Comment créer votre propre carte de visite PCB
Overview: Business cards are often used when conducting business-related activities but in this era, traditional paper business cards simply are not enough in terms of attracting the attention of other parties or partners. This article, by Technologie FS, will teach you how to make a modern, practical Carte de visite PCB which will make you stand out from other competitors.
Foreword
Ce que vous apprendrez de ce projet :
- Le processus de fabrication d'une simple carte de visite PCB
- Le processus de fabrication de high-end PCB business cards with NFC (Near Field Communication) functionality
Outils et compétences nécessaires
Outils essentiels :
- Fer à souder
- Outil de reprise à air chaud
- Pâte à souder
- Flux de soudure
- Fil de soudure
- Pinces à épiler
- Pince à épiler en croix
- Nettoyant pour PCB
- Cotons-tiges
- Cure-dents
Outils optionnels：
- Aspirateur de fumée
- Verre orné
- Téléphone avec NFC
- Puce NFC 1kb
Compétences requises :
- Compétences en soudure SMD
Nomenclature :
- Carte de circuit imprimé
- Condensateur 220 nF
- Résistance de 47Ω
- LED
Simple Printed Circuit Board Business Card Manufacturing Process
Making the PCB schematics
Although other Outils de conception de PCB may be used, EasyEDA is recommended by us to draw the PCB schematics as it has a built-in simulator for signal measurements. You can also find the required circuit schematics of the components in the EasyEDA library.
- Import the desired pattern into layer 22 “bPlace” and it will appear on the silkscreen of the PCB, above the black solder mask.
- Introduce light on layer 16 “Bottom”, which will be seen as copper traces covered by the black solder mask.
PCB Business Card Template Design
Étant donné que vos informations personnelles (nom, téléphone, etc.) doivent être enregistrées en haut du panneau, vous devrez personnaliser une partie du plan de masse et entrer les informations que vous devez afficher sur la couche 29 "tStop". Cette couche est le masque de soudure qui contrôle le haut. Les superpositions de texte sur les couches supérieure et "tStop" peuvent améliorer l'aspect de vos cartes de visite PCB.
Précautions pour les antennes inductives
Les ondes radio ne peuvent pas traverser la carte de circuit imprimé, donc lors de la conception de l'antenne, il ne doit pas y avoir de feuilles de cuivre au-dessus et en dessous. La méthode correcte est la suivante :
Lorsqu'il y a du cuivre au-dessus de l'antenne, le plan de masse du PCB bloque le lecteur, et l'énergie ne peut pas être transmise entre les antennes des étiquettes NFC, comme le montre la figure suivante :
Precautions for assembly of business card components
Before proceeding with PCB assembly, you need to know the rules of Orientation des composants du PCB. To make your PCB business card more beautiful, you can place the components on the bottom of the PCB board and place the LED on the bulb filament. If you’re making an NFC-enabled business card, you’ll need to connect wires to the NFC IC.
Generating Gerber files
Gerber files are used by the PCB industry to “describe” PCB images and are required whether you are making your own Carte PCBA DIY or outsourcing the fabrication to a professional turnkey PCBA assembly company, such as FS Technology. After completing the schematic diagram, you can click the “convert” button in EasyEDA to convert the schematic diagram into a PCB design or if you are using Eagle, you can export Gerber files by using the built-in CAM processor.
Ordering your PCB board
If you want a high-quality PCB business card, you can send your order to FS Technology as we have the most advanced equipment, a highly-trained technical team and the cheapest price. As professional PCB manufacturing experts in China, we recommend the following designs for your custom board:
- Nombre de couches : 2 couches
- PCB thickness: 1.0 mm
- Size: 50×80 mm
- Traitement de surface : HASL
- Cuivre Poids : 1oz
Installation des composants
The purpose of a PCBA board is to connect the different components through the “lines” or traces on the bare board to achieve different functions, primarily electrical conductivity between components, so Assemblage de PCB is an essential part of completing the circuit. For this, you will need to solder the Composants SMD to the PCB board, then use the programmer to write the code into the microcontroller and finally do a Inspection de l'assemblage des PCB.
