KIT CALCOLATRICE ELETTRONICA CON CONTENITORE

KIT CALCOLATRICE ELETTRONICA CON CONTENITORE

1.Description:

It is a calculator DIY soldering module.It can perform addition,subtraction,multiplication,division,negative numbers,and decimal point operations.

2.Feature:

1).It uses in-line components and is easy to solder.

2).It doesn't require a computer,the calculator kit is pre-programmed.

3).It is powered by a single CR2025 battery and can be carried anywhere without being tethered.

4).It can be turned on instantly turned on at any time,and easy to use.

5).When not in use for a long time,it can automatically sleep,saving energy.

3.Parameter:

1).Product Name:Calculator DIY Soldering Module

2).Battery:CR2032

3).Digital Precision:6 digits

4).Welding Method:in-line component welding

5).Work Temperature:-25℃~85℃

6).Work Humidity:5%~95%RH

7).Size:90*91*18mm

 4.Precautions for Welding and Installation:

1).The components are soldered on the front of the board (screen printing surface),from low to high,that is,first low-solder components,such as mega328 (pay attention to the IC direction),capacitors,resistors,battery holders,then solder the switch,and finally solder the digital tube .

2).Use diagonal pliers to cut the excess pins as short as possible.