Bb-leds: Difference between revisions

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Being connected to led tickers donated from ]LAG( (2* 3 rows)
 
Has pro-mini attached for use as 'level converter'.
Monochrome LED tickers donated from ]LAG[
* 2 boards * 3 text lines * 7 rows * 90 columns
* Boards have been reverse-engineered (TODO document on wiki)
* One board is missing the PNP transistor for one of the seven rows
 
== beaglebone ==
 
2022-12-31 Flashed with a basic debian bullseye system.
* hostname: <code>bb-leds</code>
* login: <code>debian</code>
* password: <code>777</code>
 
This beaglebone is missing its mini-usb port but can be powered via the P9 header using included cable (TODO insert photo)
 
== level shifter ==
 
A 3.3V to 5V level shifter is needed (3 signals per board, can probably be optimized to 4 signals total for both boards if they're driven synchronously). As a temporary hack a beestore pro mini from [[User:flok]] has been programmed to act as a 6-ch level shifter with pinout:
* PC0 ("A0") → PB0 ("D8")
* PC1 ("A1") → PB1 ("D9")
* PC2 ("A2") → PB2 ("D10")
* PC3 ("A3") → PB3 ("D11")
* PC4 ("A4/SCL") → PB4 ("D12")
* PC5 ("A5/SDA") → PB5 ("D13")

Revision as of 18:44, 1 January 2023

BB-leds
NoPicture.png
Participants
Skills Electronics
Status Getting parts
Niche Hardware
Purpose Fun
Tool No
Location shelves next to studio
Cost
Tool category General

BB-leds Property "Tool Image" (as page type) with input value "File:{{{Picture}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. {{{Picture}}} {{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost::{{{Cost}}} | }}


Monochrome LED tickers donated from ]LAG[

  • 2 boards * 3 text lines * 7 rows * 90 columns
  • Boards have been reverse-engineered (TODO document on wiki)
  • One board is missing the PNP transistor for one of the seven rows

beaglebone

2022-12-31 Flashed with a basic debian bullseye system.

  • hostname: bb-leds
  • login: debian
  • password: 777

This beaglebone is missing its mini-usb port but can be powered via the P9 header using included cable (TODO insert photo)

level shifter

A 3.3V to 5V level shifter is needed (3 signals per board, can probably be optimized to 4 signals total for both boards if they're driven synchronously). As a temporary hack a beestore pro mini from User:flok has been programmed to act as a 6-ch level shifter with pinout:

  • PC0 ("A0") → PB0 ("D8")
  • PC1 ("A1") → PB1 ("D9")
  • PC2 ("A2") → PB2 ("D10")
  • PC3 ("A3") → PB3 ("D11")
  • PC4 ("A4/SCL") → PB4 ("D12")
  • PC5 ("A5/SDA") → PB5 ("D13")