Search found 9 matches
- Mon Jul 13, 2020 11:45 pm
- Forum: General Discussion and Questions
- Topic: converting png file to bytearray
- Replies: 31
- Views: 33559
Re: converting png file to bytearray
Hello everyone. Playing with pbm in P4 is simple. BUT. If i have TRUE pbm in P1 i have some fun. I can write pbm file P1 # cool image 7 7 0001000 0011100 0111110 1111111 0011100 0011100 0011100 I can convert it into 1 string with open('arrow.pbm') as f: data_list = f.readlines() # for framebuffer [w...
- Fri Jun 19, 2020 9:20 pm
- Forum: Drivers for External Components
- Topic: convert ds18b20 serial number
- Replies: 7
- Views: 9616
Re: convert ds18b20 serial number
Every year some nube like me ask something likekevinkk525 wrote: ↑Fri May 17, 2019 6:37 pmAlways funny when someone revives a thread that is a year old
The solution of converting a rom to string is quite simple: ''.join('%02X' % i for i in iter(rom))
Can you take some sample of code? Pleeeeeesssee
- Tue Jun 16, 2020 11:05 pm
- Forum: ESP32 boards
- Topic: How to invert part of screen? ssd1306
- Replies: 0
- Views: 1516
How to invert part of screen? ssd1306
Hello everyone)
I want to create something like this Arduino OLED gauge SSD1306
I creating a menu.
I have a white rectangle in the middle. When a text scrolls down and touches an edge of the rectangle, pixels in the letters should start invert one by one.
I want to create something like this Arduino OLED gauge SSD1306
I creating a menu.
I have a white rectangle in the middle. When a text scrolls down and touches an edge of the rectangle, pixels in the letters should start invert one by one.
- Tue Jun 16, 2020 8:50 pm
- Forum: ESP8266 boards
- Topic: ssd1306 oled: scroll repeats edge pixels
- Replies: 6
- Views: 4682
- Sun Jun 14, 2020 10:39 am
- Forum: ESP32 boards
- Topic: how to use framebuf on ESP32
- Replies: 2
- Views: 2219
Re: how to use framebuf on ESP32
Hi. In new day with renewed vigour:) about code. That my logic. The screen works every time after "show()" comand. I hide my function in "display.py" file and call it only than i need it. The if __name__ == '__main__': here for quick control check what's wrong: wire or code. Incidentally the indenta...
- Thu Jun 11, 2020 6:50 pm
- Forum: ESP32 boards
- Topic: how to use framebuf on ESP32
- Replies: 2
- Views: 2219
how to use framebuf on ESP32
Hello every one! stupid question how to use framebuf on ESP32? i have a manual and i have a simple code: from machine import Pin, I2C import ssd1306 def display(zuzu, scl_pin=22, sda_pin=21, oled_width = 128, oled_height = 64): #the list for "display" must contain data in format like (string, int, i...
- Sun Jun 07, 2020 3:06 pm
- Forum: ESP32 boards
- Topic: DS18B20 wrong serial code/adress/roms
- Replies: 5
- Views: 3812
Re: DS18B20 wrong serial code/adress/roms
Looks like i'm a fool)) Yes. One 4.7K pull up resistor and it's alive! IT'S ALIVE!! Aaaand whats'up doc? then we use internal PULL_UP mode we pull up signal only for ESP. BUT! DS18B20 is microchip too. And the wire for little DS18B20 is like giant radio aerial. Maybe in my first sensor this problem ...
- Sat May 30, 2020 8:46 am
- Forum: ESP32 boards
- Topic: DS18B20 wrong serial code/adress/roms
- Replies: 5
- Views: 3812
Re: DS18B20 wrong serial code/adress/roms
https://forum.micropython.org/viewtopic.php?f=2&t=8180&p=46521&hilit=ds18b20#p46528 maybe too many units on one bus? one sensor wired in normal mode (not parasite). positive power connected to 3.3V. the first sensor work with out pull up resistor. But China so diffrent China... I try to use inner p...
- Thu May 28, 2020 5:49 pm
- Forum: ESP32 boards
- Topic: DS18B20 wrong serial code/adress/roms
- Replies: 5
- Views: 3812
DS18B20 wrong serial code/adress/roms
Hi. I have ESP23 dev kit with micropython firmware XX. I also have ds18b20 waterproof sensor (datasheet link: https://datasheets.maximintegrated.com/en/ds/DS18B20.pdf I wrote this code for it: import time, onewire, ds18x20, machine from machine import Pin ds_pin=Pin(19) ds_sensor = ds18x20.DS18X20(o...