it starts the installation, but gives a message :
Error downloading https://dl.espressif.com/dl/esptool-2.5.0-windows.zip
java.lang.RuntimeException: java.lang.Exception: Error downloading https://dl.espressif.com/dl/esptool-2.5.0-windows.zip
Until now none of the json links worked for me.
Please help.

Found the solution. a New clean install with the latest version. Now it's compiles well !

Serial2.begin(115200, SERIAL_8N1, 13, 4) and you can use Serial2 in grove

Scratches Head and gets a splinter
Is the install creating the symlink device?
Sometimes I had issues with hardware in ubuntu and raspbian and had to manually create the link which then links back to ttyUSB0.

Glad you got it sorted. Most of the time, issues like this are the driver not working or the lead failing.

Thank you for your answer. I try this weekend to understand the program and apply it. I think I did not understand something important related to timer and ticker.
Have a nice weekend.

@halojanus Which version of Arduino are you running? try to make sure your running the latest. There are some incompatibilities with the stick c libraries in older versions of arduino

@bertram
mqtt with treeview, sorry

@jimw Please try this code.
Serial speed 115200

and the firmware (1.2.3-en) for micropython
It is not for Arduino.

#include <M5Stack.h> int servoPin = 5; void servoSet(int Angle, int Time) { int pulseWidth; int TimeCount; TimeCount = Time / 20; for (int i = 0; i <= TimeCount; i++) { pulseWidth = map(Angle, 0, 180, 544, 2400); digitalWrite(servoPin, HIGH); delayMicroseconds(pulseWidth); digitalWrite(servoPin, LOW); delayMicroseconds(20000 - pulseWidth); } } void setup() { M5.begin(); M5.Lcd.printf("M5Stack Servo test:\n"); pinMode(servoPin, OUTPUT); } void loop() { M5.Lcd.printf("Angle 45deg\n"); Serial.println("Angle 45deg"); servoSet(45, 1000); //45deg M5.Lcd.printf("Angle 135deg\n"); Serial.println("Angle 135deg"); servoSet(135, 1000); //135deg }