GY-63_MS5611/libraries/AtomicWeight

AtomicWeight

Arduino library for atomic weights.

Description

This library is mainly as a base for educational purposes. Learning the periodic table of elements, the abbreviations and weight. It also provides the number of electrons, neutrons and protons per element.

internal

Table uses compressed weight to save RAM

• store weight as uint16_t, 0..65535
• weight factor = 222.909 = (65535.0 / heaviest element=118)
• error < 0.5%

Interface

#include "AtomicWeight.h"

• PTOE() Constructor (Periodic Table Of Elements)
• uint8_t electrons(uint8_t element) returns the number of electrons of the element.
• uint8_t neutrons(uint8_t element) returns the number of neutrons of the element.
• uint8_t protons(uint8_t element) returns the number of protons of the element.
• float weight(uint8_t element) returns the weight of the element. (error < 0.5%, table uses "weight compression")
• uint8_t find(char * abbreviation) returns the element number.
• char * name(uint8_t element) returns the abbreviation of element.

debug

• float weightFactor() returns weightFactor.

Operation

See examples

Future

must

• improve documentation
• add examples

should

• state table
  • liquid, gas, solid, unknown (2 bits per element) = ~30 bytes
• (short) table of English names
  • which ones ?
• move code to .cpp file
• parameters element should be less than _size

could

• extend unit tests
• function weight("H2O") => 18
  • easier to parse with separator: weight("C6 H6 O6 ")

wont (unless)

• more information?
• Electron bands K L M etc?
  • database needed
• temperatures,
  • melt
  • evaporate
  • 2 bytes per temp 4 x 118 = 476 bytes
  • compression 3 bytes for 2 temps 2x 12 bits = 0..4095 K = 354 bytes