Search found 1674 matches

by zmemw16
Sun Jan 28, 2018 6:26 pm
Forum: STM32F103 Boards
Topic: ebay 103c8t6 oled, nrf24, esp8266 + empty pads
Replies: 55
Views: 4117

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

unfortunately i discovered with a cz_ministm32f103 that the 2.1mm external psu connection is a good fit to a 12v wall wart, missed the silk screen indicating it's for a 5v one wry :) not a good result a very long time ago, i used a transformer 6v ac winding, full diode bridge and a 6v dc capacitor f...
by zmemw16
Sun Jan 28, 2018 3:00 pm
Forum: STM32F103 Boards
Topic: ebay 103c8t6 oled, nrf24, esp8266 + empty pads
Replies: 55
Views: 4117

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

istr @someone had blue smoke from a vbat pins shorted to usb vcc ?
srp
by zmemw16
Sat Jan 27, 2018 10:19 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: ricardo-reis: hello!
Replies: 14
Views: 307

Re: ricardo-reis: hello!

Stephen - do you mean i should try the SPI2 or? reading the 103c8 data sheet, if spi1 is remapped on to port B it is all 5v tolerant. seems to me that might be easier. so if you can investigate afio_remap to make spi1 use port b try a forum search with afio_remap or just afio ? it has to written do...
by zmemw16
Sat Jan 27, 2018 4:33 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: electrobling: Greetings
Replies: 8
Views: 164

Re: electrobling: Greetings

and why is it like my prescription meds, i always seem to have more left of one and oddly less on others ?
unsoldered boards and header pin strip :D
srp
by zmemw16
Sat Jan 27, 2018 4:26 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: ricardo-reis: hello!
Replies: 14
Views: 307

Re: ricardo-reis: hello!

wow, i've got one of those, found it while searching for something else, absolutely typical :D that got me reading the data sheet looking for 5v tolerant pins. somewhat surprisingly spi1 is not 5v tolerant, i thought all of port A was :!: BUT if remapped on to port B it is, perhaps something to cons...
by zmemw16
Fri Jan 26, 2018 11:15 pm
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: electrobling: Greetings
Replies: 8
Views: 164

Re: Greetings

i hope you ordered more than one :D
have a look at @mrburnette posts for pointers
srp
by zmemw16
Fri Jan 26, 2018 11:12 pm
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 151
Views: 6244

Re: Andy's Postbag and random ebay links

perhaps curving it the other way - x - = +
srp
by zmemw16
Fri Jan 26, 2018 10:12 pm
Forum: Off topic
Topic: SMD, reflow, beginner
Replies: 12
Views: 205

Re: SMD, reflow, beginner

you're that sure ?
by zmemw16
Fri Jan 26, 2018 10:11 pm
Forum: Postbag
Topic: Andy's Postbag and random ebay links
Replies: 151
Views: 6244

Re: Andy's Postbag and random ebay links

perhaps powering it with a suitably large weight applied to a flat object on top of it ?
srp
by zmemw16
Fri Jan 26, 2018 10:07 pm
Forum: Off topic
Topic: SMD, reflow, beginner
Replies: 12
Views: 205

Re: SMD, reflow, beginner

i think all here should perhaps assume that the missus is viewing the forum :?: :lol:
srp