HackerDojo Wiki - User contributions [en]

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2024-12-11T03:33:26Z

Beau-K6eau: defa1337 EXPERIMENTAL

<strike><big>GRANTED</big></strike>

== Readers ==

<pre>
LAB0 00:13:00:00:22:2f 192.168.1.100 AVEA-00130000222F Sat Jun 12 00:02:45 2010
</pre>

== fobs ==

=== ENABLED ===
* 0012514585

=== DISABLED ===
* 0013473798

USB-RS232-WE-1800-BT 5.0 FTDI

2024-09-21T00:16:56Z

Beau-K6eau: 5 volt USB/Serial cables

Electronics Labs has a number of different USB to Serial converters. There are several of these particular FTDI USB-A to bare wires with 5 volt power and signaling.

'''DO NOT USE THESE''' with most newer Arduino, ESP8266, ESP32 or other such microcontrollers as they may or may not be 5 volt tolerant and generally are designed for 3.3 volts.

[[User:Beau-K6eau|Beau-K6eau]] ([[User talk:Beau-K6eau|talk]]) 17:16, 20 September 2024 (PDT)

[[File:USB-RS232-WE-color-pin-outs.png]]

[[File:USB-RS232-WE-Cable-Signal-Descriptions.png]]

[[File:USB-RS232-WE-Converter-Cable-Circuit-Schematic.png]]

Sauce: https://ftdichip.com/wp-content/uploads/2023/07/DS_USB_RS232_CABLES.pdf

File:USB-RS232-WE-Converter-Cable-Circuit-Schematic.png

2024-09-21T00:13:27Z

Beau-K6eau:

File:USB-RS232-WE-Cable-Signal-Descriptions.png

2024-09-21T00:13:17Z

Beau-K6eau:

2024-01-09T21:29:03Z

Beau-K6eau: /* Tuesday January 2nd, 2024 */

QSV

2024-01-09T20:26:19Z

Beau-K6eau: /* EchoLink */

Amateur Radio in and around Mt. <code>foo</code> <strike>View</strike> along with related topics.

== EchoLink ==

http://echolink.org/

https://github.com/sm0svx/svxlink

=== Raspbery Pi 4 Debian 12 (Bookworm) ===

* raspi-config advanced change audio to Pulse Audio
* set group to svxlink for /usr/bin/.config
* set write permission g+w for group to ""
* set Rx1 to NONE
* set Tx1 to appropriate hardware device index

== Lawn Tennis ==

[[File:Lawn-Tennis-Vertical-Sync.png|800px]]

== QSV ==

<big><b>Continuing on in <i>2024</i>, 1st Monday and 3rd Friday of the month. QTH Olympus Cafe, 12:34</b></big>

=== Historical Announcement ===

<pre>
1 Announcing QSV Lunch this Friday March 18 at 12:34pm.
2
3 QSV?
4 QSV are Hams who Hack -- The intersection of Amateur Radio and
5 Hacker/Maker/STEM culture, in Mountain View, California.
6
7 Don't all hams hack?
8 Yes, probably so!
9 But this defines our culture and focuses our topics.
10
11 Where?
12 at the outdoor picnic tables of
13 Olympus Caffe & Bakery, Mountain View.
14 -- https://cafeolympus.com/
15 -- https://www.openstreetmap.org/node/1306273777
16 We sit towards the corner of the block (Castro at Evelyn).
17
18 Why There?
19 * outdoor tables
20 * you can come and go at will, be early, be late
21 * easy to move around and chat with different people
22 * order as much or as little as you like:
23 -- free water
24 -- coffee and tea
25 -- turkish pastries and european/american desserts
26 -- wide variety of breakfasts, lunches, and dinners
27 https://cafeolympus.com/breakfast
28 https://cafeolympus.com/lunch-%26-dinner
29 -- including gyro/kebap/kofte/souvlaki
30 -- German beers and Biergarten Speisen (Wurst, Schnitzel,usw)
31 https://dasbierhauz.com/burger-%26-sausage
32 * order and pay at the counter, take a number,
33 and they bring it out to you. So no waiting on the check.
34 * right next to light rail and loud caltrains and VTA transit center
35
36 How Often?
37 Our current schedule is
38 -- First Mondays
39 and
40 -- Third Fridays
41 always at 12:34pm.
42
43 Keep me informed?
44 Subscribe at https://groups.io/g/qsv
45 if you want to receive updates.
46
47 Questions? Ask W6REK or K6EAU.
</pre>

== ham_string ==

point to point wireless backbone for regional mesh

Done right would be AI6KG & W6MRR concurring an excellent solution.

