This is a DIY calculator KIT soldering module which can perform additions, subtractions, multiplications and divisions.
Features:
1) It uses through hole components and is easy to solder.
2) It does not require a computer; the calculator kit is pre-programmed.
3) It is powered by a single CR2032 battery and can be carried anywhere without being tethered.
4) It can be turned on instantly, at any time, and is easy to use.
5) When not in use for a long time, it will automatically go to sleep mode, saving energy.
Specifications:
- Product Name: Calculator DIY Soldering Module
- Battery: CR2032 (Battery Not Included)
- Digital Precision: 6 digits
- Soldering Method: Through hole component soldering
- Work Temperature: -25℃~85℃
- Work Humidity: 5%~95%RH
- Size: 90 x 91 x 18mm
Precautions for soldering 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 polarity) capacitors, resistors, battery holders, then solder the switch, and finally solder the digital tube.
2) Use diagonal pliers to cut the excess leads on solder side of PCB (as short as possible).
WARNING
