Resistance Color Code Calculator
Hello Every One
With best regards,
This is my first post on a python project Resistance Color Code Calculator.
Technology Used : Python 3, Tkinter
Software Used : Pycharm
We can calculate the value of the resistance of a resistor from its color code value as given below
let us consider,
'a’ represents the first band of resistor.
‘b’ represents the second band of resistor.
‘c’ represents the third multiplier band of resistor.
‘d’ represents the fourth tolerance band of resistor.
Then the resistance value is given by,
We can implement the above thing in the form of a GUI (Graphical User Interface) using Tkinter library of python which gives styling to the interface as given in the following picture.
The Code of the above GUI is given below
from tkinter import *
import tkinter.messagebox as tmsg
from tkinter import ttk
class Resistor:
def __init__(self,root):
self.root = root
self.root.title("Resistor Color Code Calculator")
self.root.geometry("1350x652+0+0")
self.root.configure(background = "pink")
var1 = IntVar()
var2 = IntVar()
var3 = IntVar()
var4 = StringVar()
var5 = IntVar()
var6 = IntVar()
var7 = IntVar()
var8 = IntVar()
var1.set("")
var2.set("")
var3.set("")
var4.set("")
var5.set("")
var6.set("")
var7.set("")
var8.set("")
var9 = IntVar()
var9.set("")
def Band1_Black():
var1.set(0)
def Band1_Brown():
var1.set(1)
def Band1_Red():
var1.set(2)
def Band1_Orange():
var1.set(3)
def Band1_Yellow():
var1.set(4)
def Band1_Green():
var1.set(5)
def Band1_Blue():
var1.set(6)
def Band1_Violet():
var1.set(7)
def Band1_Gray():
var1.set(8)
def Band1_White():
var1.set(9)
#===============================================================================================================
def Band2_Black():
var2.set(0)
def Band2_Brown():
var2.set(1)
def Band2_Red():
var2.set(2)
def Band2_Orange():
var2.set(3)
def Band2_Yellow():
var2.set(4)
def Band2_Green():
var2.set(5)
def Band2_Blue():
var2.set(6)
def Band2_Violet():
var2.set(7)
def Band2_Gray():
var2.set(8)
def Band2_White():
var2.set(9)
#=============================================================================================================
def Mult_Black():
var3.set(1)
def Mult_Brown():
var3.set(10)
def Mult_Red():
var3.set(100)
def Mult_Orange():
var3.set(1000)
def Mult_Yellow():
var3.set(10000)
def Mult_Green():
var3.set(100000)
def Mult_Blue():
var3.set(1000000)
def Mult_Violet():
var3.set(10000000)
def Mult_Gray():
var3.set(100000000)
def Mult_White():
var3.set(1000000000)
#==============================================================================================================
def Tol_Gold():
var4.set(0.05)
def Tol_Silver():
var4.set(0.1)
def Tol_None():
var4.set(0.2)
#===============================================================================================================
def iReset():
iReset = tmsg.askyesno("Resistor Color Code Calculator","Confirm if you want to exit?")
if iReset > 0:
var1.set("")
var2.set("")
var3.set("")
var4.set("")
var5.set("")
var6.set("")
var7.set("")
var8.set("")
var9.set("")
return
def iExit():
iExit = tmsg.askyesno("Resistor Color Code Calculator","Confirm if you want to reset?")
