lcd_display_raspberry

Do you have a Raspberry PI? Do you have a I2C 20x4 display bought for a couple of bucks? Do you have a short wave receiver and a 1$ USB sound dongle?

Tune your short wave receiver on 10.100 MHz USB, and receive the weather forecast on the display!

connection schema

\|/  SWR antenna
 |       +------------------+   audio    +---------------+   +--------------+      RTTY                  +------------------+
 +-------| SDR/SWR receiver |----------->| USB soundcard |-->| raspberry PI |--> minimodem -->read.py -->| I2C 20x4 display |
         +------------------+ out    mic +---------------+   +--------------+   (software)    (software) +------------------+

requirements

1. raspberry PI, raspbian, I2c modules on
2. I2c display
3. python + smbus
4. minimodem (sudo apt install minimodem)

memory map of the display

20x4

80	81	82	83	84	85	86	87	88	89	8A	8B	8C	8D	8E	8F	90	91	92	93
C0	C1	C2	C3	C4	C5	C6	C7	C8	C9	CA	CB	CC	CD	CE	CF	D0	D1	D2	D3
94	95	96	97	98	99	9A	9B	9C	9D	9E	9F	A0	A1	A2	A3	A4	A5	A6	A7
D4	D5	D6	D7	D8	D9	DA	DB	DC	DD	DE	DF	E0	E1	E2	E3	E4	E5	E6	E7