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Re: Proto-board soldering techniques

 by motopic ¦  Tue Jun 21, 2016 5:37 am ¦  Forum: SparkFun Product Questions ¦  Topic: Proto-board soldering techniques ¦  Replies: 9 ¦  Views: 2966

Circuit writer pen is liquid conductor that drys hard, its used to fix traces in pcbs really, but you can connect pads with it. Expensive solution. You can buy perfboard that has lines of holes, with judicious layout and cutting of lines you can get a lot of pins wired using the board, its called st...

Re: how to design a pcb for manufacturing

 by motopic ¦  Tue May 24, 2016 6:15 am ¦  Forum: PCB Design Questions ¦  Topic: how to design a pcb for manufacturing ¦  Replies: 4 ¦  Views: 2002

First read all you can find online about pcb layouts in general. Then read about the software you are using. You will have to contact your anticipated fab house. Each will have min trace widths, thicknesses, drill sizes, etc. They should also have guidelines on parts placements and margins, of cours...

Re: Problem with STM32L011K4

 by motopic ¦  Thu May 05, 2016 6:24 am ¦  Forum: OpenOCD ¦  Topic: Problem with STM32L011K4 ¦  Replies: 1 ¦  Views: 883

Vague question is vague. ETA: you shouldn't use the forum area to ID your question, I read the "new" messages list which mashes all new messages together, if I had no...

Re: Java hardware/software platform requrest

 by motopic ¦  Mon Apr 11, 2016 9:37 am ¦  Forum: Projects ¦  Topic: Java hardware/software platform requrest ¦  Replies: 2 ¦  Views: 367

Or a BeagleBoneBlack, will just run java jre no problems. That tool appears to be a closed system, curious why they did not start with NetBeans, Eclipse or Jedit and build integration into existing work platforms. Netbeans would have been easy, a lot of the pieces are already out there. I'd doubt th...

Re: Can someone give me a basic overview of Arduino, please?

 by motopic ¦  Fri Apr 08, 2016 10:16 am ¦  Forum: Arduino ¦  Topic: Can someone give me a basic overview of Arduino, please? ¦  Replies: 18 ¦  Views: 1820

You CAN use a Uno board to program a 328 chip. Search for that. Or other tools, like a ATDragon, etc. google this. If you just cant figure it out, will sell you a 328 preprogrammed with a bootloader. You just can use the name "Arduino" by itself. See the FAQ, you can use your source...

Re: PCB house

 by motopic ¦  Tue Mar 22, 2016 7:16 am ¦  Forum: PCB Design Questions ¦  Topic: PCB house ¦  Replies: 8 ¦  Views: 2199

I've used one in Chicago, and one in Thailand (futurlec). Thailand is way cheaper. They take standard gerber and some other formats. Lots of options, silkscreen, mask. Turn time is about 2 weeks with shipping. They will also populate boards and (I assume can) test as well.(I have not used these opti...

Re: Maple Microcontroller Alternatives

 by motopic ¦  Thu Feb 11, 2016 6:59 am ¦  Forum: Everything ARM and LPC ¦  Topic: Maple Microcontroller Alternatives ¦  Replies: 15 ¦  Views: 3414

C for the ARM is nontrivial. You have 2 routes, pay a LOT of $$$ for a commercial toolkit such as Keil, Renaissance, etc. Or try a free toolkit, and wade thru tons of online hints, most of which will be sorta out of date and not applicable until you get something working. This could take you weeks. ...

Re: How to handle making a choice based on elapsed time?

 by motopic ¦  Mon Feb 08, 2016 7:12 am ¦  Forum: Arduino ¦  Topic: How to handle making a choice based on elapsed time? ¦  Replies: 3 ¦  Views: 431

Use a timer type library like this, This cant be the only one, so poke around and find one you like. Or use a hardware clock (RTC - real time clock) with an alarm feature like this: This library is mine, which rem...

Re: Maple Microcontroller Alternatives

 by motopic ¦  Wed Jan 27, 2016 2:58 pm ¦  Forum: Everything ARM and LPC ¦  Topic: Maple Microcontroller Alternatives ¦  Replies: 15 ¦  Views: 3414

I don't think I have anything beyond the link given above for the teensy part. He only has a example blinky.c I'll look when I get home. The STM32 F104 discovery board has a site with lots of examples. Also a google search turned up a STM32 arduino list. STM32 is non trivial to learn and use at the ...

Re: Maple Microcontroller Alternatives

 by motopic ¦  Wed Jan 27, 2016 2:44 pm ¦  Forum: Everything ARM and LPC ¦  Topic: Maple Microcontroller Alternatives ¦  Replies: 15 ¦  Views: 3414

After thinking and looking the Maple (retired) products from SF, why not just get the chips and toolchain if you programmed it at the low level? The Maple SW and HW were both claimed to be OPEN, so get all the data from them. Spin your own boards and never look back. STM32 are still being made. Othe...

Re: Maple Microcontroller Alternatives

 by motopic ¦  Wed Jan 27, 2016 2:36 pm ¦  Forum: Everything ARM and LPC ¦  Topic: Maple Microcontroller Alternatives ¦  Replies: 15 ¦  Views: 3414

I dunno, I have a couple I could practice with. The examples are C. I've only used the arduino part, never had a need for doing it in C++. Is all your current code in C++? On such a small device, C++ only uses up space, but thats my opinion, I haven't tested it. Thats the beauty of using arduino, th...

Re: Maple Microcontroller Alternatives

 by motopic ¦  Wed Jan 27, 2016 1:58 pm ¦  Forum: Everything ARM and LPC ¦  Topic: Maple Microcontroller Alternatives ¦  Replies: 15 ¦  Views: 3414

teensy 3 may work.

freescale arm, arduino user level, but maybe programmable via c as well. check with

I think this is it:

Re: verify errors

 by motopic ¦  Wed Jan 27, 2016 7:10 am ¦  Forum: Arduino ¦  Topic: verify errors ¦  Replies: 6 ¦  Views: 618

Search your library folder for this function (use a text search) "irrecv" sketch_dec18a_RGB_LED:84: error: 'irrecv' was not declared in this scope Either IRremote.h (or c) is not there, or this function is not in the version you have. The error is that the function irrecv cannot be found in the libr...

Re: Getting started: looking past the breadboard

 by motopic ¦  Tue Jan 26, 2016 3:27 pm ¦  Forum: Projects ¦  Topic: Getting started: looking past the breadboard ¦  Replies: 7 ¦  Views: 718

I'm looking at starter kits and came up with another question. Most of the kits come with an Uno on a board with lots of header strips. I see other boards are available seperately with solder pads. Do you keep the starter kit board for designing, and usd a smaller board for your final project? Yes ...

Re: Serial Communication with Multiple Devices

 by motopic ¦  Thu Jan 21, 2016 10:30 am ¦  Forum: Arduino ¦  Topic: Serial Communication with Multiple Devices ¦  Replies: 2 ¦  Views: 322

Use a softserial(bitbanged) for one (the slower one)
Use a I2C or SPI interface if possible. For example you could use a I2C pin expander to handle the TS IO.
Or add another hw serial port. ... /_/N-45m1h

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