EasyLoader (beta)

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.

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CardKB v1.1

SKU:U035-B

Description

CardKB v1.1 is a card-size '50 key' QWERTY keyboard. Adpots ATMega8A as the MCU, communication port I2C, and one 'RGB-LED' indicator.

Product Features

  • Full-function keyboard, multi-key combination
  • GROVE interface, support UIFlow and Arduino
  • Two Lego compatible holes

Include

  • 1x CardKB1.1 unit
  • 1x GROVE Cable

Applications

  • Keyboard peripherals for M5Stack Core

Specification

Resources Parameter
MCU ATMega8A
Number of keys 50
RGB LED 1 piece
Communication method I2C
Net weight 17g
Gross weight 18g
Product Size 88*54*5mm
Package Size 88*58*5mm

Instructions for use

  • Single button pressed, keyboard will output the first key value (the letter button will output in a lower case form). E.g if "Q" was pressed, keyboard will output "q" (lower cased).

  • Sym+key, keyboard will output the second key value. E.g if "Sym" was pressed and then "Q" was pressed, the keyboard will output "{". If "Sym" was double pressed, then the keyboard will lock this function, all key pressed will output it's second key value.

  • Shift+key, if a letter button was pressed, it'll output upper case form. E.g if "Shift" was pressed and then "Q" was pressed, the keyboard will output "Q". If "Shift" was double pressed, then the keyboard will lock this function, all letter key pressed will output it's upper case form.

  • Fn+key(custom function key combination), keyboard will output the third key value. You can customize what function the key presses corresponds to.

EasyLoader

download EasyLoader

1.EasyLoader is a simple and fast program burner. Every product page in EasyLoader provides a product-related case program. It can be burned to the master through simple steps, and a series of function verification can be performed. .

  1. After downloading the software, double-click to run the application, connect the M5 device to the computer through the data cable, select the port parameters, click "Burn" to start burning. (For M5StickC burning, please Set the baud rate to 750000 or 115200)

PinMap

ATMega8A ISPDownload interface Pin foot definition

M5Core(GROVE A) GPIO22 GPIO21 5V GND
CardKB SCL SDA 5V GND

Protocol

  • Protocol type I2C
  • I2C Address: 0x5F
/*--------------------------------------------------------------------------------------------------*/
| KEYBOARD REG       | 0x5F
| ------------------------------------------------------------------------------------------------
| keyboard_value_reg[0] 0x5F        |  R |  KEYBOARD VALUE
/*----------------------------------------------------------------------------------------------------

Learn

A standalone off-grid LoRa pager/messenger device for the end of the world. :-)

Example

Arduino

To get the code, please click here

UIFlow

Feature Introduction

Enter information via the keyboard

  • Get key Return ASIIC value

  • Get string Return character

  • Get pressed Detect button, press to return true

Usage

To get the complete code, please click here

FAQ

Q1: How do I remove the speaker floor noise when the M5Core is on or running?

Execute the following statement in Setup() of the Arduino program

Q2: How does M5Core2 stack modules?

When M5Core2 is stacked with other M5 modules, you need to remove the battery base of Core2, which does not support module stacking.

Q3: A timeout error is displayed when uploading the program to the device

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

Q4: How to solve the phenomenon of automatic signal triggering of M5Core button A

Add the header file #include <driver/adc.h> and the function adc_power_acquire(); in the Arduino program

Q5: M5 device battery life

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.

Q6: Can multiple modules with batteries be stacked at the same time?

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)

Q7: M5 master supports WiFi connection to 5G frequency band

ESP32 module currently does not support WiFi in 5G band, only 2.4G.

Q8: The RS485 device cannot communicate normally/data is garbled. Packet loss, etc.

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

Q9: The difference between different masters and camera products

Click the link below to view the product comparison table

Q10: M5 camera image blur, how to adjust the focal length

Rotate the lens to adjust the focal length within a certain range

Q11: The control RGB LED pin of FACE II BOTTOM conflicts with the I2S DOUT pin of CORE2

FACE II BOTTOM NOT CORE2 COMPATIBLE

Q12: Does the battery run out of power quickly?

Built-in CR1220 button battery, can make it work for a long time, if the battery power is exhausted, open the Unit shell to replace the battery

Q1: How to read the programmed firmware?

Use esptool to read the flash content of esp32 and export the bin file. Refer to the detailed operation

Q2: Several solutions for esp32 board download failure in Arduino IDE board management

Restart the Arduino IDE, the computer uses the mobile AP mobile network to download.

Method 3: Download the resource package provided by M5Stack for direct installation, and extract the contents to the board management path of Arduino, such as (C:\Users\Sean\AppData\Local\Arduino15\packages), https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/arduino/packages/m5stack_v2.0.0.zip
Q3: Arduino SPIFFS file upload operation

Refer to the Github link below, use arduino-esp32fs-plugin for file upload

Q4: When M5Burner burns firmware, an error pop-up window or exception occurs

Check if the COM of the corresponding device is selected and if the M5Burner is the latest version

Q5: Does the M5 master device support multi-language display (Chinese, English, Japanese, Russian, etc.)?

UIFlow users can switch the Label font to Unicode, Arduino users can use the Chinese font library provided in the M5GFX driver library

Q6: The program cannot load the SD card normally

Confirm whether the SD card format is FAT32, and no partitions exist.

Q7: How to use Bluetooth, HTTP, SD, WebServer, FreeRTOS and other features in Arduino IDE

You can refer to the following link for other ESP32 users to share the case program

Q8: How to download programs for STAMP C3U

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.

Q9: How STAMP C3U defines UART0 output mode

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.)

Q10: Unable to connect to UIFlow Desktop IDE

Refer to the UIFlow documentation of the corresponding device to check whether the device has entered the USB programming mode.

Q11: NBIoT devices cannot connect to the network normally

Make sure that the NBIoT used is not locked. Frequent device replacement or after activating the IoT card, using traffic in different places may cause the card to be locked. If the above situation occurs, please contact the IoT card supplier. If you are using the IoT card matching M5, please contact M5 after-sales through e-commerce or email. (provide the ICCID of the IoT card)