We went to WHY2025 a hackers camp in the Netherlands.
The first time I went was in 1997, with Bigred. Many followed after that. Tyrone, Bigred were also there from our old Crew. Coline joined me several times since 2005.
I joined the Badge team, and was making spacers for the Badges in bulk using my 3D printer. Also made some fancy cases.
CasesSpacers
In case of doubt .. more leds!
Our campsite with 7m Led stringMust have more leds!
Nice weather, good friends. New friends. Booze. Food and Hacking. We visited a lot of talks and enjoyed the music. (And fire)
I worked on: RSS feed on a epaper display, Midi monitor and the MQTT Pong website.
RSS Feed display
While waiting in line for the Badge:
A stone was passed from behind! It was a ping request. We passed it forward, and 15 minutes later a TTL time exceeded stone came from the front of the line. You gotta love those nerds!
Some other stones
The Badge: This should have got much potential .. Many misses, much to learn.
The plan is to hide these in the woods, and children have to find them using a scanner device.
3D printed scanner (model not mine, but changed to hold electronics
Using a ESP32 with bluetooth, using RSSI (strength of signal) I can limit the range of detection.
The order of finding the tags is important, so a hidden tag should not be found when another should be found first.
These tags, hidden in toys, should be placed in a treasure chest. (In order) Then lights and sounds should hint the kids that they have successfully completed the mission.
New version has a beeper on the left. .. sorry .. hayfever
So same detecting but even shorter range ESP is hidden in the Chest.
Some leds or a single blinking one should give hints about the distance of the object.
substitutions:
name: usb-relay
friendly_name: "USB Relay"
default_state: "RESTORE_DEFAULT_OFF"
esphome:
name: xyusb1
friendly_name: xyusb1
esp8266:
board: esp01_1m
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "ndm8xxxxxxxxxxxxxxxxxjlvrggJv3a1BkY="
ota:
- platform: esphome
password: "12cc9xxxxxxxxxxxxxxxxfb6a01e672"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Xyusb1 Fallback Hotspot"
password: "xxxxxxxxxxx"
captive_portal:
time:
- platform: homeassistant
# Blue LED
status_led:
pin:
number: GPIO16
# Relay
switch:
- platform: gpio
id: switch_relay
pin: GPIO5
# Green LED
- platform: gpio
pin: GPIO14
id: green_led
inverted: true # start on
# Switch template to link relay and green LED states
# LED is on when relay is off
- platform: template
id: relay
name: "${friendly_name}"
lambda: |-
if (id(switch_relay).state) {
return true;
} else {
return false;
}
turn_on_action:
- switch.turn_on:
id: green_led
- switch.turn_on:
id: switch_relay
turn_off_action:
- switch.turn_off:
id: green_led
- switch.turn_off:
id: switch_relay
# Button
binary_sensor:
- platform: gpio
id: hardware_button
pin:
number: GPIO04
mode: INPUT_PULLUP
inverted: True
on_press:
- switch.toggle: relay
# WiFi Signal Sensor
sensor:
- platform: wifi_signal
name: "WiFi Status"
update_interval: 60s
# Restart button
button:
- platform: restart
name: "Restart"
Reflashed my USB Volume button and added a LED-Ring.
Example is green and blue.
Funny text on box
What is a termianl assortment? LOL
Wireless Temperature/Humidity sensor for ESPHome.
Wemos D1 mini with deep sleep, voltage monitoring using A0 line. BME280 Temperature/Humidity sensor. And a 18650 battery with TP4065 battery manager. Now 3D print a little case.
Using a bowden tube (PTFE tube 1mm) with a 3d printed holder. (ptfe is very smooth)
This is a test setup. I’ve removed arms and the flute on the bottom picture using AI. Then printed backpicture and top on sticky paper and stuck it on sturdy heavy paper.
I want to make a moving picture which moves our band members when there is sound (music). (Guitar, Harp, Bagpipes and Flute)