VHF/UHF/900-915MHz/2.4GHz/5.8GHz/10GHz/60GHz

== Links ==

http://9amtalk.net/

https://labitat.dk/wiki/WSPR

https://www.noisebridge.net/wiki/HAM

== TBD ==
*Balloons
*Licensing
*Events
*SDR

LED Dot Matrix Display

2024-01-02T21:46:08Z

Beau-K6eau: /* Osram PDSP 1881 */ Pin Out

== Osram PDSP 1881 ==

8 digit 5x7 dot matrix capable of standard alphanumeric upper and lower case display. This version "1881" is yellow, also available in red and green.

Also PDSP 188x, i.e., 1880, 1881, 1882, 1883, 1884

[https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2162/PDSP1880-84_2006-03-30.pdf Datasheet PDSP 1880-1884]

=== Pin Out ===

<pre>
1 Reset
2 Flash
3 A0
4 A1
5 A2
6 A3
7
8
9
10 A4
11 Clock Select
12 Clock in/out
13 Write
14 Chip Enable
15 Vcc (5 volt)
16 Ground
17
18 Ground
19 Read
20 D0
21 D1
22
23
24
25 D2
26 D3
27 D4
28 D5
29 D6
30 D7
</pre>

[https://hackaday.io/project/179959-retro-alphanumeric-led-displays-libraries hackaday.io project]

LED Dot Matrix Display

2024-01-02T21:41:40Z

Beau-K6eau:

LED Dot Matrix Display

2024-01-02T21:38:18Z

Beau-K6eau: Created page with "== Osram PDSP 1881 == 8 digit 5x7 dot matrix capable of standard alphanumeric upper and lower case display. This version "1881" is yellow, also available in red and green. Also PDSP 188x, i.e., 1880, 1881, 1882, 1883, 1884 [https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2162/PDSP1880-84_2006-03-30.pdf Datasheet PDSP 1880-1884] [https://hackaday.io/project/179959-retro-alphanumeric-led-displays-libraries/log/193210-pdsp-1881-16x4-display/ hackaday.io pro..."

File:37C3-board-blaze.jpg

2023-12-31T07:48:55Z

Beau-K6eau:

User:Beau-K6eau

2023-12-31T07:47:26Z

Beau-K6eau:

Hello world

#h1 37C3

[[File:37C3-bench.jpg|800px]]

[[File:APA102.jpg|800px]]

[[File:37C3-board-prep.jpg|800px]]

[[File:37C3-board-blaze.jpg|800px]]

[[File:NUBcore-kit.jpg|800px]]

Hacker Dojo 37C3

<h1>Getting to Blinky</h1>
<h2>MicroPython & ESP8266</h2>

<h3>code</h3>
<pre>
from machine import Pin, ADC
from time import sleep_ms

print('Hacker Dojo ESP8266 booting...')

# MicroPython Getting Startred Reference
# http://docs.micropython.org/en/latest/esp8266/quickref.html#pins-and-gpio

# AI Thinker EASP8266 Module Pin Out
# https://i0.wp.com/randomnerdtutorials.com/wp-content/uploads/2019/05/ESP8266-ESP-12E-chip-pinout-gpio-pin.png

# LinkNode D1 Arduino Uno form factor
# https://learn.linksprite.com/linkspriteio/linknode/linknode-d1/

# TODO: Feature
# https://wiki.seeedstudio.com/Grove-LED_String_Light/

p0 = Pin(0, Pin.IN, Pin.PULL_UP) # Button

# https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/overview
p2 = Pin(2, Pin.IN) # PiR

p12 = Pin(12, Pin.OUT, value=1) # GREEN
p13 = Pin(13, Pin.OUT, value=1) # RED
p14 = Pin(14, Pin.OUT, value=1) # BLUE

a0 = ADC(0) # Light Sensor https://arduinogetstarted.com/tutorials/arduino-light-sensor

def button_handler(pin):
print("button")
blink()

def pir_handler(pin):
print("PiR")
motion_trigger()

# https://randomnerdtutorials.com/micropython-interrupts-esp32-esp8266/
p0.irq(trigger=Pin.IRQ_FALLING, handler=button_handler)
p2.irq(trigger=Pin.IRQ_RISING, handler=pir_handler)

def motion_trigger():
for i in range(0, 10):
p13.value(not p13.value())
sleep_ms(100)

def blink():
p12.value(0)
sleep_ms(200)
p12.value(1)
p13.value(0)
sleep_ms(200)
p13.value(1)
p14.value(0)
sleep_ms(200)
p14.value(1)

blink()

def do_connect():
import network
wlan = network.WLAN(network.STA_IF)
wlan.active(True)
if not wlan.isconnected():
print('connecting to network...')
wlan.connect('Hacker Dojo Free', 'hackerdojo')
while not wlan.isconnected():
pass
print('network config:', wlan.ifconfig())

# do_connect()
</pre>

Made with a breadboard and random bits found in the electronics lab. 37C3 hack'n with Brick Breakers.

User:Beau-K6eau

2023-12-31T07:46:19Z