UPDATE after filming demo:
Commodore font and better logo.
(Font also in info screen)
50000+ Songs / 1600+ Artists
Controls:
TODO:
A week ago I got the last components delivered to my doorstep.
This project was made by Silvervest and it’s f*ckin awesome.
https://github.com/silvervest/c64pico
I was afraid to start this myself, SMD is on another level for me.
But my good friend Marco said … No problem!
So I ordered components online, which was not easy.
Selecting the correct parts, sizes and options.
These things are really really small
Using tweezers to place the components was even difficult.
The slippery tiny bastard got catapulted everywhere. (Or got stuck on fingers, soldering iron and alike)
Many small components got lost into the 7th dimension. Never to be found again.
Awesome to work on this together, but Marco said that I have to try it myself.
Welllll, I got 3/4 of the ATmega328PB-A perfectly soldered, then I notished that it was crooked.
Desoldering was a mess, and I heated the PCB TOO much with the heatgun.
Next step for me is soldering the 75 mini buttons!
Got a Trinitron display from him, I was looking for this for a long time.
This time I used a rub with the following ingredients:
Seasalt, garlic, brown sugar, mustard seeds, paprica, cilantroseeds, black pepper, red pepper, oregano, thyme and cumin.
Doing a simple 3-2-1 smoke session, so .. what to do in dose 6 hours?
Lets make something using a Sense hat and Python.
Same HAT I used for my xmas ornament thingy in our tree.
Now I have to paint my ribs with BBQ sauce, and leave it in the smoker for yet another hour. (Nice glazing)
Next steps for the maze:
Use a better way to generate (reverse backtracking as I made for my other maze thing)
Wall collision detection is nearly completed.
Better placement “birth” of player in the maze.
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# R D . . . . . R D . . . . R R D R D #
# D L . . . . . U D . . . . U . R U D #
# D . . . . R R U R D . . R U U L . D #
# R D . . . U . . . R R D U . . U L D #
# . R D R R U . . . . . D U . . . U L #
# . . D U L . . . . . D L U . . . . . #
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(And some WIP)
A little starfield demo
followup on : https://www.henriaanstoot.nl/2024/01/26/raspberry-pico-with-st7789v2-display-3d-control/
Some other stuff
See links below
The smoking monitoring thingy is a new version of my (never posted) BBQ watch.
While ordering components for a mini C64 project I’m doing with my friend Bigred, I ordered a cheap ST7789-v2 display.
I want to make a generic pico gadget with a display, buttons and sound.
This to make a mini device for writing micropython demos.
The 3 tactical buttons are controlling the X,Y and Z axis of the rotating Cube.
Pinout:
| PICO | DISPLAY |
| GP2 | Tactical switch (other side to 3v3) |
| GP3 | Tactical switch (other side to 3v3) |
| GP4 | Tactical switch (other side to 3v3) |
| GP9 | CS1 |
| GND | GND |
| 3v3 | VCC |
| GP18 | SCL (SPI clock) |
| GP19 | SDA (MOSI / SPI Data) |
| GP20 | RES (reset) |
| GP17 | DC (data command) |
| GP16 | BLK (backlight) |
I know it says SCL/SDA (i2c) but it’s SPI controlled.
Used library : https://github.com/russhughes/st7789_mpy/tree/master
Some 3D explanation I drew a long time ago.
Using python you can use the Math funtions. (sin/cos)
Note: these are in radians!
print(math.sin(math.radians(30))) # 30 degrees
When using MachineCode you can use lookup tables.
These are generated tables which hold precalculated sin data for every degree.
You don’t have to use both cos and sin! (these are just 90 degrees shifted!)
Erik and I used a little basic program to generate an ASM include file like this
Costab LABEL BYTE DB 0B4h,0B4h,0B4h,0B4h,0B4h,0B3h,0B3h,0B3h,0B2h,0B2h,0B1h,0B1h,0B0h,0AFh,0AFh DB 0AEh DB 0ADh,0ACh,0ABh,0AAh,0A9h,0A8h,0A7h,0A6h,0A5h,0A4h,0A2h,0A1h,0A0h,9Eh,9Dh,9Bh DB 9Ah,98h,96h,95h,93h,91h,90h,8Eh,8Ch,8Ah,88h,86h,84h,82h,80h,7Eh DB 7Ch,7Ah,78h,76h,74h,72h,70h,6Eh,6Ch,69h,67h,65h,63h,61h,5Eh,5Ch DB 5Ah,58h,56h,53h,51h,4Fh,4Dh,4Bh,48h,46h,44h,42h,40h,3Eh,3Ch,3Ah DB 38h,36h,34h,32h,30h,2Eh,2Ch,2Ah,28h,26h,24h,23h,21h,1Fh,1Eh,1Ch DB 1Ah,19h,17h,16h,14h,13h,12h,10h,0Fh,0Eh,0Dh,0Ch,0Bh,0Ah,09h,08h DB 07h,06h,05h,05h,04h,03h,03h,02h,02h,01h,01h,01h,00h,00h,00h,00h DB 00h,00h,00h,00h,00h,01h,01h,01h,02h,02h,03h,03h,04h,05h,05h,06h DB 07h,08h,09h,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh,10h,12h,13h,14h,16h,17h,19h DB 1Ah,1Ch,1Eh,1Fh,21h,23h,24h,26h,28h,2Ah,2Ch,2Eh,30h,32h,34h,36h DB 38h,3Ah,3Ch,3Eh,40h,42h,44h,46h,48h,4Bh,4Dh,4Fh,51h,53h,56h,58h DB 5Ah,5Ch,5Eh,61h,63h,65h,67h,69h,6Ch,6Eh,70h,72h,74h,76h,78h,7Ah DB 7Ch,7Eh,80h,82h,84h,86h,88h,8Ah,8Ch,8Eh,90h,91h,93h,95h,96h,98h DB 9Ah,9Bh,9Dh,9Eh,0A0h,0A1h,0A2h,0A4h,0A5h,0A6h,0A7h,0A8h,0A9h,0AAh,0ABh,0ACh DB 0ADh,0AEh,0AFh,0AFh,0B0h,0B1h,0B1h,0B2h,0B2h,0B3h,0B3h,0B3h,0B4h,0B4h,0B4h CosTabE LABEL BYTE Basic: 0 DEF SEG = &H7000: c = 0 1 pi = 3.14159265# 2 FOR x = 0 TO 2 * pi STEP 2 * pi / 256 3 d = COS(x) * 127 + 127 4 POKE c, d: c = c + 1: NEXT
Most i learned from a book called “Art of Graphics”
(This is image of the book from the internet, i don’t think I still got my copy somewhere.
