I like mixology
Some pictures of the drinks i’ve made, in the last years.
Most are in my notebook, i can perfect the drink now individually for a person.
I really have to put the names of the drinks on this page.
(And the tasting notes!)
Using Python, Raspberry, a lidar module, a servo, display .. and a 3Dprinted holder.
Proof of concept was to see if it was easy to implement a lidar radar for boat navigation.
#!/usr/bin/env python
import math
import random
import pygame
from pygame.locals import *
import time
import serial
import pigpio
GPIO = 18
ser = serial.Serial("/dev/ttyUSB0", 115200)
pi = pigpio.pi()
distance = 0
pygame.init()
screen = pygame.display.set_mode((480, 320))
while True:
screen.fill((0,0,0))
pygame.draw.circle(screen, (0,128,0), (240,320), 100,1)
pygame.draw.circle(screen, (0,128,0), (240,320), 200,1)
pygame.draw.circle(screen, (0,128,0), (240,320), 300,1)
for deze in range(10,170,5):
count = ser.in_waiting
if count > 8:
recv = ser.read(9)
ser.reset_input_buffer()
if recv[0] == 'Y' and recv[1] == 'Y': # 0x59 is 'Y'
low = int(recv[2].encode('hex'), 16)
high = int(recv[3].encode('hex'), 16)
global distance
distance = low + high * 256
res = distance
#print res
x = res * math.cos(math.radians(deze))
y = res * math.sin(math.radians(deze))
xreal = x + 240
yreal = 320 - y
pygame.draw.line(screen, (0, 255, 0), (240, 320), (xreal, yreal))
pygame.time.wait(15)
pygame.display.flip()
#print(res)
pi.set_servo_pulsewidth(GPIO, deze * 11 + 500)
time.sleep(0.2)
screen.fill((0,0,0))
pygame.draw.circle(screen, (0,128,0), (240,320), 100,1)
pygame.draw.circle(screen, (0,128,0), (240,320), 200,1)
pygame.draw.circle(screen, (0,128,0), (240,320), 300,1)
for deze in range(170,10,-5):
count = ser.in_waiting
if count > 8:
#print count
recv = ser.read(9)
ser.reset_input_buffer()
if recv[0] == 'Y' and recv[1] == 'Y': # 0x59 is 'Y'
low = int(recv[2].encode('hex'), 16)
high = int(recv[3].encode('hex'), 16)
global distance
distance = low + high * 256
res = distance
x = res * math.cos(math.radians(deze))
y = res * math.sin(math.radians(deze))
xreal = x + 240
yreal = 320 - y
pygame.draw.line(screen, (0, 255, 0), (240, 320), (xreal, yreal))
pygame.time.wait(15)
pygame.display.flip()
pi.set_servo_pulsewidth(GPIO, deze * 11 + 500)
time.sleep(0.2)
#pi.set_servo_pulsewidth(GPIO, 0)UPDATE: 20230320 new version
My first version of the Bluetooth page turner.
This was made using an Arduino and some buttons.
I’m using Fbreader and Ebookdroid on the tablet.
Code:
Note: Volume buttons work for both apps, if you want to use other keys, you need to put a keymap.xml file in your fbreader books directory on your android device to remap those!
#include <BleKeyboard.h>
#define RIGHT_TURN 4
#define LEFT_TURN 5
BleKeyboard bleKeyboard("fashpageturner", "Bluetooth Device Manufacturer", 100);
void setup() {
bleKeyboard.begin();
pinMode(LEFT_TURN, INPUT_PULLUP);
pinMode(RIGHT_TURN, INPUT_PULLUP);
}
void loop() {
if (bleKeyboard.isConnected() && !digitalRead(RIGHT_TURN)) {
bleKeyboard.press(KEY_MEDIA_VOLUME_UP);
delay (100);
bleKeyboard.releaseAll();
}
if (bleKeyboard.isConnected() && !digitalRead(LEFT_TURN)) {
bleKeyboard.press(KEY_MEDIA_VOLUME_DOWN);
delay (100);
bleKeyboard.releaseAll();
}
}
NEW Version
Changed stuff in my arpscanner
I want to know whats on my network, and be informed when a alien device connects.
This also helps me gathering all devices and macaddresses for a cmdb.
I’ve got below in my crontab
5 * * * * root /usr/local/bin/arpscanner
And the script:
#!/bin/bash
# Using a scanner on a specific vlan/interface
arp-scan -l -g -I p1p1.10 | grep ^10 | grep -vi packets > /var/log/arpscanner
cat /var/log/arpscanner | awk '{ print $2 }'| while read ; do
grep $REPLY /var/local/arpscanner.lst >/dev/null || echo $REPLY | mail -s arpscanner henri@henriaanstoot.nl
done
New and checked devices i put in the file mentioned above:
/var/local/arpscanner.lst
00:21:5d:gg:gg:7a Description
ac:67:b2:gg:gg:a0 Liligo Twatch
b8:27:eb:gg:dd:fd Nieuwe octoprint
d8:f1:5b:gg:gg:4a WLAN Dungeon
48:3f:da:gg:gg:fe Uboot ESP
8e:93:79:gg:gg:5d Tablet Monique
d8:f1:5b:gg:gg:06 ESP Radar
dc:a6:32:gg:gg:fb RPI4
00:1e:ec:gg:gg:ab laptop
68:05:ca:gg:gg:68 storage bak
etcetera
Today i started with Coursera’s Machine Learning course.
