Try the component at viewtopic.php?f=3&t=981&hilit=Max7219
Martin
Search found 907 matches
- Tue May 21, 2024 2:51 pm
- Forum: Feature Requests
- Topic: 4x8x8 7219 led matrix board i2c
- Replies: 2
- Views: 52
- Sat May 18, 2024 10:24 pm
- Forum: User Components
- Topic: DF player
- Replies: 4
- Views: 730
Re: DF player
The 'new' boards are marked v0.5.1 will have to google see if they need anything different to the old..
- Sat May 18, 2024 10:03 pm
- Forum: User Components
- Topic: DF player
- Replies: 4
- Views: 730
Re: DF player
Just had a play at getting one of these to work (I had an idea for a project using one and had just got two new boards from Temu). This didn't seem to work with an Arduino - and I swapped to an esp32 (for 3.3V) and still nothing. I used the component from the above link (and a simple initialise, Pla...
- Thu May 16, 2024 7:03 pm
- Forum: User Components
- Topic: DF player
- Replies: 4
- Views: 730
- Wed May 15, 2024 10:36 pm
- Forum: Projects - Embedded
- Topic: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
- Replies: 4
- Views: 419
Re: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
From the esp 32 to PuTTY. The flowcode compiled and then runs the brainf**k program..
Cool considering the only instructions are +1, - 1, next cell, previous cell, loop and print!
Turing complete!
Cool considering the only instructions are +1, - 1, next cell, previous cell, loop and print!
Turing complete!
- Wed May 15, 2024 9:47 pm
- Forum: Projects - Embedded
- Topic: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
- Replies: 4
- Views: 419
- Wed May 15, 2024 7:45 pm
- Forum: Projects - Embedded
- Topic: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
- Replies: 4
- Views: 419
Re: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
Changing the check on 'tim' in ExecuteBF to every 500000 loops gives a very nice speedup and still no wdt problems... and just tried 1000000 with a 50ms delay and all good too! - now up to 5000000 bf instructions before delay! Compiling optimised for performance (idf.py menuconfig) gives a little ex...
- Wed May 15, 2024 7:26 pm
- Forum: Projects - Embedded
- Topic: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
- Replies: 4
- Views: 419
Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
I posted a simple Brainf**k compiler a few days ago. I had an idea for a major improvement - rather than a (rather large) jump table - I would compile the jumps into the program code. Now jumps add 4 bytes per loop rather than a fixed table of 40k :-) So - with a little fiddling I got the mandelbrot...
- Sun May 12, 2024 4:13 pm
- Forum: Bug Reports
- Topic: SR04 Ultrasonic Sensor
- Replies: 13
- Views: 898
Re: SR04 Ultrasonic Sensor
That's one good looking lab. How goes the trs-80? And where did you hire the apprentice
- Sun May 12, 2024 8:56 am
- Forum: General
- Topic: IOT_Made_Easy - or not?
- Replies: 30
- Views: 1535
Re: IOT_Made_Easy - or not?
There's no power (easily) - it's the loft of an outbuilding. I don't like going up there - a couple of years ago the ladder 'slipped' an inch and snapped my little finger. Now I avoid ladders whenever possible :-( So the longer the battery lasts the happier I am - or maybe I should just go up and do...