Use Arduino to drive robotic platform motors with the QuadMotor shield.
This high power motor shield can drive 4 DC motors with a supply voltage of up to 46V and a DC current of up to 4A DC per channel.
Arduino:4-digit shield
Aug 24
I’m back from holidays and can now focus on more important things. Firstly the new quad-motor shield is ready and I’ll post the buy button soon.
Then the X10 shield is in a holding pattern as I’m searching for a 310MHz ASK transmitter for North America. There are lots of 315MHz devices out there but 310MHz seems scarce. If you know of any 310MHz ASK transmitters please drop me a note.
This is what the updated library “printstr” will look like. I have to do some more work on this library later this weekend.
Please see the downloads page for the latest version of the 4-digit shield driver library. Currently V2
I’ve uploaded a first version of the ShieldStudio Arduino library. This library allows the usr to use the 4-digit shield without in depth knowledge about the MAX6953 display driver.
There are lots more to do in the code, but for now it should be good for inexperienced users.
This version of the library supports:
- setBrightness(char bright); // set display brightness, 00 – FF
- int version(void); //get the library version
- void Test(bool onoff); //turn on/off all LEDs in MAX6953 test mode
- void ShutDown(); //put the shield in low power standby mode
- void WakeUp(); //Wake up from standby
- void WriteDigit(char character,char segment,char plane); //Write one character to segments 1 to 4 plane can be 0 or 1
- void Write4(char* str,char plane); //Write a 4 characte string to plane 0 or 1
- void BlinkOff(); // Blink will switch display to plane 0 and turn blinking off
- void Blink(); //Switch between plane 0 and 1 automatically
- void BlinkFast();
Arduino 4-digit LED Matrix shields are now ready for order from my store
Arduino:LED matrix update
Jul 22
Due to unforeseen circumstances I was not able to complete the web store as indicated in my previous post. I now are free once again and can focus on getting the store up and running within the next few days.
Arduino : display shield
Jun 28
Finally the right boxes are here, and so is summer.
Using the slightly larger packaging should result in saving some shipping cost. I know it sounds crazy but there is a package too small for cheap shipping.
The new boxes are 6x4x3 instead of 4x4x4. This should be the last straw in getting 5×7 matrix shields out to Arduino fans.
I’ve built and tested some more 4-digit 5×7 led matrix shields. Yield so far is 100% and no rework necessary. Bigger mailer boxes are on their way and should be here on Wednesday. The old 4x4x4 boxes turned out to be too small for the cheaper shipping.
Instead of waiting for a proper shopping cart I’ll put a few on EBay this weekend so check it out there too.
Any ideas for a project using this shield ?
Its been a long time since I wrote an update. I’m back from Embedded Systems Conference in Chicago and things are returning to normal again. As for the 5×7 Arduino shields I’m just wrapping up a few last things in order to open up the store. Finding a cheap shipping option that does not take 4 weeks was a challenge. Canada post seems to be the cheapest by far and I’ll be using them for now. I just need to work through the customs requirements and some administrative tasks with them first.
- I have a few shipping methods to offer
- Canada post small packet air seems to be least expensive - between $7 and $15
- Then EBAY flat rate box. This includes tracking options – between $15 and $20
- Fedex are faster but way too expensive for now but not out of the question – more than $20
- Properly marked anti-static bags are now also in house.
- Boxes for packaging are here. These may be too small for the cheaper shipping. Yea – this is confusing to me too.
- Currently working on US customs requirements. CN22 or commercial invoice now seems to be the option to go.
- Final pricing needs to be calculated.
Twitter