My friend aloha is doing interesting stuff with ML, but recently i’ve been interested in a work related ML project.
Besides this course i’m following a spotify Podcast called “Machine Learning Guide”, i listen to this on my way to work and back.
I’ve been playing with a lot of code after that. Luckily there are many ebooks about this subject.
UPDATE: In 2022 i used what i have learned to enrich my photo metadata.
https://www.henriaanstoot.nl/2022/05/29/photo-manager-addition-using-ml/
Playing two chanters at the same time.
Made a bagpipe octopus
I think it was Burns Night 2005. We took one pipebag, took the drones out. And added one blowpipe and three chanters.
We were struggling to play the damn beast with 4 people.
A picture should exist somewhere, add it when found.
Smallpipe adaptor for two chanters.
Xmas tree lights in the drones
I’ve seen some do this, but never with xmas balls also.
Playing the THX sound
Alternative playing
Above in the movie with two chanter you can see tape.
You can tape other notes, for accidentals.
I’ve started a set with our folkband with my hands reversed.
(Left on the bottom part of the chanter, right hand toppart)
After playing amazing grace, I switched hands every few bars.
Playing high A gracenote with tophand index finger.
Play a tune and slide bottomhand over your top hand down.
Tape or block the bottom sound holes.
Playing with the holes on the inside
Music by Ludovico Einaudi, pianist Jeroen van Veen.
And you could lie down in the big “Werkspoorkathedraal” in Utrecht.
Ludovico Maria Enrico Einaudi (Italian: born 23 November 1955) is an Italian pianist and composer. Trained at the Conservatorio Verdi in Milan, Einaudi began his career as a classical composer, later incorporating other styles and genres such as pop, rock, folk, and world music.
Einaudi has composed the scores for a number of films and television productions, including This Is England, The Intouchables, I’m Still Here, the TV miniseries Doctor Zhivago, and Acquario (1996), Nomadland and The Father.
He has also released a number of solo albums for piano and other instruments, notably I Giorni in 2001, Nightbook in 2009, and In a Time Lapse in 2013.
Coline plays some of Einaudi on keyboard, and we play I Giorni with our Folkband.
Update 2023
We love fermenting!
Sometimes we ferment our own sauerkraut.
Depending on the volume it can take at least 2 weeks up to several months.
If you don’t have crock pot weights, use a plastic bag filled with water.
(See below)
Mixture: Salt, juniper berries, dill, celery seeds and caraway.
Some books about the subject we own
This little script I made for work.
It allows for a webpage to being shared and updated semi realtime.
We made todo notes using it.
Extract below zip file in a subdirectory in your web accessible server.
https://media.henriaanstoot.nl/edit.tgz
It uses a jquery rich text editor javascript library.
Today i used some analog meters to display cpu load and memory usage.
Using below 12 bit DAC (MCP4725 ) and a Wemos Mini
Usage: (Anything you can come up with, if you got a value, you can display it)
curl http://IP/specificArgs?dac_value=$(grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*1000} END {print usage }' |cut -f1 -d.)
Arduino code
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include <Wire.h>
#include <Adafruit_MCP4725.h>
#define MCP4725 0x62
unsigned int adc;
byte buffer[3];
Adafruit_MCP4725 dac;
char dac_value_tmp[6] = "0";
int dac_value = 0;
ESP8266WebServer server(80); //Web server
void setup() {
Wire.begin();
Serial.begin(115200);
WiFi.begin("accesspoint", "accesspointpass");
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.println("Waiting to connect…");
}
Serial.print("IP address: ");
Serial.println(WiFi.localIP()); //Print IP
server.on("/genericArgs", handleGenericArgs);
server.on("/specificArgs", handleSpecificArg);
server.begin(); //Start the server
Serial.println("Server listening");
dac.begin(0x60); // The I2C Address
}
void loop() {
uint32_t dac_value;
int adcValueRead = 0;
float voltageRead = 0;
server.handleClient();
}
void handleGenericArgs() { //Handler
String message = "Number of args received:";
message += server.args(); //Get number of parameters
message += "\n";
for (int i = 0; i < server.args(); i++) {
message += "Arg nº" + (String)i + " –> ";
message += server.argName(i) + ": ";
message += server.arg(i) + "\n";
}
server.send(200, "text/plain", message);
}
void handleSpecificArg() {
String message = "";
if (server.arg("dac_value")== ""){ //Parameter not found
message = "dac_value Argument not found";
}else{
message = "dac_value = ";
message += server.arg("dac_value"); //Gets the value of the query parameter
int dac_value = server.arg("dac_value").toInt();
Serial.print("DAC Value: ");
Serial.print(dac_value);
buffer[0] = 0b01000000;
buffer[1] = dac_value >> 4; //Puts the most significant bit values
buffer[2] = dac_value << 4; //Puts the Least significant bit values
Wire.beginTransmission(MCP4725); //Joins I2C bus with MCP4725 with 0x61 address
Wire.write(buffer[0]); //Sends control byte
Wire.write(buffer[1]); //Sends the MSB to I2C
Wire.write(buffer[2]); //Sends the LSB to I2C
Wire.endTransmission(); //Ends the transmission
}
server.send(200, "text/plain", message); //Returns the HTTP response
}
Resistor depends on the range of your analog meters