if iExit > 0:
root.destroy()
return
def CalculateResistor():
var9 = "%d%d" % ((var1.get(),var2.get()))
t = float(var9)
m = float(var3.get())
s = float(var4.get())
if (s == 0.05):
q = (((t*m)/1000)*0.05)
a = (q)
var5.set(str('%.1f'%(a)))
var6.set(str('%.1f'%(t))+ 'K ohm')
var7.set(str('%.1f'%(t - q))+ 'K ohm')
var8.set(str('%.1f'%(t + q))+ 'K ohm')
elif (s == 0.1):
q = (((t*m)/1000)*0.1)
a = (q)
var5.set(str('%.1f'%(a)))
var6.set(str('%.1f'%(t))+ 'K ohm')
var7.set(str('%.1f'%(t - q))+ 'K ohm')
var8.set(str('%.1f'%(t + q))+ 'K ohm')
elif (s == 0.2):
q = (((t*m)/1000)*0.2)
a = (q)
var5.set(str('%.1f'%(a)))
var6.set(str('%.1f'%(t))+ 'K ohm')
var7.set(str('%.1f'%(t - q))+ 'K ohm')
var8.set(str('%.1f'%(t + q))+ 'K ohm')
mainFrame = Frame(self.root,bg="pink")
mainFrame.grid()
TitleFrame = Frame(mainFrame, bd=10, width =1350, padx = 20, relief = RIDGE,bg="pink")
TitleFrame.grid(row=0,column=0,columnspan=2,sticky=W)
self.lblTitle = Label(TitleFrame,font = "arial 40 bold", text = "Resistor Color Code Calculator",padx = 244,bg="pink")
self.lblTitle.grid()
ResistorFrame = Frame(mainFrame, bd=10, width =1350, padx = 20, relief = RIDGE,bg="pink")
ResistorFrame.grid(row=1,column=0,sticky=W)
IndicatorFrame = Frame(mainFrame, bd=10, width =1350, padx = 20, relief = RIDGE,bg="pink")
IndicatorFrame.grid(row=1,column=1,sticky=W)
self.lblTitle = Label(ResistorFrame,font = "arial 13 bold", text = "1st Band",bg="pink")
self.lblTitle.grid(row=0,column=0)
self.lblTitle = Label(ResistorFrame,font = "arial 13 bold", text = "2nd Band",bg="pink")
self.lblTitle.grid(row=0,column=1)
self.lblTitle = Label(ResistorFrame,font = "arial 13 bold", text = "Multiplier",bg="pink")
self.lblTitle.grid(row=0,column=2)
self.lblTitle = Label(ResistorFrame,font = "arial 13 bold", text = "Tolerance",bg="pink")
self.lblTitle.grid(row=0,column=3)
self.black1 = Button(ResistorFrame, width = 17,font = "arial 14 bold", text ="Black", fg="White",bg="black",
command=Band1_Black)
self.black1.grid(row=1,column=0)
self.black2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="0", fg="White", bg="black",
command=Band2_Black)
self.black2.grid(row=1, column=1)
self.black3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="1", fg="White", bg="black",
command=Mult_Black)
self.black3.grid(row=1, column=2)
self.black4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="White", bg="black")
self.black4.grid(row=1, column=3)
#=============================================================================================================
self.brown1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Brown", fg="black", bg="brown",
command=Band1_Brown)
self.brown1.grid(row=2, column=0)
self.brown2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="1", fg="black", bg="brown",
command=Band2_Brown)
self.brown2.grid(row=2, column=1)
self.brown3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="10", fg="black", bg="brown",
command=Mult_Brown)
self.brown3.grid(row=2, column=2)
self.brown4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="brown")
self.brown4.grid(row=2, column=3)
#===============================================================================================================
self.red1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Red", fg="black", bg="red",
command=Band1_Red)
self.red1.grid(row=3, column=0)
self.red2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="2", fg="black", bg="red",
command=Band2_Red)
self.red2.grid(row=3, column=1)
self.red3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="100", fg="black",bg="red",
command=Mult_Red)
self.red3.grid(row=3, column=2)
self.red4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="red")
self.red4.grid(row=3, column=3)
#===============================================================================================================
self.orange1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Orange", fg="black", bg="orange",
command=Band1_Orange)
self.orange1.grid(row=4, column=0)
self.orange2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="3", fg="black", bg="orange",
command=Band2_Orange)
self.orange2.grid(row=4, column=1)
self.orange3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="1000", fg="black", bg="orange",
command=Mult_Orange)
self.orange3.grid(row=4, column=2)
self.orange4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="orange")
self.orange4.grid(row=4, column=3)
#==============================================================================================================
