damn i thought its fixed in that version

it works fine with netduino v1 versions (iam using the mini, no problems there with i2c,spi and uart, but other bugs )

no i dont own one, and never have.

but i was active a lot and saw a lot of that i2c stuff, but from what i know it got fixed in 4.2.2.2, well doesent look like

you can get a sam3 or sam4, its atmels cortex m4 (arm) and programm them via atmel studio.

arduino due is sam3 btw.

it totally likes this cable. its i/o is 3.3v (only the supply from the cable is 5v, dont use that)

in chat you just called this adapter. its an ftdi cable wich is good.

i like that usb power supply thingy, its what i suggested, a swichting regulator from ebay (LM2596) - yeah in the post before i mentioned the wrong one, i corrected this.

i use them a lot.

about noise: well that depends: when i use a cheap cellphone charger i get a lot of noise, but

from a battery or a regulated power supply i get no noise at all (with the voltage first stepped up, than stepped down again, so 2x switching)

about the design: i think the chinese use the standard design from the datasheet.

there are also some versions that have current limiters, with them you can even charge li-** akkus.

its also kind of protection, so no fuse is needed.

(well, i just have the normal ones, when i short them they die, when i use more current than they can supply they drop the voltage a lot)

its not a bad idea, but you have to be carefull.

last few days 2 duinos got fried of beein not carefully enough with 12v.

i suggest opto-isolating the pins from netduino to the 12v stuff, not just a transistor/mosfet.

i suggest not using a linear regulator for a car battery (you sure its 12v and not 24v ?)

linear regulators are inefficient and make a lot of heat, while swichting regulators are way more effiecent and

dont need cooling (at least for around 10 watts)

the cheap lm2577 regulators from ebay work great for that.

there are also some for more power (but 10 watts is a lot!! thats 2amp @ 5 volt)

//edit 2577 is step up, sry, i meant LM2596

how did you get this values? doesent sound right to me.

was running code with a loop on all devices?

(my mini consumes ~30ma with fresh firmware install w/o program, but ~100-120ma with some code running)

10.000 is quite a lot write cycles. iam now at about 1000-1500 in ~6 months, iam testing a lot of different stuff.

so when i keep programming that often, in 3-5 years its damaged

that is the best fun/price ratio ive ever seen.

you totally wanna use a shift register.

its a waste of pins to use it without.

and you should not connect it directly to your netduino pins, its 7-8 leds, if all are on they may damage the common anode/cathode pin.

so use transistors for max brightness, or at least a big enuff resistor

i used that code to test a 4 digit one: http://pastebin.com/rMJRSHqn

btw: using pins directly is way more complicated than a 74hc595 where you can send bytes directly,

it shortens the code by a big ammount (sorry, cant find a sample code for that)

Using SPI to control a single shiftreg, wouldn't that require a pretty tight loop for multiplexing a 2-digit 7-segment display?

well, i even multiplexed 8x8 ledmatrixes with 74hc595, works great.

even rgb ledmatrix.

see link in my signature, i even posted the code there

did you test it with your pc?

your connecttodrive function looks very strange to me, but ive never worked with windows phone.

doesent it have a normal serialport class?

also, before you use the drive, you have to pair it first (at least on my pc, i search for device once, enter the pairing code, than i can open to serialport of it)

short: doesent work.

solutions: multiplex your analog inputs (bad) or use external adc ic's over spi/i2c (spi prefeered, can use more)

in the link in  my signature is code for the MCP3201 ... its only one port, but easy to change for the 4 or 8 port versions

thats normal, its the same for windows apps.

first: the socket code/drivers is from an external nsource, lwip i think, so its not microsoft based

than: i had the same problem with my arduino, also cosm.

i fixed it that way:

i just restart the device every 10 minutes -.-  (with software, later iam gonna add an attiny85 as external "watchdog" todo that)

since than i had no more problems.

joopc: no iam not kidding. i offered a solution (or workaround or whatever you want to call it)

gebrander: your 1.) i dont even try to answer, whatever man ...

2.) yes a workaround, cos it will take time to fix the real issue (wich has todo with the dhcp i assume)

if your lucky it will be fixed with the .netmf 4.3 version (new lwip version) -

if that isent the case, it will take a long time to get this fix, so what todo?

cry? or try to "fix" or workaround it yourself?

you can also do something usefull and support .netmf / lwip with better code

keep in mind that sl is not a billion dollar company with hundreds of developers, and there is many stuff that needs fixes/attention

also - if you change too much on the core, it gives troubles on the further netmf updates.

-.- i never said that i dont want it all fixed or something like that. i like working stuff

but the stupid answers about me kidding and that tv stuff indeed make me angry, i mean, i tried to offer

some help and my experience. iam in no way affiliated with sl or some company.

//edit: if id know a better solution (for now) id tell it.

[font="arial, helvetica, sans-serif;"]SecretLabs.NETMF.Hardware.Netduino is for all gen2 boards, the other for the gen1.[/font]

[font="arial, helvetica, sans-serif;"]they changed the naming for the gen2 boards so its in line, all have the same namespace there (normal and plus - and the ones that will follow sometime too)[/font]

I am not sure this is relevant, but ST-LINK/V2 included on the Discovery board can be used to debug and program other micros/boards via SWD, it is just needed to remove those two jumpers of CN3 connector (ST-LINK/DISCOVERY selector).

i told him in the chat

cool project!

wich amplifiers are you using?

greetings

After using $670 on netduino go related stuff,

sounds like a lot. are you sure its only for the go? maybe you can use the stuff you bought for a normal netduino or even an arduino.

thats what i do with my electronic stuff, nearly all parts are compatible with all my different mcu's

its looks ok, what does tghe who am i register answer?

ill add my basic code for this module, its i2c, but maybe it helps

also try changing your spi speed, start with 1-2 mhz (idk the specs for the device now, but 10mhz sounds high)

nice, i thought the onboard (not on-chip) peripherals have different pins than the netmf uses (many pins can have different types of usage)

leds and button is kinda easy.

a-d is also, the serial ports are also in the netmf port (except one isnt working becouse of the micro usb port having the same pins)

all 3 spi modules work, one i2c (netmf limit)

and the 2 da converters are also implemented.

wich spi module and cs pin it uses? and whats about the interrupt pin? (the accelerometer)

also, what you think about the audio ic? that would be cool to have too, but from what ive read its i2s

The gold pin doesn't do anything on the Netduino Plus. To do the firmware update you need to hold down the reset button before connecting it to the computer, plug in the USB, then release the button. The procedures for the rest of the firmware update are pinned at the top of these forums. 

thats only for boards with stm32. gen1 are sam7x (except go wich is stm32 too)

that question also gets asked every month

its what ziggurat said, its normal, so dont worry. an error looks different.

(windows apps show the same message when a thread ends)