Crc calculator

Lua module for CRC-32 calculation implemented in C.Tested with Lua 5.1, 5.2 and 5.3.Also included is a pure Lua implementation of the same API, using APIlocal crc32 = require 'crc32'crc32.crc32 = function (crc_in, data)crc_in is input CRC. It can be either a Lua number, or a string.If string is used, it should be 4 bytes in big endian order.If string shorter than 4 bytes, then CRC is left padded with zeros.data is the input data to apply to CRC, as a Lua string.returns updated CRC. If crc_in is number, then returns number.If crc_in is string, then return as string, 4 bytes in big endian order.crc32.newcrc32 = function ()returns a stateful CRC-32 calculator object (userdata).It is useful for streaming CRC calculation, as it keep the currentCRC as a native uint32_t between calls, reducing conversion overhead.crc32.version = stringcrc32.newcrc32 APIlocal c = crc32.newcrc32()c.update = function (self, data)data is the input data to apply to CRC, as a Lua string.returns selfc.reset = function (self)Resets the current CRC to 0.returns selfc.tonumber = function (self)returns current CRC as Lua numberc.tostring = function (self)returns current CRC as string, 4 bytes in big endian order.c.tohex = function (self)returns current CRC as 8 character hex encoded string.

This app is a collection of basic electronic calculators. It is suitable for hobbyist, electronic engineers or professionals.You can buy the PRO feature to unlock more features.Basic tools• Resistor color code• Inductor color code• Resistor SMD marking & EIA-96• dBm, dbW, dBuV converter• Resistors in series• Resistors in parallel• Two resistors in ratio• Voltage divider• Ohm's law• Y-Δ converter• L, C reactance• Complex number operation• RC charging time constant• RC filter• RL filter• LC circuit• 555 monostable• 555 astable• Wheatstone bridge• Trace width calculator• Battery capacity• Operational amplifier• LED calculator• RMS calculator• Range calculator• Temperature conversion• BJT bias voltage• Voltage regulator• Shunt regulator• Length converter• Limit 10 combinations of component valuesDigital Tools• Number converter• Logic gates• DAC R-2R• Analog-to-digital• 7-segment display• Minimization of boolean function• Half adder & full adder• Synchronous counter up to 6 states• Cyclic redundancy check CRC-8, CRC-16, CRC-32• Hamming codeElectronics resources• SI unit prefix• Physical quantities• Circuit symbol• ASCII table• 74xx series• CMOS 40xx series• Pinouts• C programming language• Python language• Common linux command for Raspberry Pi• Resistivity table• Permeability table• Permittivity table• Ampacity table• AWG table• Standard wire guage (SWG) table• World plug• EDA software• Flip-flop• SMD marking • FormulasFeatures in PRO version only• No Ads• No limitation of component values• Selectable 1%,5%,10%,20% of values• Complex matrix • Pi-pad attenuator• T-pad attenuator• Coil inductance• Poles & zeros calculatorNote :1. For those who need support please email to the designated email.Do NOT use either the feedback area to write questions, it is not appropriate and that is not guaranteed that can read them.All trade names mentioned in this app or the other documentation provided by this app are trademarks or registered trademarks of their respective holder. This app is not related or affiliated in any way these companies.

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