self.yellow1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Yellow", fg="black", bg="yellow",
command=Band1_Yellow)
self.yellow1.grid(row=5, column=0)
self.yellow2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="4", fg="black", bg="yellow",
command=Band2_Yellow)
self.yellow2.grid(row=5, column=1)
self.yellow3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="10000", fg="black", bg="yellow",
command=Mult_Yellow)
self.yellow3.grid(row=5, column=2)
self.yellow4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="yellow")
self.yellow4.grid(row=5, column=3)
#==============================================================================================================
self.green1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Green", fg="black", bg="green",
command=Band1_Green)
self.green1.grid(row=6, column=0)
self.green2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="5", fg="black", bg="green",
command=Band2_Green)
self.green2.grid(row=6, column=1)
self.green3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="100000", fg="black", bg="green",
command=Mult_Green)
self.green3.grid(row=6, column=2)
self.green4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="green")
self.green4.grid(row=6, column=3)
#==============================================================================================================
self.blue1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Blue", fg="black", bg="blue",
command=Band1_Blue)
self.blue1.grid(row=7, column=0)
self.blue2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="6", fg="black", bg="blue",
command=Band2_Blue)
self.blue2.grid(row=7, column=1)
self.blue3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="1000000", fg="black", bg="blue",
command=Mult_Blue)
self.blue3.grid(row=7, column=2)
self.blue4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="blue")
self.blue4.grid(row=7, column=3)
#=============================================================================================================
self.violet1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Violet", fg="black", bg="violet",
command=Band1_Violet)
self.violet1.grid(row=8, column=0)
self.violet2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="7", fg="black", bg="violet",
command=Band2_Violet)
self.violet2.grid(row=8, column=1)
self.violet3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="10000000", fg="black", bg="violet",
command=Mult_Violet)
self.violet3.grid(row=8, column=2)
self.violet4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="violet")
self.violet4.grid(row=8, column=3)
#=============================================================================================================
self.gray1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Gray", fg="black", bg="gray",
command=Band1_Gray)
self.gray1.grid(row=9, column=0)
self.gray2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="8", fg="black", bg="gray",
command=Band2_Gray)
self.gray2.grid(row=9, column=1)
self.gray3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="100000000", fg="black", bg="gray",
command=Mult_Gray)
self.gray3.grid(row=9, column=2)
self.gray4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="gray")
self.gray4.grid(row=9, column=3)
#=============================================================================================================
self.white1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="White", fg="black", bg="white",
command=Band1_White)
self.white1.grid(row=10, column=0)
self.white2 = Button(ResistorFrame, width=17, font="arial 14 bold", text="9", fg="black", bg="white",
command=Band2_White)
self.white2.grid(row=10, column=1)
self.white3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="1000000000", fg="black", bg="white",
command=Mult_White)
self.white3.grid(row=10, column=2)
self.white4 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="white")
self.white4.grid(row=10, column=3)
#=============================================================================================================
self.gold1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Gold", fg="black", bg="gold",
command=Tol_Gold)
self.gold1.grid(row=11, column=0)
self.gold2 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="gold")
self.gold2.grid(row=11, column=1)
self.gold3 = Button(ResistorFrame, width=17, font="arial 14 bold", text="0.1", fg="black", bg="gold")
self.gold3.grid(row=11, column=2)
self.gold4 = Button(ResistorFrame, width=17, font="arial 14 bold", text="5%", fg="black", bg="gold",