Emballage des cartes de visite des PCB
You can use foam double-sided tape to seal the edge of your assembled PCBA board by printing a mask to then put on the foam double-sided tape. Subsequently, you can cut off any excess tape to complete your creative PCB business card.
Carte de visite PCB avec NFC
Introduction à la technologie NFC
Qu'est-ce que le NFC ?
NFC, also known as Near Field Communication, is a contactless identification and interconnection technology (similar to Bluetooth PCB) which enables your mobile devices and consumer electronics to communicate within a range of < 10 cm. In recent years, devices used in popular mobile payment, identity authentication, transportation card recharge, etc all have been relying on NFC.
Comment fonctionne la technologie NFC ?
The NFC working mode is divided into two modes, passive and active mode, but this article will only describe the active mode. When the signal-sending device sends data to the target device, it must generate a radio frequency field, which can then use the electromagnetic induction between the two loop antennas to charge the passive target (tag), as shown in the figure:
Fabrication de puces NFC
Exigences relatives aux puces :
- Petit boîtier SMD
- Une capacité de stockage adéquate
- Embedded energy harvesting module
If you use a printed circuit board as a business card, the NFC chip is at its heart and although the choice of the core can be varied, this article will recommend NXP’s NTAG NT3H1101 IC. Many electronics enthusiasts have programming abilities, they can do Programmation des circuits intégrés by themselves to get more functions.
NTAG i2c is the latest passive TAG chip with an I2C interface released by NXP, which is an agent of the Dalian Dapinjia group. It is widely used in household appliances, consumer electronics, wearable technology, home automation and other fields as it provides both contactless and contact interfaces as shown:
Calculer l'inductance de l'antenne
In order for the PCB business card to communicate and power up, we need to add an antenna to the NFC tag. The antenna design of the NFC chip is relatively simple, as shown below:
Explication des icônes dans l'image ci-dessus :
- Voc: Magnetic field-induced open circuit voltage
- Ra : Résistance équivalente
- La : Inductance équivalente
- Rs : résistance équivalente en série
- Cs : Capacité d'accord équivalente en série
Lorsque l'émetteur détecte un champ magnétique, une tension en circuit ouvert Voc apparaît à ses bornes.
La somme des résistances série Ra et Rs constitue le modèle équivalent du circuit composé du circuit intégré NFC et de son antenne cadre, comme le montre la figure suivante :
La résistance Rs du circuit intégré NFC forme un circuit de résonance RLC avec la résistance Ra de l'antenne et la résistance intégrée de l'antenne. la capacité Cs avec l'inductance La de l'antenne.
La formule de fréquence du circuit résonnant RLC est présentée dans la figure :
Resonant frequency formula parameters explanation:
- F : fréquence de résonance, unité : Hz
- L : Inductance équivalente, unité : H
- C : Capacité équivalente, unité : F
Exemple : En supposant que la fréquence du NFC est de 13,56 MHz et que la capacité d'accord est de 50 pF, introduisez-la dans la formule pour obtenir l'inductance L :
Calcul d'une antenne rectangulaire
Only by obeying the geometric constraints, we can add a specific inductance antenna to the PCB board. Antennas with different geometries require different formulas to support them. In order to facilitate the explanation, FS Technology uses a relatively simple rectangular antenna to design PCB business cards, as shown in the following figure:
Explication des unités dans le diagramme ci-dessus :
- A0 & B0: Overall size of the antenna
- Aavg & Bavg: Average size of the antenna
- T: Track thickness
- W : Largeur de la voie
- G : Ecart entre les voies
- Nant : Nombre de tours
- D : Diamètre équivalent de la piste
L'interprétation de la formule de Lant est la suivante :
Créer la bibliothèque Eagle
Si vous pensez que la conception de l'antenne est fastidieuse, vous pouvez copier l'antenne rectangulaire open source fournie par NXP pour concevoir l'antenne, puis modifier la position du connecteur.
