New PicAxe PCBs arrived

Received some new PCBs today from iTeadStudio. I did these boards using their new colour pcb and 100% test service.

This is the first time I’ve done blue boards with iTeadStudio. They look fantastic. I’m a convert I think… no more red boards for me. 😉

This boards is intended to get my kids and up and running with a reasonably capable all-in-one design based around the Picaxe 40X2. I’ve done a smaller PicAxe board in the past around the 28X2 but this time I wanted to really max it all out. The board a dual 3A h-bridge, built in programmer/debugger, d-class audio amplifier, nokia 192×192 graphic LCD, slave PIC processor, 25 I/O ports, 2 regulators, as well as a bunch of buttons, leds and whatever else I could think up at the time.

Schematics in PDF format

It was also my first foray away from Eagle for my personal stuff. After test driving a bunch of other tools, I’ve decided to move to Diptrace. Its an amazing layout program, as well as bundles cheaper than Eagle. With version 6 of Eagle coming out, I was looking at a $550 upgrade charge to move to the new version. Perfect time to jump ship. 😉

Schematics in DipTrace format

PCB layout in DipTrace format

The Freescale MC33932 that I’m using on this board (as well as a few others) has a big old heatsink on the bottom of it so its easier to run the PCB and chip in my reflow oven. The trick is the the MC33932 chips are MSL3 (moisture sensitivity level 3). Once you open the package, you’ve only got 168 hours to reflow the chips before they absorb so much moisture that they are likely to crack during the temperature profile of reflow. I hate MSL3 parts. Anyhow, once you open that package you are committed. So I ended up running a batch of 19 boards tonight, putting this chip on the Picaxe design as well as a firefighter design that also uses the chip.

Weeeeeeeeee! I don’t need all those boards but no sense wasting the h-bridge chip.

 

This entry was posted in PCB, PICAXE, Robot. Bookmark the permalink.

2 Responses to New PicAxe PCBs arrived

  1. Pingback: New Picaxe40x2 Boards assembled | Ottawa Robotic Enthusiasts Blog

  2. Bella Zhang says:

    Dear sir or madam,

    How do you do!
    This is Bella from Shenzhen SinoFast Electron Co., Ltd , a professional PCB and PCBA manufacture in China .Now I am Writing to seek for cooperation with you .Our company can all kinds of PCBs ,such as 0.3MM thickness Aluminum pcb, double side Aluminum pcb ,Aluminum -based PCB with solder cup holes.Meanwhile , you can check in our website for more details.
    Any question, please feel free to contact me anytime .We have been sincerely looking forward to establish a meaningful business relationship with you.Hope to hear from you soon!

    Bella Zhang
    Tel:086-755-27348887
    Fax:086-755-27398826
    Email:sales5@xnjpcb.com
    MSN:sales5@xnjpcb.com
    Skype:amiwhoiam
    Shenzhen SinoFast Electron co.,Ltd
    Website:www.alpcb.com.cn
    Marketing Department:Room 636,Fude Building,Cuigang South Road, Fuyong Town, Baoan Distirct, Shenzhen City, Guangdong, China

Leave a Reply

Your email address will not be published. Required fields are marked *