Search found 5 matches

by Lepeshka
Sat May 16, 2020 12:13 pm
Forum: Drivers for External Components
Topic: ST7920 text mode driver
Replies: 0
Views: 638

ST7920 text mode driver

I wrote code for text mode st7920 display. Link: https://github.com/Lepeshka92/micropython-esp8266-st7920 But there is a problem. RAM optimized for 16x16 characters. So, if I want write letter 'A' (8x16) in first position, i need to write a space before it. It will delete letter in zero position. Ho...
by Lepeshka
Sat Nov 30, 2019 7:00 pm
Forum: Hardware Projects
Topic: NeoPixelGram
Replies: 0
Views: 958

NeoPixelGram

I made NeoPixel matrix controlled by Telegram bot. Video: https://www.youtube.com/watch?v=Lv6XG4p3-OY Github: https://github.com/Lepeshka92/NeoPixelGram Project: https://www.hackster.io/lepeshka/neopixelgram-82c920 or https://lepeshka.wordpress.com/2019/11/30/neopixelgram-esp8266-micropython-neopixe...
by Lepeshka
Sun Oct 27, 2019 5:27 pm
Forum: Hardware Projects
Topic: TelegaGraph
Replies: 8
Views: 4697

Re: TelegaGraph

I build micropython firmware v1.11 for wemos d1 mini with increased buffer and upload to github. Burn firmware, upload files, upload urequests (i forget to add it to firmware).
by Lepeshka
Mon Mar 26, 2018 8:24 am
Forum: Hardware Projects
Topic: TelegaGraph
Replies: 8
Views: 4697

Re: TelegaGraph

pythoncoder wrote:
Mon Mar 26, 2018 6:13 am
I like it :D I wonder if there's scope for saving power by switching off the DC supply to the printer until a message arrives?
Printer can be put into energy-saving mode until arrival of a new message
by Lepeshka
Sun Mar 25, 2018 3:11 pm
Forum: Hardware Projects
Topic: TelegaGraph
Replies: 8
Views: 4697

TelegaGraph

TelegaGraph prints messages from Telegram Bot on a thermal printer only with ESP8266. It is only the first version. The code is not the best, but I would like to have something to work. Used board Wemos D1 mini firmware Micropython v.1.9.3 I wrote a basic library for working with bot api Telegram. I...