(passedIn)
| 11 | import lcd2004 |
| 12 | |
| 13 | def lcdPrint(passedIn): |
| 14 | |
| 15 | # The PCF8574 has a jumper selectable address: 0x20 - 0x27 |
| 16 | DEFAULT_I2C_ADDR = 0x27 |
| 17 | foundLCD = False |
| 18 | |
| 19 | mess = passedIn |
| 20 | if mess == "": |
| 21 | mess = input("Say what?: ") |
| 22 | |
| 23 | i2c = None |
| 24 | for i2cNo in range(3): |
| 25 | try: |
| 26 | i2c = Pydos_hw.I2C(i2cNo) |
| 27 | except: |
| 28 | pass |
| 29 | if i2c: |
| 30 | if sys.implementation.name.upper() == "CIRCUITPYTHON": |
| 31 | # circuitpython seems to require locking the i2c bus |
| 32 | while not i2c.try_lock(): |
| 33 | pass |
| 34 | |
| 35 | if DEFAULT_I2C_ADDR in i2c.scan(): |
| 36 | foundLCD = True |
| 37 | break |
| 38 | |
| 39 | if sys.implementation.name.upper() == 'CIRCUITPYTHON': |
| 40 | i2c.unlock() |
| 41 | |
| 42 | if not foundLCD: |
| 43 | print("LCD not found at address: ",hex(DEFAULT_I2C_ADDR)) |
| 44 | return |
| 45 | |
| 46 | if sys.implementation.name.upper() == "CIRCUITPYTHON": |
| 47 | |
| 48 | # 2 lines, 16 characters per line |
| 49 | lcd = I2cLcd(i2c, DEFAULT_I2C_ADDR, 2, 16) |
| 50 | |
| 51 | # smiley faces as custom characters |
| 52 | happy = bytearray([0x00,0x0A,0x00,0x04,0x00,0x11,0x0E,0x00]) |
| 53 | heart = bytearray([0x00,0x00,0x0A,0X15,0X11,0X0A,0X04,0X00]) |
| 54 | grin = bytearray([0x00,0x00,0x0A,0x00,0x1F,0x11,0x0E,0x00]) |
| 55 | lcd.custom_char(0, happy) |
| 56 | lcd.custom_char(1, heart) |
| 57 | lcd.custom_char(2, grin) |
| 58 | |
| 59 | else: |
| 60 | lcd=lcd2004.lcd(DEFAULT_I2C_ADDR,i2c) |
| 61 | lcd.lcd_backlight(True) |
| 62 | lcd.lcd_clear() |
| 63 | |
| 64 | if mess == "": |
| 65 | if sys.implementation.name.upper() == "CIRCUITPYTHON": |
| 66 | lcd.backlight_off() |
| 67 | else: |
| 68 | lcd.lcd_backlight(False) |
| 69 | else: |
| 70 |
no test coverage detected