DIY MCU Digital Tube Calculator Soldering Kit

€8,35
€8,35
€8,35
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The DIY MCU Digital Tube Calculator Soldering Kit is an engaging project that combines mathematics and electronics. This kit allows users to build a functional digital calculator capable of basic arithmetic operations and color code resistance calculations. Ideal for soldering practice and electronic training, it caters to DIY enthusiasts and learners alike.

Parameters

  • Product Name: DIY MCU Digital Tube Calculator Soldering Kit
  • Power Supply: USB 5V or 3V button cell battery (Note: USB and button battery must not be powered simultaneously)
  • Working Voltage: >2.8V
  • Operating Current:
    • Working State: 9mA (six "8" displayed)
    • Sleep Mode: <1mA
  • PCB Dimensions: 113 x 78 mm (1-2 mm error possible)
  • Product Size: 90 mm x 128 mm x 15.5 mm
  • Weight:
    • With enclosure: 151 g
    • Without enclosure: 77 g

Features

  1. Multi-Function Design: The kit supports basic arithmetic (addition, subtraction, multiplication, division) and color code resistance calculations.
  2. User-Friendly Operation: Max 6-digit calculations with scientific notation for larger results; supports both 4-band and 5-band resistors.
  3. Power Management: Switch between work and sleep mode to conserve battery power.
  4. Precision Display: 6-digit precision provides accurate results in a compact form.
  5. Error Handling: Displays error messages for invalid inputs or calculations exceeding limits.

Usage Instructions

  1. Power Mode Switching:

    • Default is working mode upon powering on.
    • Short press the "C" key to switch back to working mode.
    • Long press the "C" key for over 1 second to enter sleep mode.

  2. Function Switching:

    • Long press the “-/mode” key to switch between math calculations and resistance conversion.

  3. Calculating:

    • Input numbers using the keys and operators, then press “_” to calculate.
    • Use the “C” key to clear.

  4. Resistance Conversion:

    • Sequentially input colors for the resistor, then press “=” for calculation.

Component List

  • 1x 105 capacitor
  • 1x Button cell holder (1220)
  • 17x Tactile switches
  • 1x USB charging port
  • 2x Dual 7-segment displays
  • 1x STC microcontroller (DIP28)
  • 1x IC socket (28P)
  • 1x CR2032 battery
  • 17x Keycaps
  • 1x Enclosure
  • 1x Screws
  • 1x PCB
  • 1x Key sticker
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