manio

#!/bin/sh
# this is a sample script which is testing if there is available ESSID on the WiFi
# and according to the result it is starting/stopping aawgd
# more info: https://github.com/nisargjhaveri/WirelessAndroidAutoDongle/issues/212#issuecomment-2692423007

delaytime=5
essid="searchedAPName"

while [ true ]; do
    wifiavail='iw dev wlan0 scan|grep SSID'

manio

use std::error::Error;
use std::io;

use rppal::gpio::{Gpio, Trigger}; // 0.16.1

pub const BTN1: u8 = 13;
pub const BTN2: u8 = 4;

fn main() -> Result<(), Box<dyn Error>> {
    let mut btns = [

manio

# as in title - you have no `man` installed but sometimes you need to quick search for a manual page
# add this to your .zshrc

man() {
  xdg-open https://man.archlinux.org/man/$1   
}

manio

# This is a systemd service file to be able to monitor battery level on a windows laptop
# The Windows side is described in this gist:
# https://gist.github.com/manio/95ad95dc5eba708b12d658f2e6f478ea
# This unit is listening on specified UDP port and it is writing data
# to specified output file. It is overwriting the data with every new
# UDP frame.

[Unit]
Description=laptop battery monitoring daemon
After=local-fs.target

manio

# ABOUT:
# I needed to have a battery level percentage of my Windows laptop reported to a linux host somehow.
# I am then able to monitor this value and automate switching ON/OFF power supply to keep the laptop
# battery charged in ranges about 20-80%, totaly automatically

# first you need to download this helper script for sending UDP:
# https://gist.githubusercontent.com/PeteGoo/21a5ab7636786670e47c/raw/30cc9ca860154429bcef500fa2d0e96811ad0292/Send-UdpDatagram.ps1

# the scripts neeed to be "unblocked" to be able to run from PowerShell using this method:
#dir .\battery_level.ps1|block-File

manio

/*
  The following snipset is for reading the AJ-SR04M (JSN-SR04T compatible) ultrasonic distance sensor
  under rust (esp-rs + embassy).
  It is intended for mode 0 (which is the default) and it is counting the resulting echo pulse timing.
  Finaly the useconds value is converted to centimeters value.

  ESP32 wiring:
   Vcc -> 5V
   Trigger -> GPIO 19
   Echo -> GPIO 21 (via level shifter)

manio

diff --git a/fp-lib-table b/fp-lib-table
index b7032ccc..43ccd284 100644
--- a/fp-lib-table
+++ b/fp-lib-table
@@ -98,6 +98,7 @@
   (lib (name Sensor_Current)(type KiCad)(uri ${KISYSMOD}/Sensor_Current.pretty)(options "")(descr "Specialized footprints for current sensors"))
   (lib (name Sensor_Motion)(type KiCad)(uri ${KISYSMOD}/Sensor_Motion.pretty)(options "")(descr "Specialized footprints for motion sensors"))
   (lib (name Sensor_Pressure)(type KiCad)(uri ${KISYSMOD}/Sensor_Pressure.pretty)(options "")(descr "Specialized footprints for pressure sensors"))
+  (lib (name Sensor_Temperature)(type KiCad)(uri ${KISYSMOD}/Sensor_Temperature.pretty)(options "")(descr "Specialized footprints for temperature sensors"))
   (lib (name Sensor_Voltage)(type KiCad)(uri ${KISYSMOD}/Sensor_Voltage.pretty)(options "")(descr "Specialized footprints for voltage sensors"))

manio

//Sample program to obtain a humidity from DS2438
//more info:
//https://skyboo.net/2017/03/ds2438-based-1-wire-humidity-sensor/
//compile with: gcc -o humid get_humid.c

#include <stdio.h>

void get_humidity()
{
  FILE *fp;

manio

# fs_prepare.sh
# more info: https://skyboo.net/2017/04/rpi-creating-a-ram-disk-running-linux-environment-from-nfs-booted-raspbian/

set -x
mkdir -p /usr/lib/arm-linux-gnueabihf
mkdir -p /lib/arm-linux-gnueabihf
cp /old_root/usr/lib/arm-linux-gnueabihf/libarmmem.so /usr/lib/arm-linux-gnueabihf
cp -P /old_root/lib/arm-linux-gnueabihf/libutil* /lib/arm-linux-gnueabihf
cp -P /old_root/lib/arm-linux-gnueabihf/libcrypt* /lib/arm-linux-gnueabihf
cp -P /old_root/lib/arm-linux-gnueabihf/libnss_files* /lib/arm-linux-gnueabihf

manio

#!/bin/sh
# a sample /etc/init.d/rcS script
# more info: https://skyboo.net/2017/04/rpi-creating-a-ram-disk-running-linux-environment-from-nfs-booted-raspbian/

set -x
#prepare a new RAM filesystem copying needed libraries and binaries from the old fs
/old_root/fs_prepare.sh
#ssh server
/usr/sbin/dropbear -s
#convert the openssh key to the dropbear format