arduclockmometer

Clock and thermometer based on arduino and max7219 led panel

Dependencies / Libraries

• MD_Parola
• MD_MAX72XX
• DS3231
• Adafruit Sensor
• DHT

Could be installed by Tools -> Manage Libraries and then search by name, or by downloading .zip from github and unzipping inside arduino's libraries folder.

More sprites

Space invader:

const uint8_t F_INVADER = 2;
const uint8_t W_INVADER = 12;
static const uint8_t PROGMEM invader[F_INVADER * W_INVADER] =
{
  0x00, 0x70, 0x10, 0x7d, 0xb6, 0x3c, 0x3c, 0xb6, 0x7d, 0x10, 0x70, 0x00,
  0x00, 0x1c, 0x28, 0x7d, 0x36, 0x3c, 0x3c, 0x36, 0x7d, 0x28, 0x1c, 0x00
};

Mushroom:

const uint8_t F_MUSHROOM = 2;
const uint8_t W_MUSHROOM = 11;
static const uint8_t PROGMEM mushroom[F_MUSHROOM * W_MUSHROOM] =
{
  0x00, 0x1c, 0x62, 0x91, 0xb1, 0x91, 0xb1, 0x91, 0x62, 0x1c, 0x00,
  0x00, 0x1c, 0x62, 0x91, 0x91, 0x91, 0x91, 0x91, 0x62, 0x1c, 0x00
};

Troubleshooting

• Text seems to be reversed and blocks independent. Change HARDWARE_TYPE variable to FC16_HW as MAX7219 is of this type:

#define HARDWARE_TYPE MD_MAX72XX::FC16_HW

• Permission denied when uploading sketch:

avrdude: ser_open(): can't open device "/dev/ttyUSB0": Permission denied
Problem uploading to board.  See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

Solution: sudo chmod a+rw /dev/ttyUSB0