LichtKrant

Project LichtKrant
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Een korte inleidende tekst
Status	Initializing
Contact	bertrik
Last Update	2019-12-13

Found this lichtkrant on the revspace free stuff table.

It consists of a processor board and a LED board.

The processor board has a 8052, a flash chip, battery, 32768 Hz crystal, 40 MHz crystal, Altera Max chip. It appears the Altera chip drives two 245 chips which in turn drive the signal to the connector between the two boards.

Connector pinout J1:

• 1: pin A8 of IC6 (245)
• 2: GND?
• 3: pin A1
• 4: GND
• 5: pin A2
• 6:
• 7: pin A3
• 8:
• 9: pin A4
• 10:
• 11: pin A5
• 12:
• 13: pin A6
• 14:
• 15: pin A7
• 16:
• 17: pin A8
• 18:
• 19: 5V
• 20: 5V

So it basically looks like a 9 bit bus. Levels on the bus are 5V (so can we drive it with an ESP?)