{
 "metadata": {
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.8.10"
  },
  "orig_nbformat": 4,
  "kernelspec": {
   "name": "python3",
   "display_name": "Python 3.8.10 64-bit"
  },
  "interpreter": {
   "hash": "31f2aee4e71d21fbe5cf8b01ff0e069b9275f58929596ceb00d14d90e3e16cd6"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2,
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [
    {
     "output_type": "stream",
     "name": "stdout",
     "text": [
      "--------------------------------------------\nIdeal resistor: 0.0132R\nPower loss: 0.33W\n"
     ]
    },
    {
     "output_type": "error",
     "ename": "IndexError",
     "evalue": "Replacement index 0 out of range for positional args tuple",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mIndexError\u001b[0m                                Traceback (most recent call last)",
      "\u001b[0;32m/tmp/ipykernel_112179/3645271640.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     14\u001b[0m     \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Ideal resistor: {}R\"\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mideal_resistor\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     15\u001b[0m     \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Power loss: {}W\"\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mpower_loss\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 16\u001b[0;31m     \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Resolution: {}A\"\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mformat\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     17\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;31mIndexError\u001b[0m: Replacement index 0 out of range for positional args tuple"
     ]
    }
   ],
   "source": [
    "max_sense_voltage = 3.3\n",
    "max_output_current = 5.0\n",
    "adc_resolution = 4096\n",
    "\n",
    "max_acceptable_power_loss = 0.1\n",
    "\n",
    "amp_ratios = [50,100,200]\n",
    "\n",
    "for ratio in amp_ratios:\n",
    "\n",
    "    ideal_resistor = max_sense_voltage/ratio / max_output_current\n",
    "    power_loss = ideal_resistor * max_output_current**2\n",
    "    resolution = \n",
    "    print(\"--------------------------------------------\")\n",
    "    print(\"Ideal resistor: {}R\".format(ideal_resistor))\n",
    "    print(\"Power loss: {}W\".format(power_loss))\n",
    "    print(\"Resolution: {}A\".format())\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "output_type": "stream",
     "name": "stdout",
     "text": [
      "Length: 1.1136363636363635\nWraps:  16.880069721867685\n"
     ]
    }
   ],
   "source": [
    "import math\n",
    "\n",
    "bat_diameter = 21\n",
    "wrap_length = bat_diameter * math.pi / 1000\n",
    "heating_power = 2\n",
    "voltage = 3.5\n",
    "wire_resistance = 5.5 # per meter\n",
    "\n",
    "current = heating_power / voltage\n",
    "resistance = voltage / current\n",
    "length = resistance / wire_resistance\n",
    "wraps = length / wrap_length\n",
    "\n",
    "print(\"Length: {}\".format(length))\n",
    "print(\"Wraps:  {}\".format(wraps))\n",
    "\n",
    "\n",
    "\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
 ]
}