1.Introduction:
  CAI-150 is Multi-functional Calculator Electronic Soldering DIY Kit. It is powered by two CR2032 button batteries, integrates five different computing functions, and uses a traditional LCD1602 display screen to display the calculation process and results in real-time.

  It can not only be used as a DIY electronic kit that allows you to better understand the circuit and learn how to soldering, but also as a very suitable experimental workbench tool.

2.Feature:
   Basic Arithmetic Calculator.
   4-Color or 5-Color Ring Resistance Calculator.
   Calculate the working series resistor for LED.
   Decimal to Hexadecimal.Hexadecimal to Decimal.
   Arithmetic Square Root Calculator.
   Classic LCD1602 LCD Display Screen.
   4*5 Transparent Matrix Keyboard.
   Automatic power off without operation within 30 seconds.
   Cool DIY Soldering Project.

3.Parameter:
   Work voltage: DC 6V
   Display Color: Blue/White Screen
   Power Type: CR2032*2 Battery (included)
   Work Temperature: -40℃~85℃
   Work Humidity: 5%~95%RH
   Size(Installed): 126x86x36mm

4. More About this kit:
    Function-1: Basic Decimal Arithmetic Calculator with decimal point and minus sign.
    Function-2: 4-Color or 5-Color Ring Resistance Calculator. Input the color of the metal film  
    Function-3: Calculate Series Resistor for LED.
    Function-4: Decimal to Hexadecimal and Hexadecimal to Decimal.
    Function-5: Arithmetic Square Root Calculator.
    Automatic shutdown: Automatic power off without operation within 30 seconds.
    After installation, it can be powered and used directly by two RC2032 batteries (included).

5. Installation Steps & User Manual: