Countermeasure: Turn on the ADC Power of GPIO39.
#include <driver/adc.h>
void setup(){
adc_power_acquire(); // ADC Power ON
The countermeasures have been clarified by the investigation and analysis of Mr. nao *.
https://twitter.com/mikasa231/status/1403576681701335044
We would like to thank Mr. nao * for his efforts.
ded it to my blog. Postscript: 2021.06.13
ButtonA on M5Stack does not work properly
https://macsbug.wordpress.com/2021/05/02/buttona-on-m5stack-does-not-work-properly/
Very great!
arduino-esp32 version 1.0.5-rcX
The compiled project will not work consistently because there is a wifi related bug and sometimes the button A (left) will receive the pushed event (many events)
This problem should be cured after wifi.setSleep (False) after wifi.begin.
Please refer to the following.
https://macsbug.wordpress.com/2021/05/02/buttona-on-m5stack-does-not-work-properly/
This is a report of measures for the A button of M5Stack and the B button of M5Stick C to operate without permission.
Workaround：WiFi.setSleep(false);
ButtonA on M5Stack does not work properly : May 02, 2021
https://macsbug.wordpress.com/2021/05/02/buttona-on-m5stack-does-not-work-properly/
I made 4 types of Web Radio with M5Stack.
1. VS1053B Module
2. UDA1334A I2S DAC Module
3. PCM5102A I2S DAC Module
4. MAX98357A I2S DAC Amplifier Module
Constitution :
1. Development environment : Arduino IDE 1.8.13
2. HARD：M5Stack Basic, Gray , Fire
Specification :
1. Station : 150
2. Operation : button A：Volume – . button B：Channel up . button C：Volume +
//------------------------------------------------------------------------------------
1. Web Radio of M5Stack : Jan 08, 2021
https://macsbug.wordpress.com/2021/01/08/web-radio-of-m5stack/
Constitution :
1. Library：baldram/ESP_VS1053_Library
2. HARD：VS1053B Board
Cost : $11
//------------------------------------------------------------------------------------
2. Web_Radio_of_M5Stack_I2S_DAC : Feb 14, 2021
https://macsbug.wordpress.com/2021/02/14/web_radio_of_m5stack_i2s_dac/
Constitution :
_1. HARD：UDA1334A I2S DAC Module
Specification :
_1. Document vocalization function
Cost : $10
//------------------------------------------------------------------------------------
3. Web Radio of M5Stack PCM5102A I2S DAC : Feb 19, 2021
https://macsbug.wordpress.com/2021/02/19/web-radio-of-m5stack-pcm5102a-i2s-dac/
Constitution :
_1. HARD：PCM5102A I2S DAC Module
Specification :
_1. Document vocalization function
Cost : $10
//------------------------------------------------------------------------------------
4. Web Radio with a built-in speaker in M5Stack : Apr 16, 2021
https://macsbug.wordpress.com/2021/04/16/web-radio-with-a-built-in-speaker-in-m5stack/
Constitution :
_1. Library：schreibfaul1/ESP32-audioI2S
_2. HARD：MAX98357A I2S DAC Amplifier Module
_3. HARD：50x50mm Speaker
_4. HARD：2400mA Battery Module
Specification :
_1. Document vocalization function
Cost : $10
//------------------------------------------------------------------------------------
What is EasyLoader?
SD-UPdater for M5StickC is below.
matsumo / M5StickC-SD-Updater
https://github.com/matsumo/M5StickC-SD-Updater
I had also a closer look at the PCB and recognized a "missing" component near the RESET button:
The part is C44 100nF.
Removed on M5Stack Fire to prevent Nois.
See below.
Parts arrangement of M5Stack
https://macsbug.wordpress.com/2020/04/01/parts-arrangement-of-m5stack/
The MAX40200 is a great idea.
The following information may be helpful.
Cannot write to M5StickC on macOS Catalina :
https://qiita.com/SamAkada/items/fa32d6072a832a10cd84
How to solve the problem that M5StickC can not be written with Arduino IDE of macOS Catalina :
https://tech.fusic.co.jp/posts/2020-02-12-macos-catalina-m5stickc/
There is a way to attach a diode to the Battery Module.
Blog：USB Cable and Reset prevention
https://macsbug.wordpress.com/2020/04/07/usb-cable-and-reset-prevention/
Level converter is required for connection.
resistor to connect
Meter PZEM-004T with Arduino ESP32 ESP8266 Python & Raspberry Pi
Modification TTL UART from 5v to 3.3v
http://pdacontrolen.com/meter-pzem-004t-with-arduino-esp32-esp8266-python-raspberry-pi/
level converter to connect
Measuring home energy consumption with the PZEM004T and ESP8266
https://primalcortex.wordpress.com/tag/pzem004t/
There is a similar question below.
http://forum.m5stack.com/topic/1454/m5stick-oled-cant-turn-on
It can be started by the following method.
M5StickC Start Adapter
https://macsbug.wordpress.com/2019/07/09/m5stickc-start-adapter/
How to NES Games on Mac.
NES GAME with M5STACK：2018.05.07
Creation date : 2018.05.07
Creator : macsbug
https://macsbug.wordpress.com/2018/05/07/nes-game-with-m5stack/
I made M5Stack Wheel Module.
Creation date : 2019.08.21
Creator : macsbug
COST : JPY 1500 ( $14 )
blog : https://macsbug.wordpress.com/2019/08/21/m5-wheel-module-moio/
The following modules are also used:
1 . 2400mA Battery Module：2018.08.20
COST : JPY 760 ( $7 )
blog : https://macsbug.wordpress.com/2018/08/20/m5stack-strongest-2400-mah-battery-module/
2 . Make M5Stack Servo Module：2019.08.10
COST : JPY 330 ( $4 )
blog : https://macsbug.wordpress.com/2019/08/10/make-m5stack-servo-module/
Displayed electronic animation eyes with M5Stack.
Creation date: 2019.05.06
Creator: macsbug
blog：https://macsbug.wordpress.com/2019/05/06/m5stack-electronic-animated-eyes/
