name: CR2450
description: CR2450 coin cell battery holder, through hole
datasheet: https://www.mouser.de/datasheet/2/215/053-745375.pdf
# AliExpress: https://www.aliexpress.com/item/32339026573.html

pinout:
  BAT+: 1
  BAT-: 2

properties:
  power: BAT+
  ground: BAT-
    
schematic:
  symbol: ic # connector makes weird stuff
  top: BAT+
  bottom: BAT- 
  
housing:
  pattern: custom
  bodyWidth: 29.35
  bodyLength: 26.75
  height: 9.50
  silkscreen: M 14.675,-5.4 14.675,5.4 10.936,5.4 10.283,6.687 8.946,8.597 7.297,10.246 5.388,11.583 3.275,12.568 1.023,13.172 -1.3,13.375 -3.623,13.172 -5.875,12.568 -7.987,11.583 -9.897,10.246 -11.546,8.597 -12.883,6.687 -13.868,4.575 -14.472,2.323 -14.675,0.0 -14.472,-2.323 -13.868,-4.575 -12.883,-6.688 -11.546,-8.597 -9.897,-10.246 -7.988,-11.583 -5.875,-12.568 -3.623,-13.172 -1.3,-13.375 1.023,-13.172 3.275,-12.568 5.388,-11.583 7.297,-10.246 8.946,-8.597 10.283,-6.688 10.936,-5.4 14.675,-5.4 
  holeDiameter: 1.3
  padDiameter: 1.7
  padPosition: 13.455, 0, -6.565, 0 # 29.35 / 2 - 1.22, 29.35 / 2 - 1.22 - 20.02

# ruby script to draw form
# START = Math.asin((10.80 / 2) / (26.75 / 2)) / (2 * Math::PI) * 360 # 23.81
# ANGLE = 10
# angles = []
# angles << START
# (360 / ANGLE).times do |i|
#   angle = ANGLE * i
#   next if angle < START or angle > 360 - START
#   angles << angle
# end
# angles << 360 - START
# DIA = 26.75
# RADIUS = DIA / 2
# OFFSET = 29.35 / 2 - RADIUS
# 
# print("M ")
# print("#{29.35 / 2},#{10.80 / -2} ")
# print("#{29.35 / 2},#{10.80 / 2} ")
# angles.each do |angle|
# print("#{(Math.cos(angle / 360.0 * 2 * Math::PI) * RADIUS - OFFSET).round(3)},#{(Math.sin(angle / 360.0 * 2 * Math::PI) * RADIUS).round(3)} ")
# end
# print("#{29.35 / 2},#{10.80 / -2} ")
# puts