Solder the NFC chip onto the PCB visiting card
Soldering the PCB components is a relatively important step to any complete PCB product but whether it is before or after soldering, Nettoyage des PCB is an essential preliminary step. After cleaning is completed, Flux de PCB needs to be prepared in advance. Flux can act as a temporary glue by applying it to the IC package with a toothpick, and when the flux is added, you can use tweezers to hold the circuit board components in place. Then, use a new toothpick to take a small amount of solder paste and place it on the pins of the components. Both flux and solder paste is commonly used when it comes to soldering SMD components as these techniques are much more accurate compared to standard through-hole soldering. Remember to always control the amount of solder paste used as overusing solder paste is a common problem with many hobbyists new to soldering and it can cause court-circuit sur la carte de circuit imprimé. The final step of the soldering process is to use a hot air rework tool to melt the solder paste and solder the IC’s pins to the circuit tracks. With the use of a hot air rework tool, it eliminates the need for a traditional soldering iron which can be a bit more tricky to solder such miniature components with, especially by hand. After this process, it is always recommended to visually check the connectivity of each component to ensure that there are no solder bridges or misalignments of components. A microscope may be useful for smaller components. To enhance the look of your PCB visiting card, you can use a pre-prepared soldering iron to remove the excess flux in addition to Q-tips and isopropyl alcohol for cleaning. Resistors and LEDs operate in almost the same way and can be soldered with the above steps. Overall, soldering the NFC IC by hand is by far the hardest step in this project and even the slightest mistake can lead to a short circuit. If mistakes are made during this process, it is recommended that you know some skills of dessoudage de composants de PCB as it can help reduce losses in the case of any mistakes. Similar to many other skills, constant practice of SMD soldering is the best way to improve your soldering techniques and could be a very helpful skill when working on other projects involving SMD components.
NFC chip IC programming
- NFC Tools for Android: Find the settings menu on your Android device and open the NFC settings.
- iOS NFC Tool: The NFC tool on your iOS device (iPad, iPhone, etc) will start automatically. Launch the NFC tool, find the “Write” button, click “Add Record”, select “URL” as the record, enter the URL you want the NFC tool to transmit, click the “OK” button and then enter the NFC tag on the “Write” page. When the dynamic icon is displayed, hold the phone close to the business card and the LED on the business card should light up. When the icon shows “Writing completed”, your NFC PCB business card is complete.
Blog sur les projets électroniques DIY
Arduino UNO Interrupt Timer Le Timer est une fonction intégrée dans chaque microcontrôleur et a certaines fonctions concernant le passage du temps. La fonction Timer
Caractéristiques matérielles de l'ESP32 : broches, convertisseur et processeur L'ESP32, conçu par Shanghai Espressif Systems, est un microcontrôleur à faible coût et à faible consommation d'énergie largement utilisé dans l'Internet.
Top PCB Layout Design Software : Lequel est le meilleur pour vous En Chine, il y a un dicton : "Affûter la hache avant de couper le bois". Cela signifie que
Comment installer WSJT-X sur Raspberry Pi ? Si vous êtes un radioamateur passionné ou simplement un amateur d'électronique, ce tutoriel est fait pour vous.
Directives relatives aux cartes de circuits imprimés pour claviers à remplacement à chaud Les cartes de circuits imprimés traditionnelles reposent sur le processus de soudage pour fixer solidement les composants à la surface de la carte de circuits imprimés. Alors que les
Comment tester le stress de votre Raspberry Pi ? Si vous souhaitez connaître les capacités réelles de votre Raspberry Pi, en particulier si vous avez
French 
English 
German 
Japanese 
Italian 
Portuguese 
Russian 
