Current Product Don't Have Test Firmware
Note: pls, use PC chrome/edge browser, if can't connect, refresh the webpage.
1. Click connect button
2. After connected successfully, pick a firmware
3. Click the burn button
4. After burning successfully, Unplug the device and restart.
Unit OLED is a 1.3-inch OLED expansion screen unit. It adopts SH1107 drive scheme, supports black/white display, and the resolution is 128*64. The driver chip selects the I2C communication interface, and the user can mount it to the I2C bus of the existing device when in use, which saves IO. The back of the screen is integrated with a magnetic design, which can easily be fixed on the metal surface by adsorption. The OLED screen extension is suitable for being embedded in various instruments or control devices that need to display simple content as a display panel.
Specification | Parameter |
---|---|
Working current | 58mA |
Communication protocol | I2C address: 0x3C |
Display size | 14.7 × 29.42(mm) |
Pixel pitch | 0.17×0.17(mm) |
Pixel size | 0.15×0.15(mm) |
Viewable | Full view |
Operating temperature | 0°C to 60°C |
Net weight | 9.3g |
Gross weight | 20g |
Product Size | 24*56*8mm |
Package Size | 67*53*12mm |
Case material | Plastic ( PC ) |
M5Core(PORT A) | GPIO22 | GPIO21 | 5V | GND |
---|---|---|---|---|
Unit OLED | SCL | SDA | 5V | GND |
Datasheet
Library
#include <M5UnitOLED.h>
M5UnitOLED display;
M5Canvas canvas(&display);
static constexpr char text[] = "Hello world ! こんにちは世界! this is long long string sample. 寿限無、寿限無、五劫の擦り切れ、海砂利水魚の、水行末・雲来末・風来末、喰う寝る処に住む処、藪ら柑子の藪柑子、パイポ・パイポ・パイポのシューリンガン、シューリンガンのグーリンダイ、グーリンダイのポンポコピーのポンポコナの、長久命の長助";
static constexpr size_t textlen = sizeof(text) / sizeof(text[0]);
int textpos = 0;
int scrollstep = 2;
void setup(void)
{
display.init();
display.setRotation(2);
canvas.setColorDepth(1); // mono color
canvas.setFont(&fonts::lgfxJapanMinchoP_32);
canvas.setTextWrap(false);
canvas.setTextSize(2);
canvas.createSprite(display.width() + 64, 72);
}
void loop(void)
{
int32_t cursor_x = canvas.getCursorX() - scrollstep;
if (cursor_x <= 0)
{
textpos = 0;
cursor_x = display.width();
}
canvas.setCursor(cursor_x, 0);
canvas.scroll(-scrollstep, 0);
while (textpos < textlen && cursor_x <= display.width())
{
canvas.print(text[textpos++]);
cursor_x = canvas.getCursorX();
}
display.waitDisplay();
canvas.pushSprite(&display, 0, (display.height() - canvas.height()) >> 1);
}
Execute the following statement in Setup() of the Arduino program
When M5Core2 is stacked with other M5 modules, you need to remove the battery base of Core2, which does not support module stacking.
Reason and solution: The power supply current of the port is insufficient, which can cause the device to not enter the download mode normally. You can try to connect a capacitor (>0.1uF) between the RST pin and the GND pin, or when uploading the program, set the G0 Short-circuit to GND, so that G0 can be set to a low level state normally
Add the header file #include <driver/adc.h> and the function adc_power_acquire(); in the Arduino program
The battery life of the controller is affected by various factors such as battery capacity, operating status, and load, so there is no fixed value. Reducing the load and adopting a sleep strategy can effectively increase the battery life.
Support multiple stacks, the total capacity of the batteries in parallel increases, and the voltage remains unchanged. However, since the discharge of each battery is not balanced during use, there is a voltage difference between the batteries, which may cause the battery to charge backwards. .(will lose part of the battery capacity)
ESP32 module currently does not support WiFi in 5G band, only 2.4G.
Confirm whether the TX/RX pin on the TTL side of the pin is correct, try to add two 120Ω terminal resistors at the beginning and end of the device line to reduce signal reflection interference
Click the link below to view the product comparison table
Rotate the lens to adjust the focal length within a certain range
Use esptool to read the flash content of esp32 and export the bin file. Refer to the detailed operation
Restart the Arduino IDE, the computer uses the mobile AP mobile network to download.
Refer to the Github link below, use arduino-esp32fs-plugin for file upload
Check if the COM of the corresponding device is selected and if the M5Burner is the latest version
UIFlow users can switch the Label font to Unicode, Arduino users can use the Chinese font library provided in the M5GFX driver library
Confirm whether the SD card format is FAT32, and no partitions exist.
You can refer to the following link for other ESP32 users to share the case program
STAMP C3U enters program download mode operation: 1. Long press the center button (G9) of STAMP C3U when the power is off. 2. Connect to the computer, after the port is successfully identified, program burning.
By default, USB CDC is not enabled, the serial port output started by C3U will be output through the default pins (G20, G21) of UART0. If you want to output through USB, please use the IDE to output Its USB CDC option is enabled. (Arduino users can enable it through Tools->USB CDC on Boot-Enabled. For IDF users, please refer to the ESP IDF official documentation.)
Refer to the UIFlow documentation of the corresponding device to check whether the device has entered the USB programming mode.
Describe the problems encountered in detail. Screenshots of the programs involved or files can be added as attachments and sent to M5Stack's official after-sales email
M5Stack related resource links: Official Github