LichtKrant: Difference between revisions
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Found this lichtkrant on the revspace free stuff table. | 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: | Connector pinout J1: | ||
* 1: pin A8 of IC6 (245) | * 1: pin A8 of IC6 (245) | ||
* 2: ? | * 2: GND? | ||
* 3: pin A1 | * 3: pin A1 | ||
* 4: GND | * 4: GND | ||
| Line 28: | Line 33: | ||
* 17: pin A8 | * 17: pin A8 | ||
* 18: | * 18: | ||
* 19: | * 19: 5V | ||
* 20: | * 20: 5V | ||
So it basically looks like a 9 bit bus. | So it basically looks like a 9 bit bus. | ||
Levels on the bus are 5V (so can we drive it with an ESP?) | Levels on the bus are 5V (so can we drive it with an ESP?) | ||
Revision as of 19:36, 13 December 2019
| Project LichtKrant | |
|---|---|
| 350px | |
| 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?)