design-calcs.ipynb

{
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   "outputs": [],
   "source": [
    "from IPython.display import display, Markdown, Latex\n",
    "from fractions import Fraction\n",
    "import pandas as pd\n",
    "\n",
    "\n",
    "def getResistances(switchPositions, res0, res1, res2, res4, res8):\n",
    "    def getResistance(switchPos):\n",
    "        res = res0\n",
    "        if switchPos & 0x01: res += res1\n",
    "        if switchPos & 0x02: res += res2\n",
    "        if switchPos & 0x04: res += res4\n",
    "        if switchPos & 0x08: res += res8\n",
    "        return res\n",
    "    return [getResistance(switchPos) for switchPos in range(switchPositions)]\n",
    "\n",
    "\n",
    "def calculate(title, r1, switchPositions, res0, res1, res2, res4, res8):\n",
    "    r2Resistances = getResistances(switchPositions, res0, res1, res2, res4, res8)\n",
    "    r2MidPoint = int((max(r2Resistances) + min(r2Resistances)) / 2)\n",
    "    ratios = list(map(lambda r2: Fraction(r2, r1), r2Resistances))\n",
    "\n",
    "    #tableData = \\\n",
    "    #    '| Switch position | R2 resistance | R2 / R1 ratio |\\n' + \\\n",
    "    #    '| --------------- | ------------- | ------------- |\\n' + \\\n",
    "    #    '\\n'.join(['| {} | {} | {} |'.format(i, r2Resistances[i], ratios[i]) for i in range(switchPositions)])\n",
    "\n",
    "    markdownStr = '''\n",
    "    # {0}\n",
    "    * R1 resistance = {1}\n",
    "    * R2 mid point = {2}\n",
    "    '''.strip().format(title, r1, r2MidPoint)\n",
    "    display(Markdown(markdownStr))\n",
    "\n",
    "    data = [[i, r2Resistances[i], '{} / {}'.format(r2Resistances[i], r1), ratios[i]] for i in range(switchPositions)]\n",
    "    columns=['Switch position', 'R2 resistance', 'R2 / R1', 'R2 / R1 ratio']\n",
    "    display(pd.DataFrame(data, columns=columns))"
   ]
  },
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   "metadata": {
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   "outputs": [
    {
     "data": {
      "text/markdown": [
       "# Standard loadout - 10 position switch\n",
       "    * R1 resistance = 5000\n",
       "    * R2 mid point = 5500"
      ],
      "text/plain": [
       "<IPython.core.display.Markdown object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
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     "data": {
      "text/html": [
       "<div>\n",
       "<style scoped>\n",
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       "        vertical-align: middle;\n",
       "    }\n",
       "\n",
       "    .dataframe tbody tr th {\n",
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       "    }\n",
       "\n",
       "    .dataframe thead th {\n",
       "        text-align: right;\n",
       "    }\n",
       "</style>\n",
       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Switch position</th>\n",
       "      <th>R2 resistance</th>\n",
       "      <th>R2 / R1</th>\n",
       "      <th>R2 / R1 ratio</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>0</td>\n",
       "      <td>1000</td>\n",
       "      <td>1000 / 5000</td>\n",
       "      <td>1/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>1</td>\n",
       "      <td>2000</td>\n",
       "      <td>2000 / 5000</td>\n",
       "      <td>2/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>2</td>\n",
       "      <td>3000</td>\n",
       "      <td>3000 / 5000</td>\n",
       "      <td>3/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>3</td>\n",
       "      <td>4000</td>\n",
       "      <td>4000 / 5000</td>\n",
       "      <td>4/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>4</td>\n",
       "      <td>5000</td>\n",
       "      <td>5000 / 5000</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>5</td>\n",
       "      <td>6000</td>\n",
       "      <td>6000 / 5000</td>\n",
       "      <td>6/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>6</td>\n",
       "      <td>7000</td>\n",
       "      <td>7000 / 5000</td>\n",
       "      <td>7/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>7</td>\n",
       "      <td>8000</td>\n",
       "      <td>8000 / 5000</td>\n",
       "      <td>8/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>8</td>\n",
       "      <td>9000</td>\n",
       "      <td>9000 / 5000</td>\n",
       "      <td>9/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>9</td>\n",
       "      <td>10000</td>\n",
       "      <td>10000 / 5000</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "   Switch position  R2 resistance       R2 / R1 R2 / R1 ratio\n",
       "0                0           1000   1000 / 5000           1/5\n",
       "1                1           2000   2000 / 5000           2/5\n",
       "2                2           3000   3000 / 5000           3/5\n",
       "3                3           4000   4000 / 5000           4/5\n",
       "4                4           5000   5000 / 5000             1\n",
       "5                5           6000   6000 / 5000           6/5\n",
       "6                6           7000   7000 / 5000           7/5\n",
       "7                7           8000   8000 / 5000           8/5\n",
       "8                8           9000   9000 / 5000           9/5\n",
       "9                9          10000  10000 / 5000             2"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "calculate('Standard loadout - 10 position switch', 5000, 10, 1000, 1000, 2000, 4000, 8000)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/markdown": [
