🤖Have you ever tried Chat.M5Stack.com before asking??😎

Categories

  • Firmware updates, Hardware Revisions, New Product info can be found here.

    75
    Topics
    823
    Posts

    T

    thanks for sharing

  • M5Stack Events

    Review Campaign
    8
    Topics
    31
    Posts

    kurikoK

    @Apex574R
    Does the Userdemo firmware running normally?

  • Wish for a feature that doesn't exist yet? this is the place to ask for it. we will collect all the requirements and enquiry's and who knows ... sometime wish might come true!

    219
    Topics
    669
    Posts

    L

    Hi,

    A good industrial pH Meter Kit will be great to have.

    Thanks

  • Forum rules - Announcements - General chit chat (ESP-32, ESP-8266, IoT, Raspberry Pi etc...)

    Anouncements Forum Rules (!!!!READ THIS FIRST BEFORE POSTING!!!!) News and Blog posts
    959
    Topics
    3.0k
    Posts

    felmueF

    Hello @alex9

    it looks like yes, GPIO0 is TX pin for RS485. See pinmap here.

    The platformio.ini example can be found here.

    Running a quick search I did not find an RS485 example, sorry.

    Edit: Maybe try this RS485 library.

    Thanks
    Felix

  • Core and Modules info.

    Modules FAQS Units Cores Bases Atom
    3.4k
    Topics
    13.7k
    Posts

    N

    Hello, I have a unit 4-relay, which works when connected to an atom-lite, but not when connected to a cores3 (SE lite)

    Here is the config for the cores3 and atom-lite.

    On the cores3 (module connected through port A), I see no devices found on i2c scan. It finds OK on the atom-lite

    [17:35:54.929][C][i2c.idf:093]: I2C Bus: [17:35:54.932][C][i2c.idf:094]: SDA Pin: GPIO2 [17:35:54.932][C][i2c.idf:094]: SCL Pin: GPIO1 [17:35:54.932][C][i2c.idf:094]: Frequency: 50000 Hz [17:35:54.935][C][i2c.idf:104]: Recovery: bus successfully recovered [17:35:54.935][C][i2c.idf:114]: Results from bus scan: [17:35:54.939][C][i2c.idf:116]: Found no devices [17:35:54.940][C][unit4relay:028]: Address: 0x26 [17:35:54.940][C][unit4relay:030]: Switch: [17:35:54.945][C][unit4relay:092]: Relay 1 'Base Relay Channel 1' [17:35:54.945][C][unit4relay:092]: Restore Mode: restore defaults to OFF [17:35:54.946][C][unit4relay:157]: Icon: 'mdi:flash' [17:35:54.946][C][unit4relay:163]: Device Class: 'switch' [17:35:54.950][C][unit4relay:092]: Relay 2 'Base Relay Channel 2' [17:35:54.950][C][unit4relay:092]: Restore Mode: restore defaults to OFF [17:35:54.952][C][unit4relay:157]: Icon: 'mdi:flash' [17:35:54.952][C][unit4relay:163]: Device Class: 'switch' [17:35:54.959][C][unit4relay:092]: Relay 3 'Base Relay Channel 3' [17:35:54.959][C][unit4relay:092]: Restore Mode: restore defaults to OFF [17:35:54.960][C][unit4relay:157]: Icon: 'mdi:flash' [17:35:54.960][C][unit4relay:163]: Device Class: 'switch' [17:35:54.963][C][unit4relay:092]: Relay 4 'Relay Channel 4' [17:35:54.963][C][unit4relay:092]: Restore Mode: restore defaults to OFF [17:35:54.963][C][unit4relay:157]: Icon: 'mdi:flash' [17:35:54.963][C][unit4relay:163]: Device Class: 'switch' [17:35:54.969][E][component:255]: unit4relay is marked FAILED: unspecified esphome: name: relay-test friendly_name: relay-test esp32: board: esp32-s3-devkitc-1 framework: type: arduino (... logger, api, wifi, ota, captive portal) external_components: - source: github://m5stack/esphome-yaml/components@main components: unit4relay refresh: 0s i2c: - id: i2c_bus sda: GPIO2 scl: GPIO1 scan: true # M5Stack 4-Relay Module - each relay at its own address unit4relay: i2c_id: i2c_bus switch: - platform: unit4relay relay_1: name: "Base Relay Channel 1" restore_mode: RESTORE_DEFAULT_OFF relay_2: name: "Base Relay Channel 2" restore_mode: RESTORE_DEFAULT_OFF relay_3: name: "Base Relay Channel 3" restore_mode: RESTORE_DEFAULT_OFF relay_4: name: "Relay Channel 4" restore_mode: RESTORE_DEFAULT_OFF

    And here for the atom (only different board and i2d ports)

    esphome: name: relay-test friendly_name: relay-test esp32: board: esp32dev framework: type: arduino (... logger, api, wifi, ota, captive portal) external_components: - source: github://m5stack/esphome-yaml/components@main components: unit4relay refresh: 0s i2c: - id: i2c_bus sda: GPIO26 scl: GPIO32 scan: true # M5Stack 4-Relay Module - each relay at its own address unit4relay: i2c_id: i2c_bus switch: - platform: unit4relay relay_1: name: "Base Relay Channel 1" restore_mode: RESTORE_DEFAULT_OFF relay_2: name: "Base Relay Channel 2" restore_mode: RESTORE_DEFAULT_OFF relay_3: name: "Base Relay Channel 3" restore_mode: RESTORE_DEFAULT_OFF relay_4: name: "Relay Channel 4" restore_mode: RESTORE_DEFAULT_OFF

  • Projects Sharing.

    469
    Topics
    1.8k
    Posts

    W

    Me, and Claude Code have been working on a custom ESP-IDF firmware for the M5Stack Unit CamS3-5MP board.

    It's part of a fun home project I have to scare the cats off the kitchen counters when I'm not there :)

    MJPEG streaming over HTTP (port 81 /stream) — compatible with Frigate NVR Single JPEG snapshot over HTTP (port 80 /) MQTT telemetry — RSSI, uptime, heap, PSRAM, FPS, error counters every 10 s Home Assistant auto-discovery — sensor, number, and button entities on connect Camera image controls via MQTT — brightness, contrast, saturation, white balance URL-based OTA — publish firmware URL to MQTT; device flashes and reboots Recovery manager — NVS boot-loop detection, 2-minute health timer, OTA rollback Core dump to flash — download crash dumps via GET /api/coredump BLE Wi-Fi provisioning — no hardcoded credentials; first-boot BLE setup

    More details of features at
    https://github.com/hbentel/M5Stack-Unit-CamS3-5MP

  • This is the place to discuss driver issues, M5 burner troubleshooting, and development of software compatible with M5Stack

    ESPHome Squareline Studio / LVGL UIFlow Arduino Micropython M5EZ ESP - IDF UiFlow 2.0
    2.5k
    Topics
    9.7k
    Posts

    felmueF

    Hello @JohnSal

    I think you only need to add one RGB unit but with number set to 6 instead of 3.

    Thanks
    Felix

  • 256
    Topics
    560
    Posts

    M

    M5Stack と SI4732 DSP で ALL BAND RADIOを 製作しました。
    LCDは 3.5" 480x320 SPI ILI9488 を接続しています。

    BLOG : M5Stack ALL BAND RADIO
    https://macsbug.wordpress.com/2026/02/26/m5stack-all-band-radio/

    m5_all_band_radio_580s-mini.png