Display case almost done.
Raspberry 1-3 different versions RP400, compute module, zero’s, pico, RP2040 (trinkey). (2012-2023)
I’ve got to many arduino clones, so only atmeta328p, uno, mega, nano ..
And a esp32 esp8066 plus a wemos mini (i use these a lot)
The Arduino’s will have to make place for other Raspberry stuff at a later time.
These all work, so this is also my stock.
When needed for a project, I will have some spares.
I started a little case for a collection of Raspberry devices.
Over the years, many Raspberries were designed and made.
It all started in 2012
I want to have a case with all RP’s i’ve used.
There are many iterations of the RPi, I’m missing a lot now. If you want to help me, send me old/broken raspberries to get the collection complete!
This is the case at the moment
The case isn’t glued together yet. I’m not sure how and what to include.
Get information about your RPi version
curl -L https://perturb.org/rpi?rev=$(awk '/^Revision/ { print $3 }' /proc/cpuinfo)
So many things to try .. and probably buy.
I’m lucky to have this already, official it’s not even out yet.
Specification
Features:
Some things come to mind to test:
You really want to use a case with an active blower to cool the rpi.
Measurements without cooling:
Flir info https://www.henriaanstoot.nl/2023/06/05/checking-faulty-chips-hardware/
I didn’t have a image for Raspberry OS 5 at first, so I took a rpi 4 version and first replaced files in /boot
(Device Tree blob files)
Now at least i could boot into an OS.
Later I got a link to the Alpha boot images, this greatly improved usability and speed 🙂
Made a little overview website:
My game is almost playable.
Still one story but with many different playmodes and outcomes.
Some website screenshots. There are many more, but they give away to much.
Fingerprints are random generated, worldmap also.
Photos of people are AI generated.
Busy day: I’ve airbrushed some 3D pieces a few days ago, but i need 50 or so more.
Meanwhile is was reinstalling octoprint, and making a new version of my Bluetooth page flipper. (Android Music Sheet Pedal Thingy. Which i also didn’t post apparently)
But the main project was this:
I was curious how fast the stepper motors are on my laser cutter. And for what can we utilize this!
So I took a Raspberry Zero and some rotary encoders, lets make an etch-a-sketch like thingy.
Next to do: 3D print a pen holder, and alter the code to enable the laser when moving!
CODE
Below code uses a simple rotary class, and generates control GCodes for the steppers/Sculpfun
import time
import serial
import RPi.GPIO as GPIO
from encoder import Encoder
def valueChanged(value, direction):
print("* New value: {}, Direction: {}".format(value, direction))
GPIO.setmode(GPIO.BCM)
e1 = Encoder(20, 21, valueChanged)
e2 = Encoder(16, 12, valueChanged)
x = 0
y = 0
arduino = serial.Serial('/dev/ttyUSB0', 115200, timeout=.1)
newx = 0
mystringx = ""
newy = 0
mystringy = ""
arduino.write(str.encode("G00 G17 G40 G21 G54\r\n"))
arduino.write(str.encode('G90\r\n'))
arduino.write(str.encode('M4\r\n'))
arduino.write(str.encode('M8\r\n'))
arduino.write(str.encode('G0 X41.5Y36.05\r\n'))
arduino.write(str.encode('M3\r\n'))
#arduino.write(str.encode('G91\r\n'))
arduino.write(str.encode('G1 X2.5F6000S0\r\n'))
arduino.write(str.encode('G1 X0\r\n'))
arduino.write(str.encode('G1 Y0\r\n'))
try:
while True:
data = arduino.readline()[:-2] #the last bit gets rid of the new-line chars
if data:
print (data)
arduino.write(str.encode("G1 F10000\r\n"))
newx=e1.getValue() *5 + 100
newy=e2.getValue() *5 + 100
mystringx=f"G1 X{newx}\r\n"
mystringy=f"G1 Y{newy}\r\n"
# print(mystringx)
arduino.write(str.encode(mystringx))
arduino.write(str.encode(mystringy))
except Exception:
pass
GPIO.cleanup()