command=Tol_Gold)
self.gold4.grid(row=11, column=3)
#=============================================================================================================
self.Silver1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="Silver", fg="black", bg="Silver",
command=Tol_Silver)
self.Silver1.grid(row=12, column=0)
self.Silver2 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="Silver")
self.Silver2.grid(row=12, column=1)
self.Silver3 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="Silver")
self.Silver3.grid(row=12, column=2)
self.Silver4 = Button(ResistorFrame, width=17, font="arial 14 bold", text="10%", fg="black", bg="Silver",
command=Tol_Silver)
self.Silver4.grid(row=12, column=3)
#=============================================================================================================
self.None1 = Button(ResistorFrame, width=17, font="arial 14 bold", text="None", fg="black", bg="white",
command=Tol_None)
self.None1.grid(row=13, column=0)
self.None2 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="white")
self.None2.grid(row=13, column=1)
self.None3 = Button(ResistorFrame, width=17, font="arial 14 bold", fg="black", bg="white")
self.None3.grid(row=13, column=2)
self.None4 = Button(ResistorFrame, width=17, font="arial 14 bold", text="20%", fg="black", bg="white",
command=Tol_None)
self.None4.grid(row=13, column=3)
#=================================Indicator Frame ============================================================
self.lblFirst = Label(IndicatorFrame,font = "arial 15 bold", text = "1st Band",bg="pink")
self.lblFirst.grid(row=0,column=0,sticky=W,pady=10,columnspan=3)
self.txtFirst = Entry(IndicatorFrame,font = "arial 15 bold",width = 16,textvariable=var1)
self.txtFirst.grid(row=0,column=1,pady=10,columnspan=3)
self.lblSecond = Label(IndicatorFrame,font = "arial 15 bold", text = "2nd Band",bg="pink")
self.lblSecond.grid(row=1,column=0,sticky=W,pady=10,columnspan=3)
self.txtSecond = Entry(IndicatorFrame,font = "arial 15 bold",width = 16,textvariable=var2)
self.txtSecond.grid(row=1,column=1,pady=10,columnspan=3)
self.lblMult = Label(IndicatorFrame,font = "arial 15 bold", text = "Multiplier",bg="pink")
self.lblMult.grid(row=2,column=0,sticky=W,pady=10,columnspan=3)
self.txtMult = Entry(IndicatorFrame,font = "arial 15 bold",width = 16,textvariable=var3)
self.txtMult.grid(row=2,column=1,pady=10,columnspan=3)
self.lblDivideBy1000 = Label(IndicatorFrame,font = "arial 15 bold", text = "Div.By1000",bg="pink")
self.lblDivideBy1000.grid(row=4,column=0,sticky=W,pady=10,columnspan=3)
self.txtDivideBy1000 = Entry(IndicatorFrame,font = "arial 15 bold",width = 16,textvariable=var5)
self.txtDivideBy1000.grid(row=4,column=1,pady=10,columnspan=3)
self.lblTolerance = Label(IndicatorFrame, font="arial 15 bold", text="Tolerance", bg="pink")
self.lblTolerance.grid(row=3, column=0, sticky=W,pady=10,columnspan=3)
self.txtTolerance = Entry(IndicatorFrame, font="arial 15 bold", width=16,textvariable=var4)
self.txtTolerance.grid(row=3, column=1,pady=10,columnspan=3)
self.lblResistorVal = Label(IndicatorFrame, font="arial 15 bold", text="Resistor Val", bg="pink")
self.lblResistorVal.grid(row=5, column=0, sticky=W,pady=10,columnspan=3)
self.txtResistorVal = Entry(IndicatorFrame, font="arial 15 bold", width=16,textvariable=var6)
self.txtResistorVal.grid(row=5, column=1,pady=10,columnspan=3)
self.lblMinRange = Label(IndicatorFrame, font="arial 15 bold", text="Min.Range", bg="pink")
self.lblMinRange.grid(row=6, column=0, sticky=W,pady=10,columnspan=3)
self.txtMinRange = Entry(IndicatorFrame, font="arial 15 bold", width=16,textvariable=var7)
self.txtMinRange.grid(row=6, column=1,pady=10,columnspan=3)
self.lblMaxRange = Label(IndicatorFrame, font="arial 15 bold", text="Max.Range", bg="pink")
self.lblMaxRange.grid(row=7, column=0, sticky=W,pady=10)
self.txtMaxRange = Entry(IndicatorFrame, font="arial 15 bold", width=16,textvariable=var8)
self.txtMaxRange.grid(row=7, column=1,pady=10,columnspan=3)
Calc = Button(IndicatorFrame,font="arial 18 bold", width=8,text="Calculate",height=3,command=CalculateResistor)
Calc.grid(row=8, column=0,pady=10)
Reset = Button(IndicatorFrame,font="arial 18 bold", width=8,text="Reset",height=3,command=iReset)
Reset.grid(row=8, column=1,pady=10)
Exit = Button(IndicatorFrame,font="arial 18 bold", width=8,text="Exit",height=3,command=iExit)
Exit.grid(row=8, column=2,pady=10,sticky = W)
if __name__ == '__main__':
root = Tk()
application = Resistor(root)
root.mainloop()
