Sponsored Review

Most PCB manufacturing companies which provide prototype PCB (Printed Circuits Boards) and small batches for makers calculate their board prize based on the PCB size.

The chinese PCB manufacturer JLCPCB calculates the board prize based on a standard board with a size of 100x100 mm. That means that an order of 10 boards with a PCB size of 30x30mm costs the same prize as a board with the dimensions of 60x60mm.

By multiplying the PCB design on a panel you will get more boards for the prize. This technic is called panelization. If you choose the panel option the total prize of the order will be a board fee plus engineering fee.

JLCPCB kindly sent me a coupon in order to test and review their PCB panel features.

My test project is a board for my ATtiny sensor node project with a board size of 30x50mm.  The image below shows the first PCB prototypes from OSHPark.

For my test project 3x2 PCB will fit within the dimensions of 100x100mm without having higher costs.

On the X direction I can place 3 boards with additional edges of 5mm.

Create the panel at JLCPCB

After upload of the Gerber data of your PCB project the final PCB will apear on the order page.

The default order quantity for a PCB order is 5 PCBs. You will see the order prize immediately after the file upload. I changed the quantiy to 10 pieces. The prize for this small order will be 5 USD without shipping costs.

In order to use the panel feature you need to set the order option Panel By JLCPCB to Yes.

After choosing the panel option you can enter the quantity of the boards on your PCB panel.

My ATiny sensor node project fits on a 3x2 panel with the dimensions of 100x100mm including the edge rails.

This order will include 10 panels each with 6 PCBs. The total quantity of single boards will be 60 pieces.

Additional information for panel configuration

JLCPCB provides additional help for the panel configuration.

V-cut can't applied to the panel when the panel length or width is smaller than 7cm and when the the individual board size is smaller than 1.5cm*1.5cm.

In my first panel project I made a mistake and ordered a panel with dimensions of less than 7cm. JLCPCB canceled this order position and refundet the cost for the board immediately.

It would be helpful to receive an error message or warning after upload in case the panel doesn't meet the requirements.

Shipping the panels

My order has been manufactured within 2 days. The shipping to Switzerland with DHL took another 3 days.

The panel with my project looks perfect.

The V-cut lines separate the single PCBs. It is very easy to break them apart.

Conclusion

JLCPCB provides a simple panelization function to maximize the order quantity. The configuration of the PCB panel doesn't need an additional tool and can be done during the ordering process.
This is a perfect solution for small PCB prototype orders.

Am 29. April 2019 erscheint die 4. Auflage von Arduino Praxiseinstieg.

Auf über 680 Seiten erlernt der Leser den praktischen Einstieg ins Thema Arduino.

Projekte wie

  • Gefrierschrankwächter
  • Roboter
  • Geschwindigkeitsmesser fürs Fahrrad

die man aufbauen und praktisch einsetzen kann.

Weitere Praxisanwendungen sind

  • Kompass
  • Fieberthermometer
  • Wasserwaage
  • Wetterstation

Vorbestellbar und verfügbar ab 29.04.2019 bei

mitp-Verlag
Amazon.de

Mit dem Breadboard Power Adapter Kit kann eine einfache und stabile Spannungsversorgung für das Steckbrett realisiert werden.

Eine ausführliche Anleitung zeigt den Zusammenbau.

Project in progress

Wireless sensor node with cheap 433MHz transmitter built on my Tiny84 PCB.

Sensor node is reading data from LDR and DHT environmental sensor.

This project ist built on the versatile Tiny84Board PCB.

PCB is available at:
OSHPark
Tindie Shop

Project in progress

Supply power from an external bench power supply to the breadboard via 4mm binding posts.

Prototype

PCB

Circuit

Bill of Material

1 PCB (OSHPark)

2 Capacitor Ceramic, 100nF/50V (C1, C2)

1 LED 5mm (LED1)

1 Resistor 2k2 (R1)

2 Pin Header 2x4 Pin (JP1, JP2)

1 Pin Header 1x3 Pin (Optional)

1 PCB Socket 4mm PB-4 red (K1, Reichelt Elektronik)

1 PCB Socket 4mm PB-4 black (K2, Reichelt Elektronik)

Das Halbleiterheft von Elektor ist eine wahre Fundgrube mit elektronischen Schaltungen für den Bastler und Elektroniker.

Soeben hat ELEKTOR das Halbleiterheft 2017 angekündigt.

Das Halbleiterheft 2017 ist ab dem 6. Juli 2017 im Zeitschriftenhandel verfügbar.

Einziger Knackpunkt am Halbleiterheft - das Heft mit über 100 Schaltungen ist nicht im Elektor-Abo integriert und muss zusätzlich gekauft werden ;-(