ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Generic boards that are not Maple or Maple mini clones, and don't contain the additional USB reset hardware
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ahull
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Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby ahull » Wed Nov 30, 2016 11:10 pm

SMT size - my non-metric calibrated eye thinks 0805 or 1008 for D3 and D4 - just slightly less than the distance between the pins on the 0.1" header.
However best to get out the calipers and check. => http://www.topline.tv/SizeChart.html
- Andy Hull -

zmemw16
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Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby zmemw16 » Wed Nov 30, 2016 11:25 pm

i must be a fan, just ordered 2 more.
i'm in the uk and shipping is list as from somewhere to the east.


STM32F103C8T6 ARM Minisystem Development Board STM32 Development Core Board CK...
STM32F103C8T6 ARM Minisystem Development Board STM32 Development Core Board CK
Estimated delivery: Thu. 15 Dec. - Wed. 18 Jan.

Item ID: 191974161480
Transaction Id 1333131683009
Quantity: 2


can anyone tell me a sensible price for a AT24C256 £1.81 for 10 off seems slightly suss
oh well they 35 orders and 10 for £1.87
https://www.aliexpress.com/snapshot/8531353388.html?orderId=80762274882305&productId=32632083200

stephen

zmemw16
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Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby zmemw16 » Thu Dec 01, 2016 12:39 am

just got a shipping notice for the boards.
srp

evildave_666
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Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby evildave_666 » Thu Dec 01, 2016 2:48 am

I ordered a couple of these boards from one of my regular suppliers and asked for schematics.

zmemw16
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Location: St Annes, Lancs,UK

Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby zmemw16 » Thu Dec 01, 2016 3:22 am

@ahull
and there was me thinking it's just the 3 (1206 0805 0604) i need to worry about :D
link, bit overwhelming but useful.

@evildave_666
regular suppliers? price?

@roger
please snaffle those pics for the wiki if you want to. maybe slot it in above 103 with nrf24 and its variant 107 ?

stephen

the feline has found herself a cubby hole in one of my heaps, as she grooms, the whole of it rattles
she does a lot of grooming. :D

evidently she tidied house, disturbed a tin box full under there. almighty clang from it.
i don't mind her stepping across me, but not in 2 bounds and all i get is a view of her tail. she could least say hello :D

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RogerClark
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Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby RogerClark » Thu Dec 01, 2016 4:48 am

zmemw16 wrote:i must be a fan, just ordered 2 more.
i'm in the uk and shipping is list as from somewhere to the east.


STM32F103C8T6 ARM Minisystem Development Board STM32 Development Core Board CK...
STM32F103C8T6 ARM Minisystem Development Board STM32 Development Core Board CK
Estimated delivery: Thu. 15 Dec. - Wed. 18 Jan.

Item ID: 191974161480
Transaction Id 1333131683009
Quantity: 2


can anyone tell me a sensible price for a AT24C256 £1.81 for 10 off seems slightly suss
oh well they 35 orders and 10 for £1.87
https://www.aliexpress.com/snapshot/8531353388.html?orderId=80762274882305&productId=32632083200

stephen


I cant access that snapshot, I think its specific to your account (I tried removing the orderid from the URL but that didnt help either)

evildave_666
Posts: 27
Joined: Mon Apr 27, 2015 11:20 pm

Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby evildave_666 » Thu Dec 01, 2016 5:00 am

zmemw16 wrote:
@evildave_666
regular suppliers? price?



http://www.ebay.com/itm/STM32F103C8T6-A ... 1193729675

or

https://www.aliexpress.com/item/STM32F1 ... 46430.html

(same vendor)

About USD6

Image

zmemw16
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Joined: Wed Jul 08, 2015 2:09 pm
Location: St Annes, Lancs,UK

Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby zmemw16 » Thu Dec 01, 2016 10:54 am

tx-hang strikes again. she does have some nice items.

£4.86 == $6.12 - close enough :)

isn't that sch missing an oled connector ? saved anyway.

stephen

zmemw16
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Joined: Wed Jul 08, 2015 2:09 pm
Location: St Annes, Lancs,UK

Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby zmemw16 » Fri Dec 02, 2016 8:14 pm

its in a smaller font and rotated, pin names are unreadable though
srp

evildave_666
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Joined: Mon Apr 27, 2015 11:20 pm

Re: ebay 103c8t6 oled, nrf24, esp8266 + empty pads

Postby evildave_666 » Mon Dec 12, 2016 12:12 pm

I got my boards from TxHang today.

Generic 2.0 bootloader on pa1 binary from the github works fine. USB upload worked from the first go after getting the bootloader on.

Note that the swdio and swclk labels on the board's silkscreen are swapped from what they should be. Also if it wasn't clear, the TFT/OLED pins are just tied to the pins adjacent to them on the 20-pin header.


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