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ATOM Matrix and ATOM Lite are ESP32 development board with a size of only 24 * 24mm.It provides more GPIO for user customization which is very suitable for embedded smart home devices and in making smart toys. The main control adopts the ESP32-PICO chip which comes integrated with Wi-Fi and Bluetooth technologies and has a 4MB of integrated SPI flash memory. ATOM board provides an Infra-Red LED, RGB LED, buttons, and a PH2.0 interface. In addition, it can connect to external sensors and actuators through 6 GPIOs. The on-board Type-C USB interface enables rapid program upload and execution. ATOM Matrix have 5 * 5 RGB LED matrix, built-in IMU sensor (MPU6886).
| Neo | GPIO27 |
| Btn | GPIO39 |
| CLK(MPU6886) | GPIO21 |
| SDA(MPU6886) | GPIO25 |
| IR | GPIO12 |
| Btn | GPIO39 |
GROVE interface
| ESP32 chip | GPIO32 | GPIO26 | 5V | GND |
| PH2.0 interface | SCL | SDA | 5V | GND |
Atom pixel tool
| enum | Am_mode{kMoveRight,kMoveLeft,kMoveTop,kMoveButtom} |
| void | animation(uint8_t *buffptr, uint8_t amspeed, uint8_t ammode, int64_t amcount = -1) |
| void | displaybuff(uint8_t *buffptr, int8_t offsetx = 0, int8_t offsety = 0) |
| void | MoveDisPlayBuff(int8_t offsetx = 0, int8_t offsety = 0) |
| void | setBrightness(uint8_t brightness) |
| void | drawpix(uint8_t xpos, uint8_t ypos, CRGB Color) |
| void | drawpix(uint8_t Number, CRGB Color) |
| void | fillpix(CRGB Color) |
| void | clear() |
| Constant | Value | Description |
| LED_Display::kMoveRight | 0x01 | Move the image to the right |
| LED_Display::kMoveLeft | 0x02 | Move the image to the left |
| LED_Display::kMoveTop | 0x04 | Move the image to the top |
| LED_Display::kMoveButtom | 0x08 | Move the image to the buttom |
void animation(uint8_t *buffptr, uint8_t amspeed, uint8_t ammode, int64_t amcount = -1)
Start moving animation of an image
parameter list
| name | type | range | default | description |
| buffptr | uint8_t* | - | - | Image pointer |
| amspeed | uint8_t | 0 ~ 255 | - | Time interval of image movement |
| ammode | uint8_t | See also Am_mode | - | Animation mode of image movement |
| amcount | int64_t | -1 ~ MAXSIZE of int64_t | -1 | The distance the image moves (pixels) |
return value
null
void displaybuff(uint8_t *buffptr, int8_t offsetx = 0, int8_t offsety = 0)
Display an image
parameter list
| name | type | range | default | description |
| buffptr | uint8_t* | - | - | Image pointer |
| offsetx | uint8_t | -127 ~ 127 | 0 | Horizontal image offset |
| offsety | uint8_t | -127 ~ 127 | 0 | Vertical image offset |
return value
null
void MoveDisPlayBuff(int8_t offsetx = 0, int8_t offsety = 0)
Move the image data in the display buff
parameter list
| name | type | range | default | description |
| offsetx | int8_t | -127 ~ 127 | 0 | Horizontal image offset |
| offsety | int8_t | -127 ~ 127 | 0 | Vertical image offset |
return value
null
void setBrightness(uint8_t brightness)
Set the Leds Brightness
Warning: It is not recommended to set the LED brightness to 100. Setting the LED brightness to 100 may cause overheating
parameter list
| name | type | range | default | description |
| brightness | uint8_t | 0 ~ 100 | - | Brightness of Leds |
return value
null
void drawpix(uint8_t xpos, uint8_t ypos, CRGB Color)
Set the color of a LED in coordinate mode
parameter list
| name | type | range | default | description |
| xpos | uint8_t | 0 ~ 255 | 0 | coordinate x |
| ypos | uint8_t | 0 ~ 255 | 0 | coordinate y |
| Color | CRGB | - | - | Color of Led |
return value
null
void drawpix(uint8_t Number, CRGB Color)
Set the color of a LED
parameter list
| name | type | range | default | description |
| Number | uint8_t | 0 ~ 255 | 0 | number of Led |
| Color | CRGB | - | - | Color of Led |
return value
null
void fillpix(CRGB Color)
Set the color of all LEDs
parameter list
| name | type | range | default | description |
| Color | CRGB | - | - | Color of Leds |
return value
null
void clear()
Close all of LEDs
parameter list
null
return value
null