Search found 29 matches

by .rpv
Sat Jun 06, 2020 9:46 pm
Forum: Off topic
Topic: IRF7103 and 3.3V control with STM32
Replies: 7
Views: 1627

Re: IRF7103 and 3.3V control with STM32

I thought IRF7103 for 3.3V control is not a good choice. Thanks for the hint with the AO3400A transistor. I checked if it is available where I live (aliexpress is stopping the project for 1-2 months), I found it. I also found AO4800, it seems to have exactly the same pin distribution as IRF7103. Th...
by .rpv
Fri Jun 05, 2020 10:12 pm
Forum: Off topic
Topic: IRF7103 and 3.3V control with STM32
Replies: 7
Views: 1627

Re: IRF7103 and 3.3V control with STM32

yup the AO3400 and AO3401 http://www.aosmd.com/pdfs/datasheet/ao3400.pdf http://www.aosmd.com/pdfs/datasheet/ao3401.pdf are very attractive searches like this returns lots of entries https://www.aliexpress.com/wholesale?catId=0&SearchText=ao3400 https://www.aliexpress.com/wholesale?catId=0&...
by .rpv
Fri Jun 05, 2020 8:41 pm
Forum: Off topic
Topic: IRF7103 and 3.3V control with STM32
Replies: 7
Views: 1627

Re: IRF7103 and 3.3V control with STM32

Hi, I don't think so, this mosfet has already too much resistance (rdson) on optimal conditions (130mΩ). Has a gate threshold voltage at max 3v, pretty close to the 3v3 signal, so it won't work at all or it will get pretty hot. You should look for other mosfets with lower gate threshold. You didn't ...
by .rpv
Tue May 19, 2020 12:48 am
Forum: Builds and Announcements
Topic: Release 1.9.0 is available
Replies: 9
Views: 2809

Re: Release 1.9.0 is available

Awesome, thanks :D
by .rpv
Sat May 16, 2020 1:53 am
Forum: Off topic
Topic: Decapping an LM324 (DIP Package)
Replies: 2
Views: 1538

Re: Decapping an LM324 (DIP Package)

fpiSTM wrote:
Wed May 13, 2020 2:59 pm
LOL.
The power of a lighter :lol:
:lol:


I tried with other ICs but I was unable to recover the bare IC, even smaller than this and the method it's too destructive :D
by .rpv
Fri May 01, 2020 10:48 pm
Forum: General discussion
Topic: Some confusion around the ordering/mapping of the pins in the variant.cpp PinName array
Replies: 10
Views: 2123

Re: Some confusion around the ordering/mapping of the pins in the variant.cpp PinName array

fpiSTM wrote:
Fri May 01, 2020 10:14 pm
FYI, @.rpv
The analog restrictions has been removed ;) you can define them in any order you want and not in a contiguous way.
Awesome :o
by .rpv
Fri May 01, 2020 10:06 pm
Forum: General discussion
Topic: Some confusion around the ordering/mapping of the pins in the variant.cpp PinName array
Replies: 10
Views: 2123

Re: Some confusion around the ordering/mapping of the pins in the variant.cpp PinName array

Hi, so yes, the pin naming stuff it's really over complicated.... so the Px_XX (example: PA_0) are the "real" pin names, those are defined within the CORE, all others are just an AKA: numerical pins and the PxXX (PA0) names, but the Px_XX cannot always be used, it will depend on the functi...
by .rpv
Wed Apr 22, 2020 1:27 am
Forum: Off topic
Topic: Decapping an LM324 (DIP Package)
Replies: 2
Views: 1538

Decapping an LM324 (DIP Package)

So I order some LM324 on SMD package but the seller send the DIP version, I don't have an use for those so I saw this method and decided to use it on this IC: https://coproch.cl/wp-content/cache/lm324_000_.jpg https://coproch.cl/wp-content/cache/lm324_001_.jpg The resistor it's an 0402, such waste o...
by .rpv
Fri Apr 10, 2020 12:02 am
Forum: General discussion
Topic: EEPROM.put
Replies: 3
Views: 1362

Re: EEPROM.put

Are you using Roger's Core, right?, I used this code on the sketch to add get/put functionality: template <class T> void eeGet(int ee,T& value){ byte* p=(byte*)(void*)&value; unsigned int i; for(i=0;i<sizeof(value);i++) *p++=EEPROM.read(ee++);} template <class T> void eePut(int ee,T& val...
by .rpv
Tue Apr 07, 2020 1:06 am
Forum: General discussion
Topic: Arduino compile to .bin?
Replies: 5
Views: 1793

Re: Arduino compile to .bin?

Using stlink on arduino ide doesn't need bootloader, serial or messing with the boot pins. But also, arduino ide creates a .bin file when compiles, it saves it on the OS temp folder, just check your compile resume log, it says something about an .ino.elf file, on the same folder it leaves the .bin f...

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