       "# Standard loadout - 16 position switch\n",
       "    * R1 resistance = 5000\n",
       "    * R2 mid point = 8500"
      ],
      "text/plain": [
       "<IPython.core.display.Markdown object>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    },
    {
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       "\n",
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       "<table border=\"1\" class=\"dataframe\">\n",
       "  <thead>\n",
       "    <tr style=\"text-align: right;\">\n",
       "      <th></th>\n",
       "      <th>Switch position</th>\n",
       "      <th>R2 resistance</th>\n",
       "      <th>R2 / R1</th>\n",
       "      <th>R2 / R1 ratio</th>\n",
       "    </tr>\n",
       "  </thead>\n",
       "  <tbody>\n",
       "    <tr>\n",
       "      <th>0</th>\n",
       "      <td>0</td>\n",
       "      <td>1000</td>\n",
       "      <td>1000 / 5000</td>\n",
       "      <td>1/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>1</th>\n",
       "      <td>1</td>\n",
       "      <td>2000</td>\n",
       "      <td>2000 / 5000</td>\n",
       "      <td>2/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>2</th>\n",
       "      <td>2</td>\n",
       "      <td>3000</td>\n",
       "      <td>3000 / 5000</td>\n",
       "      <td>3/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>3</th>\n",
       "      <td>3</td>\n",
       "      <td>4000</td>\n",
       "      <td>4000 / 5000</td>\n",
       "      <td>4/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>4</th>\n",
       "      <td>4</td>\n",
       "      <td>5000</td>\n",
       "      <td>5000 / 5000</td>\n",
       "      <td>1</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>5</th>\n",
       "      <td>5</td>\n",
       "      <td>6000</td>\n",
       "      <td>6000 / 5000</td>\n",
       "      <td>6/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>6</th>\n",
       "      <td>6</td>\n",
       "      <td>7000</td>\n",
       "      <td>7000 / 5000</td>\n",
       "      <td>7/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>7</th>\n",
       "      <td>7</td>\n",
       "      <td>8000</td>\n",
       "      <td>8000 / 5000</td>\n",
       "      <td>8/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>8</th>\n",
       "      <td>8</td>\n",
       "      <td>9000</td>\n",
       "      <td>9000 / 5000</td>\n",
       "      <td>9/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>9</th>\n",
       "      <td>9</td>\n",
       "      <td>10000</td>\n",
       "      <td>10000 / 5000</td>\n",
       "      <td>2</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>10</th>\n",
       "      <td>10</td>\n",
       "      <td>11000</td>\n",
       "      <td>11000 / 5000</td>\n",
       "      <td>11/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>11</th>\n",
       "      <td>11</td>\n",
       "      <td>12000</td>\n",
       "      <td>12000 / 5000</td>\n",
       "      <td>12/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>12</th>\n",
       "      <td>12</td>\n",
       "      <td>13000</td>\n",
       "      <td>13000 / 5000</td>\n",
       "      <td>13/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>13</th>\n",
       "      <td>13</td>\n",
       "      <td>14000</td>\n",
       "      <td>14000 / 5000</td>\n",
       "      <td>14/5</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>14</th>\n",
       "      <td>14</td>\n",
       "      <td>15000</td>\n",
       "      <td>15000 / 5000</td>\n",
       "      <td>3</td>\n",
       "    </tr>\n",
       "    <tr>\n",
       "      <th>15</th>\n",
       "      <td>15</td>\n",
       "      <td>16000</td>\n",
       "      <td>16000 / 5000</td>\n",
       "      <td>16/5</td>\n",
       "    </tr>\n",
       "  </tbody>\n",
       "</table>\n",
       "</div>"
      ],
      "text/plain": [
       "    Switch position  R2 resistance       R2 / R1 R2 / R1 ratio\n",
       "0                 0           1000   1000 / 5000           1/5\n",
       "1                 1           2000   2000 / 5000           2/5\n",
       "2                 2           3000   3000 / 5000           3/5\n",
       "3                 3           4000   4000 / 5000           4/5\n",
       "4                 4           5000   5000 / 5000             1\n",
       "5                 5           6000   6000 / 5000           6/5\n",
       "6                 6           7000   7000 / 5000           7/5\n",
       "7                 7           8000   8000 / 5000           8/5\n",
       "8                 8           9000   9000 / 5000           9/5\n",
       "9                 9          10000  10000 / 5000             2\n",
       "10               10          11000  11000 / 5000          11/5\n",
       "11               11          12000  12000 / 5000          12/5\n",
       "12               12          13000  13000 / 5000          13/5\n",
       "13               13          14000  14000 / 5000          14/5\n",
       "14               14          15000  15000 / 5000             3\n",
       "15               15          16000  16000 / 5000          16/5"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "calculate('Standard loadout - 16 position switch', 5000, 16, 1000, 1000, 2000, 4000, 8000)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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