TheDIY MCU Digital Tube Calculator Soldering Kitis 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
- Multi-Function Design: The kit supports basic arithmetic (addition, subtraction, multiplication, division) and color code resistance calculations.
- User-Friendly Operation: Max 6-digit calculations with scientific notation for larger results; supports both 4-band and 5-band resistors.
- Power Management: Switch between work and sleep mode to conserve battery power.
- Precision Display: 6-digit precision provides accurate results in a compact form.
- Error Handling: Displays error messages for invalid inputs or calculations exceeding limits.
Usage Instructions
-
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.
-
Function Switching:
- Long press the -/mode key to switch between math calculations and resistance conversion.
-
Calculating:
- Input numbers using the keys and operators, then press _ to calculate.
- Use the C key to clear.
-
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
Unconditional Satisfaction Guarantee
