Subcategories

• Modules
  551 Topics

  2k Posts

  H

  @Danieldsouza I prefer to use KiCAD for schematic and PCB design. The software is open source It runs on Windows, Linux, Mac there is a strong community there is a ton of libraries for thousands of components some part distributor and assembling factories provide their own library or allow symbol and footprint download making your own symbols and footprints is very easy design rule checking I am not an advanced user but managed to make a 4-layer PCB after watching a few tutorial videos. Independend of the EDA Tool make sure you avoid the common tripping hazard like missing blocking caps or unwanted ground loops.
• FAQS

  When you meet problems using M5Stack, we help you solve it.
  200 Topics

  989 Posts

  R

  @johnericsutton hard to believe that unit is designed in such way to report value only when measured source is above 0...
• Units
  505 Topics

  2k Posts

  D

  Hopefully I can shed a little light on this topic. The AIN4-20mA unit uses a STM32 processor to handle the I2C interface in software. For some reason, the timing is not wholly compatible with the Raspberry Pi kernel I2C drivers. However, the Espressif I2C implementation is a lot more tolerant and flexible and works just fine. That's why it works with the M5 controllers. There was a an update to the github repo for this unit's firmware (https://github.com/m5stack/M5Module-4-20mA-Internal-FW) which changed the I2C library that was used. It's possible that this will fix it, but I haven't bothered to set up a STM32 development system to try it. If you really want to use a Pi or other Linux host board, you could use any inexpensive ESP device (like an M5Stamp) as a go-between. Another option is to use something like the Arduino UNO Q, which runs Linux on the main processor and allows you to run C++ code on the STM32 microcontroller to talk to I2C devices. It's really better to run real-time control on a separate microcontroller anyway.
• Cores

  • Core2 for AWS
  • M5Stack Fire
  • M5stack Grey
  • M5 Stick/StickC
  • M5GO
  • FACES Kit
  • M5Stick V
  • Core 2
  1k Topics

  6k Posts

  S

  @felmue That helps a lot, thank you!
• Bases
  55 Topics

  203 Posts

  J

  I have been able to get a program to work that uses the M5EchoBase library but no luck using the unified library. For example the simple program below doesn't work. #include <M5Unified.h> void setup() { // 1. Initialize M5Unified delay(1000); // Delay for a moment to allow the system to stabilize. auto cfg = M5.config(); cfg.serial_baudrate = 115200; M5.begin(cfg); // 2. Configure the Speaker for the Atomic Audio Base (ES8311) // We access the speaker configuration directly via M5.Speaker.config() auto spk_cfg = M5.Speaker.config(); // Set pins for Atomic Audio Base (ES8311) spk_cfg.pin_bck = 8; // BCLK spk_cfg.pin_ws = 6; // LRCK (WS) spk_cfg.pin_data_out = 5; // DAC (DOUT) spk_cfg.i2s_port = I2S_NUM_0; // Configure for external codec (not internal DAC) spk_cfg.use_dac = false; spk_cfg.sample_rate = 44100; // Apply the configuration M5.Speaker.config(spk_cfg); // 3. Start the speaker M5.Speaker.begin(); // 4. Set volume (0-255) M5.Speaker.setVolume(128); } void loop() { M5.update(); // Play a 1000 Hz tone for 1000 milliseconds (1 second) M5.Speaker.tone(1000, 1000); // Wait for the tone to finish delay(1000); // Small delay before next loop delay(1000); } Is there no way to set up the ES8311 codec without using M5EchoBase? strangely if I run the program below then load the above program the tone works? But I can't stick the M5.Speaker.tone(1000, 1000); command in the program below and have it work. Does anyone know how to play a tone using only the Unified library from an AtomS3R into a Atomic Audio Base (ES8311 codec)? #include <M5Unified.h> #include <M5EchoBase.h> #if defined(CONFIG_IDF_TARGET_ESP32S3) #define RECORD_SIZE (1024 * 400) #elif defined(CONFIG_IDF_TARGET_ESP32) #define RECORD_SIZE (1024 * 400) #endif #if (ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)) M5EchoBase echobase; #else M5EchoBase echobase(I2S_NUM_0); #endif static uint8_t *buffer = nullptr; // Pointer to hold the audio buffer. void setup() { delay(1000); // Delay for a moment to allow the system to stabilize. auto cfg = M5.config(); cfg.serial_baudrate = 115200; M5.begin(cfg); // Initialize the EchoBase with ATOMS3 pinmap. #if defined(CONFIG_IDF_TARGET_ESP32S3) if (!echobase.init(44100 /*Sample Rate*/, 38 /*I2C SDA*/, 39 /*I2C SCL*/, 7 /*I2S DIN*/, 6 /*I2S WS*/, 5 /*I2S DOUT*/, 8 /*I2S BCK*/, Wire) != 0) { Serial.println("Failed to initialize EchoBase!"); while (true) { delay(1000); } } #elif defined(CONFIG_IDF_TARGET_ESP32) // Initialize the EchoBase with ATOM pinmap. if (!echobase.init(44100 /*Sample Rate*/, 25 /*I2C SDA*/, 21 /*I2C SCL*/, 23 /*I2S DIN*/, 19 /*I2S WS*/, 22 /*I2S DOUT*/, 33 /*I2S BCK*/, Wire) != 0) { Serial.println("Failed to initialize EchoBase!"); while (true) { delay(1000); } } #endif echobase.setSpeakerVolume(80); // Set speaker volume to 70%. echobase.setMicGain(ES8311_MIC_GAIN_0DB); // Set microphone gain to 0dB. buffer = (uint8_t *)malloc(RECORD_SIZE); // Allocate memory for the record buffer. // Check if memory allocation was successful. if (buffer == nullptr) { // If memory allocation fails, enter an infinite loop. while (true) { Serial.println("Failed to allocate memory :("); delay(1000); } } Serial.println("EchoBase ready, start recording and playing!"); // M5.Speaker.tone(2000, 2000); // delay(2000); } void loop() { Serial.println("Start recording..."); // Recording echobase.setMute(false); echobase.record(buffer, RECORD_SIZE); // Record audio into buffer. delay(100); Serial.println("Start playing..."); // Playing echobase.setMute(false); delay(10); echobase.play(buffer, RECORD_SIZE); // Play audio from buffer. //M5.Speaker.playRaw(buffer, RECORD_SIZE, 44100, false, 1, 0); delay(100); }
• Atom

  For topics on the M5Stack Atom.
  260 Topics

  849 Posts

  K

  After a lot of testing and searching it became apparent that the M5Atom controller did not work properly (never had this type of problem before). This, outdated software and some wrong suggestions by both ChatGPT and the AI bot from M5Stack (with the knowledge base available) made it a bit of struggle. However, after all updates and testing different hardware it finally works again. So thanks to anyone that spent time on this!