Skip to content

Latest commit

 

History

History
231 lines (195 loc) · 7.39 KB

README.md

File metadata and controls

231 lines (195 loc) · 7.39 KB
Raw

Reichelt Elektronik Web Scraping Module

Copyright 2024 Jannik Kreucher

A Python module for extracting data from Reichelt Elektronik, a popular German electronics distributor.

Table of Contents

Introduction

ReicheltAPI is a lightweight Python library for scraping data from Reichelt Elektronik using BeautifulSoup4. This module aims to assist in generating Bills of Materials (BOMs) and price estimates within KiCad by retrieving information directly from the Reichelt website.

Standalone Usage

If you just want to query information about a Reichelt part, you can use the module in standalone mode. The command syntax is simple:

python3 reichelt.py "<ReicheltPartNo>" <attribute>

Make sure to enclose the part number in quotes if it contains spaces. The <attribute> can be one of the following:

Attribute Function
all everything as json for you to mess around
part shows parsed part number, should be the same as "PartName"
name Reichelt product name
link link to the item
datasheet link to the pdf datasheet
1 price of one item
10 price per item when buying 10
100 price when ordering 100
1000 price when ordering 1000

Examples:

~$ python3 reichelt.py "Z84C00-06MHZ" name  # returns name of item
Z80 Microprozessor, 6 MHz, DIP40
~$ python3 reichelt.py "Z84C00-06MHZ" 1  # return unit price in Euro
7.25

Python Quick Start

Here's a simple script to get you started:

import reichelt
import json

part = "74HC 00"

# create API object
api = reichelt.Reichelt()
result = api.search_part(part)

# print info
print(json.dumps(result, indent=4))

# download datasheet
api.get_datasheet(result["datasheet"], part+".pdf")

Example Output:

{
    "part": "74HC 00",
    "name": "4-fold, 2 input NAND gates, 2 ... 6 V, DIL-14",
    "link": "https://www.reichelt.com/de/en/4-fold-2-input-nand-gates-2--6-v-dil-14-74hc-00-p3119.html?&trstct=pos_1&nbc=1&SID=9433fcf4a460e776488c64328e79f537447333d0260dc8fc87708",
    "1": 0.24,
    "10": null,
    "100": null,
    "1000": null,
    "datasheet": "https://www.reichelt.com/index.html?ACTION=7&LA=3&OPEN=0&INDEX=0&FILENAME=A200%2FDS_NXP_74HC00.pdf",
    "General": {
        "family": "74HC",
        "Model": "NAND-Gate",
        "Type": "4 inputs",
        "Design": "4-Elemente",
        "Mounting form": "DIP-14"
    },
    "Other": {
        "Temperature range": "-40 ... +85"
    },
    "Electrical values": {
        "Supply voltage": "2.0 ... 6.0 VDC",
        "Input voltage": "0 ... 6.0 VDC",
        "Performance": "500 mW",
        "Input voltage ViH": "4.2 VDC",
        "Input voltage ViL": "0.5 VDC"
    },
    "Manufacturer specifications": {
        "Package weight": "0.001 kg",
        "RoHS": "conform"
    },
    "categories": [
        "Home",
        "Components",
        "Active components",
        "ICs and controllers",
        "Digital ICs",
        "Logic ICs"
    ]
}

Creating the object

To begin scraping, you need to create an instance of the Reichelt object:

import reichelt
foo = reichelt.Reichelt()

Ensure that the reichelt.py file is in the same directory as your script.

Searching with a string

You can search for a part using the get_search_results(keyword) function, which mimics a browser search on the Reichelt homepage but returns the results as a dictionary.

result = foo.get_search_results("Z80 CPU")

Example Output

[
    {
        "part": "EZ80F91AZA50EK",
        "name": "8-bit microcontroller, eZ80AcclaimPlus!, LQFP-144",
        "link": "https://www.reichelt.com/de/en/8-bit-microcontroller-ez80acclaimplus-lqfp-144-ez80f91aza50ek-p376411.html?&trstct=pos_0&nbc=1&SID=968601949b80683845a58c8f12e7374d7421209b4623f36305e19",
        "1": 17.7,
        "10": null,
        "100": null,
        "1000": null
    },
    {
        "part": "EZ80F92AZ020EG",
        "name": "8-bit microcontroller, eZ80AcclaimPlus!, LQFP-144",
        "link": "https://www.reichelt.com/de/en/8-bit-microcontroller-ez80acclaimplus-lqfp-144-ez80f92az020eg-p376413.html?&trstct=pos_1&nbc=1&SID=968601949b80683845a58c8f12e7374d7421209b4623f36305e19",
        "1": 13.95,
        "10": null,
        "100": null,
        "1000": null
    },
...

Retrieving Detailed Information

To retrieve detailed information about a specific item, use the get_search_results(keyword) function. Pass the URL of the product page to this function.

product = foo.get_part_information("https://www.reichelt.de/z80-microprozessor-10-mhz-dip40-z84c00-10mhz-p31823.html?&trstct=pos_2&nbc=1")

Or, you can directly use the link obtained from get_search_results:

product = foo.get_part_information(result[0]["link"])
{
    "datasheet": "https://www.reichelt.com/index.html?ACTION=7&LA=3&OPEN=0&INDEX=0&FILENAME=A200%2FPS0270.pdf",
    "General": {
        "Type": "8-Bit Mikrocontroller",
        "Technology": "eZ80",
        "Mounting form": "LQFP-144",
        "family": "EZ80F91"
    },
    "Specials": {
        "CPU clock": "50 MHz"
    },
    "Implementation": {
        "Memory": "256",
        "RAM": "8 kByte",
        "I/O-Pins": "32",
        "16-bit Timer": "4"
    },
    "Interfaces": {
        "I²C": "1",
        "UART": "2"
    },
    "Electrical values": {
        "Supply voltage": "3..3.6 VDC"
    },
    "Other": {
        "Temperature range": "-40..+105"
    },
    "Manufacturer specifications": {
        "Manufacturer": "ZILOG",
        "Factory number": "EZ80F91AZA50EK",
        "Package weight": "0.014 kg",
        "RoHS": "conform"
    },
    "categories": [
        "Home",
        "Components",
        "Active components",
        "ICs and controllers",
        "Digital ICs",
        "8-bit microcontrollers"
    ]
}

But I want it in one line

If you already know the exact part number, you can combine both search and detail retrieval using the search_part(part) function:

product = reichelt.Reichelt().search_part("74HC 00")

Downloading Datasheets

The module also allows you to download the product's datasheet directly from Reichelt. The URL is extracted by the get_part_information function, and downloading is as simple as:

foo.get_datasheet(product["datasheet"], "foo.pdf")

This will save the datasheet as foo.pdf in your current directory.