New '746 Cortex M7 Nucleo Board

Any other STM32 based boards
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RogerClark
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Re: New '746 Cortex M7 Nucleo Board

Post by RogerClark » Fri Feb 26, 2016 5:20 am

Ray

The SDR stuff uses the these RTL2832U dongles

Generally either this one

http://www.ebay.com/itm/RTL2832U-R820T- ... Swu4BV5ZNR

or this one

http://www.ebay.com/itm/FM-HDTV-TV-Tune ... SwJkJWjlpF

As these devices are not designed to receive signals below around 50Mhz people use an up converter

Something like this


http://www.ebay.com/itm/HF-Up-Converter ... xy9eVRU0Ih


I have one of those dongles, and its very useful for looking at ISM band signals e.g. 433Mhz.
I don't have an up converter, but I do have a down converter, so I can theoretically pick up Wifi and Bluetooth signals, by down converting them to around 400Mhz which the dongle will receive.
However in practice both Wifi and BLE are hard to receive as they frequency hop and you'd need to write some custom firmware to track the BLE packets as they jump from channel to channel.

stevech
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Re: New '746 Cortex M7 Nucleo Board

Post by stevech » Fri Feb 26, 2016 5:28 am

martinayotte wrote:
stevech wrote: Rpi zero (augmenting 2 older RPi)... With VNC and Samba. Cheap USB WiFi. At $5 these can't be beat.
Steve, I won't buy any RPi Zero, because of the shipping fee,)
Does buying from a UK or EU distributor help? In the US, in this small Feb. batch, we have only Adafruit and that's really not good as of now. Prior RPi boards had 4 or so distributors in the US and some large ones.

Main attraction for me was small size w/Linux, plug and play WiFi, and of course, low price.

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RogerClark
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Re: New '746 Cortex M7 Nucleo Board

Post by RogerClark » Fri Feb 26, 2016 5:41 am

Still very hard to get a RPi Zero for a reasonable price Down Under

None from my normal channels e.g. eBay or AliExpress

Cheapest I can see on AliExpress is $69 (AUD)

racemaniac
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Re: New '746 Cortex M7 Nucleo Board

Post by racemaniac » Fri Feb 26, 2016 7:17 am

RogerClark wrote:Still very hard to get a RPi Zero for a reasonable price Down Under

None from my normal channels e.g. eBay or AliExpress

Cheapest I can see on AliExpress is $69 (AUD)
I got mine from http://thepihut.com
They sell them at a fair price, and their site says world wide delivery?
Since they sell them at a fair price, whenever they have stock, it's immediately sold out, but if you keep an eye on their mailing list/twitter, they announce when it will be available, and just be ready then to buy one XD. (i just hope it's not somewhere in the middle of the night for you if you're on the other side of the world XD)

stevech
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Re: New '746 Cortex M7 Nucleo Board

Post by stevech » Fri Feb 26, 2016 5:40 pm

RogerClark wrote:Still very hard to get a RPi Zero for a reasonable price Down Under

None from my normal channels e.g. eBay or AliExpress

Cheapest I can see on AliExpress is $69 (AUD)
$69 AUD for a Zero is likely a "kit", meaning the Zero, wall wart, cables, and other up-sells. Lots of dealers are doing these kits since the supply of boards in this release is again small. First build was said to be 10,000 boards. I'd think the 2nd build would have been much more.

The Feb. 2nd build of Zeros seems to be out there but the quantities are quite low.

Yesterday, Adafruit had a USD$29 kit. If you need those add-on items. They had no board-only items for sale, likely due to the low quantity released.

I'm waiting for more board and meanwhile, I use my one Zero and my two RPi 2's. Code runs on all, no changes. Same for IO connector.

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