Calculator Module DIY Kit
1
Calculator Module DIY Kit
1.Introduction:
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 CR2032 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(Installed):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.
5.Component Listing:
NO. Component Name
PCB Marker
Parameter
QTY
1 Resistors
R1-R6
10Kohm
6
2 Capacitance
C1,C2
0.1uF 104
2
3 Digital Tube
U1,U2
0.36inch
2
4 ATMEGA328P-PU Chip
U3
DIP-28
1
5 CR2032 Battery
BT1
3V
1
6 CR2032 Battery Holder
BT1
26.5*20.5*3.7mm
1
7 Switch
S1-S17
12*12*7.3mm
17
8 Square Blue Lid
S1-S17
10*10*6mm
1
9 Square Transparent Lid
S1-S17
11.6*11.6*5mm
1
10 Acrylic Sheet
100*92*2.1mm
2
11 Acrylic Sheet
80*10*2.1mm
2
12 Acrylic Sheet
90*10*2.1mm
2
13 Screws
8
14 Nut
4
15 PCB board
90*83*1.6mm
1
Note:Users can complete the installation according to the PCB silk screen and component list.
6.Debugging Steps:
1).Plug in the CR2032 battery,and the digital tube displays CAL 1.5,indicating that the
welding is successful.
2).Press the [C] Clear key to turn it on.
3).The calculator turns itself off after about 20 seconds of inactivity.
7.Application:
Содержание GY20433
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