User:Beau-K6eau

Hello world

37C3

LED_Dot_Matrix_Display

Hacker Dojo 37C3

Getting to Blinky

MicroPython & ESP8266

code

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()

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

MQ-2 "Alcohol" Sensor

from machine import Pin, ADC
from time import sleep_ms
from neopixel import NeoPixel

led_pin = Pin(5, Pin.OUT, value=0)
neo_pin = Pin(4, Pin.OUT)
adc_pin = ADC(0)
led_pin.on()
np = NeoPixel(neo_pin, 1)
np[0] = (0, 22, 0)
np.write()

def main():
  a, b, c = 0, 0, 0
  while 1:
    a = adc_pin.read()
    b = int((a - 200) / 4.0)
    if b < 0: b = 0
    if b > 255: b = 255
    if b > 0 and b < 100:
      c = int(b / 2.0)
    else:
      c = 0
    print(a, b, c)
    np[0] = (b, c, 0)
    np.write()
    sleep_ms(200)

main()

Lights up RGB on Blunk Board based on gas sensor value, sensitive to flammable gases and demonstrates well with isopropyl vapor.

Log

Thursday April 4th, 2024

• PRUSA MINI
  • Loaded Grey PLA
  • Printing Knobs 4x (uProber)
  • Printing Smaller Box (uProber)
• Prusa i3 MK3
  • Printing Pieces (6) (uProber)

Sunday January 21st, 2024

• #hacker-volunteer
• Series 1 Pro 10672, extruder, heat bead and all axis tested
• Swapped pi monitor to 24"
• general clean and sort table tops
• fpga class & robo kids
• configuring dump1090 w/mapping
  • FlightAware 219009 on-line
• Assembly of supercon blue badges

Thursday January 18th, 2024

• Picking up IC-706 from QSV bench
  • TODO: replace with QB 25
• Taking out random box of trash
• Powered Mo Bot, some issues, parked next to shelf

Tuesday January 16th, 2024

• Meeting with John on Microprobing class
• 2M Station test with N6NFI/R
• Installed 120 GB SATA test stick to X1 Carbon (L1)
• Sean & Charlie drop-in for drone repair

Thursday January 11th, 2024

• Type A Series 1 Pro testing
• SATA Drive Pickup (Foster City)
• Evening remote visit via "Mo Furious"

Tuesday January 9th, 2024

• 8am arrival
• 1.5 5.5 hours on compiling/install svxlink for EchoLink on rPi4 & ThinkPar Arch
  • Raspberry Pi issue with pulseaudio initialization
  • Arch config in process, sticking with pi route
  • TODO: Create NAT for TCP 5200 as well as UDP 5198 and 5199 to the Pi
• install SSD in T420 ThinkPad, loaded with Debian 12, apps and config
• install SSD in T430 ThinkPad, loaded with Debian 12, apps and config

Thursday January 4th, 2024

• replicator
  • backing up thumb data & gqrx to /data
  • updating arch packages
• dumped Pixel Blaze v2 firmware bin for backup
• Added headers to S3 dev board and flashed to MicroPython v1.22

Tuesday January 2nd, 2024

• Getting to "HOW" and blinky with Osram PDSP 1881 & S3
• Re-attaching APA102 strip with Pixel Blaze to whiteboard

Monday January 1st, 2024

• QSV Lunch 12:34
• V3561182 Radiosonde recovery

Saturday December 30th, 2023

• Initial Pixel Blaze v2 APA102 bring up
• Basic blinky hack'n with Drone Racing in Main Room

Friday December 29th, 2023

• Pixieboard DUO debugging
  • 6 boards evaluated, red & green
• Balloon Tracker tested
• 2nd bench nice and clean/clear as well

Sunday December 26th, 2023

• Relay sorting, couple dozen 24v & assorted AMFs
• 3D printer bench clean up