Search found 119 matches

by IHOXOHI
Tue Sep 08, 2020 10:15 am
Forum: Drivers for External Components
Topic: Adafruit MicroPython TSL2561 Library
Replies: 4
Views: 4696

Re: Adafruit MicroPython TSL2561 Library

Hi mnvk52, I'm not an expert but I think that 3.4 and 2.99 are closes values, especially for lux values wich could be upper than 40000 lux with a tsl2561, and maybe this difference is true because light is changing every time. Otherwise, gain is used for have betters values for DIFFERENTS situations...
by IHOXOHI
Tue Sep 08, 2020 9:15 am
Forum: Drivers for External Components
Topic: IS31fl3731 Charlie-Plexed LED Matrix
Replies: 8
Views: 9683

Re: IS31fl3731 Charlie-Plexed LED Matrix

Hi, I would like to use the matrix for display time. Logically, on the 15x7 charlieWing matrice, there is a way for display 4 numbers of 3 pixels in width direction and 3 spaces between numbers. Currently size of number is too big for doing that. So, I need to change the "font" using by frambuffer. ...
by IHOXOHI
Tue Sep 01, 2020 8:01 am
Forum: General Discussion and Questions
Topic: opening existing file on /flash for appending
Replies: 5
Views: 2919

Re: opening existing file on /flash for appending

Hi Smhodge, Maybe I'm wrong but the usual procedure for save data contain 3 importants parts: -You have the first one with "file = open(file-path, 'a+b')", one time. -But after you have to use "file.write(data)" each time that you write data. -and finally for save data, "file.close()", one time. So,...
by IHOXOHI
Mon Aug 31, 2020 1:31 pm
Forum: General Discussion and Questions
Topic: archlinux distribution and micropython?
Replies: 3
Views: 1923

Re: archlinux distribution and micropython?

Thanks Roberthh, Finally, on a fresh live-iso of parabola on a usb-stick, there isn't problem. So, the problem is only persistent on my old ditribution of parabola. On this usual installation, there isn't any new device which appear when I plug a pyboard... This is strange. An usual usb stick appear...
by IHOXOHI
Mon Aug 31, 2020 10:26 am
Forum: Hardware Projects
Topic: Larger fonts on SSD1306 OLED displays
Replies: 23
Views: 161051

Re: Larger fonts on SSD1306 OLED displays

PERFECT.

So good.

All my respect.
All the best.
by IHOXOHI
Mon Aug 31, 2020 9:57 am
Forum: General Discussion and Questions
Topic: archlinux distribution and micropython?
Replies: 3
Views: 1923

archlinux distribution and micropython?

Hi, I tried to use micropython with parabola linux distribution which is very closed from archlinux... Pyboard (d or not) aren't recognized by this distribution... So, I haven't /dev/ttyACM0, and I can't use micropython on archlinux... Is there an other way to use micropython on a linux distribution...
by IHOXOHI
Sun Aug 30, 2020 2:54 pm
Forum: Hardware Projects
Topic: Larger fonts on SSD1306 OLED displays
Replies: 23
Views: 161051

Re: Larger fonts on SSD1306 OLED displays

Hi, Nice! It works fine. Very usefull! Just, I tried to use font_to_font.py to make my font for have a bigger font than the courrier20 which is in the repo... The return of the command "./font_to_font.py courrier.ttf 30 my_font.py" looks good. But when I tried to use this my_font.py, I have the retu...
by IHOXOHI
Thu Aug 13, 2020 10:15 am
Forum: Pyboard D-series
Topic: wbus-DIP28 button use?
Replies: 5
Views: 3743

wbus-DIP28 button use?

Hi, I didn't find in documentaion how use the button on the DIP28... There is "booto" inscription...It looks that it's a boot button. So, is it just for reset withoot use of boot.py file? Nothing happen when I push it... Could it be possible to change function of this button for add an other user bu...
by IHOXOHI
Wed Aug 12, 2020 9:14 am
Forum: General Discussion and Questions
Topic: check lipo battery level?
Replies: 8
Views: 4230

Re: check lipo battery level?

Yep, Finally it's a little bit dangerous. It depends of the power of the computer which is charging. For me it's allright with a raspberry computer, but just with a laptop, battery is very hot during charging. I will try to add a voltage regulator, but maybe this will stop the charging ability??? Th...
by IHOXOHI
Wed Aug 12, 2020 9:09 am
Forum: MicroPython pyboard
Topic: Vbat use
Replies: 1
Views: 1668

Re: Vbat use

Yop,

Ok, I understood that there isn't a way to charge a battery on pyboard (with fet diode).

No way. I have to use a specific charger like the powerboost 1000c from adafruit for doing that.

I have seen that it looks possible with the pyb-D and wbus28...