Bought E-Ink display

3D Printed in Sep 2024

• First freecad moeling

  • First model

• ESP8266(D1 mini) + PN532 Case

  • Version 1 bottom case
  • Version 2 bottom case add pilar
  • Version 2 lid
  • Version 2 with screw hole
  • Version 2 re-draw
  • Version 4 with screw hole, pilars, bed(for buzzer)
  • Version 5 lid with screw pilars
  • Version 6
  • Version 7 last version of lid

• IR Transmitter and receiver case

Bought 3D Printer

I just bought 3d printer from aliexpress

Unboxing

Behind story

I have been using APM since 2006. the first was Jennifer (for java). and Scouter (similar to jennifer x-view)

And the year 2020, I meet elastic apm (half setup). I finished the setup from Python django monitoring, to Vue RUM(with sourcemap).

In the year 2023, I tried Sentry for the first time. It seems new and is specialized for error tracking. I have set up for NestJS(backend), React(web frontend) and ReactNative. It was not that bad with error tracking.

Tested ESP8266 with RC522 NFC/RFID Reader

RC522 is NFC/RFID reader, and it can be integrated into ESPHOME

• esphome configuration

  yaml

  # Example configuration entry
  http_request:
  
  output:
  - platform: esp8266_pwm
    pin: 5
    id: my_buzzer
  
  rtttl:
    output: my_buzzer
    gain: 0.1
  
  spi:
    clk_pin: 14
    mosi_pin: 13
    miso_pin: 12
  
  rc522_spi:
    cs_pin: 15
    on_tag:
      then:
        - http_request.send:
            method: POST
            url: !secret nfc_tag_call_url
            verify_ssl: false
            headers:
              Content-Type: application/json
            json:
              tag: !lambda
                return x;
        - rtttl.play:
            # rtttl: 'siren:d=8,o=5,b=100:d,e,d,e,d,e,d,e'
            rtttl: 'two_short:d=4,o=5,b=100:16e6,16e6'
  
  binary_sensor:
    - platform: rc522
      uid: !secret my_room_card
      name: "My Room Card"

• Two separate function

Beelink Mini S

I wasn’t satisfied by Pico PC so,

I bought another mini PC. the Beelink Mini S

Here are some specs.

• CPU : Intel N95
• Memory : 8GB
• SSD : 256GB
• Display Output : HDMI x 2
• USB : USB-A x 4
• Ethernet : 1 GbE x 1
• Wifi : Wifi 5

Better than Pico PC

• Silent : most important Pico PC doesn’t include PWM controlled FAN. (what I mostly disappointed about Pico PC)
• Slightly faster. N95 is slightly faster than J series

Weaknesses?