TiNredmc

# PWM udev rule

SUBSYSTEM=="pwm", ACTION=="add|change", \
        RUN+="/bin/chgrp -R gpio '/sys%p'", \
        RUN+="/bin/chmod -R g=u '/sys%p'"

TiNredmc

SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", SYMLINK+="YDLIDAR", MODE="0666"
SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", SYMLINK+="ESP32", MODE="0666"

TiNredmc

# Don't forget to "sudo groupadd gpio" and "sudo usermod -aG gpio $USER" 

SUBSYSTEM=="gpio", KERNEL=="gpiochip*", ACTION=="add", PROGRAM="/bin/sh -c 'chown root:gpio /sys/class/gpio/export /sys/class/gpio/unexport ; chmod 660 /sys/class/gpio/export /sys/class/gpio/unexport'"
SUBSYSTEM=="gpio", KERNEL=="gpio*", ACTION=="add", PROGRAM="/bin/sh -c 'chown root:gpio /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value ; chmod 660 /sys%p/active_low /sys%p/direction /sys%p/edge /sys%p/value'"

TiNredmc

# ROS2 Remote Point Cloud Processing launch file using depth_image_proc
# Using this with Asus Xtion (no RGB) camera. Orange Pi Prime running Openni2 camera node.
# Original code by 808brick https://github.com/ros-perception/image_pipeline/issues/823
# Modified by TinLethax 2023/07/28 +7

import launch
from launch_ros.actions import ComposableNodeContainer
from launch_ros.descriptions import ComposableNode

def generate_launch_description():

TiNredmc

// 500us Timer interrupt to drive stepper motor.
// Coded by TinLethax 2022/6/17 +7
#define full_rev_step 200
#define motor_pulse 2
volatile uint8_t pulse_tog = 0;
volatile uint16_t pulse_cnt = 0;

#define motor_dir   3
uint8_t dir = 0;

TiNredmc

/* Key scanner to reverse engineer Blackberry Passport keyboard pinout.
 * Coded By TinLethax (Can't remember the date, probably 2022/03/17).
*/
// https://tinlethax.wordpress.com/2022/03/20/reverse-engineering-blackberry-passport-keyboard-pinout-part-2/
// using Arduino Mega's pin 22 to 38
// I updated the Conversion array (from arduino pin to actual connector pin).
// I sacrificed the keyboard (by taking it apart and bought a new one). 
// to probe and get ~70% done with some left to probe with new kerboard (to replace the first one I took apart).
uint8_t toffcpin[16]={
  2, 3, 4, 5, 6, 7,

TiNredmc

# Bashrc setting for F1C100s Buildroot. Just make it more colorful UwU
PS1='\[\e[0;38;5;161m\]\h\[\e[0m\]@\[\e[0;38;5;49m\]\u\[\e[0m\]:\[\e[0;38;5;39m\]\w\[\e[0m\]#'

TiNredmc

#!/bin/bash
# Simple Script to re-seal the BQ27541 or BQ27542
# Coded by TinLethax 2021/06/02 +7

# structure [Control_command0x00][lower byte][higher byte]
# Sending SEAL subcommand cause it to reseal (Sending Big endian )
i2ctransfer -y -f 0 w3@0x55 0x00 0x20 0x00
sleep 1
i2ctransfer -y -f 0 w3@0x55 0x00 0x00 0x00
i2ctransfer -y -f 0 w1@0x55 0x00 r2

TiNredmc

#!/bin/bash
# Simple Script to check SEAL status of the BQ27541 or BQ27542
# Coded by TinLethax 2021/06/02 +7

# structure [Control_command0x00][lower byte][higher byte]
# Sending 0x00 subcommand (Sending Big endian )
i2ctransfer -y -f 0 w3@0x55 0x00 0x00 0x00
i2ctransfer -y -f 0 w1@0x55 0x00 r2
echo Done!

TiNredmc

#!/bin/bash
# Simple Script to Fully Unseal the BQ27541 or BQ27542
# Coded by TinLethax 2021/06/02 +7

# structure [Control_command0x00][lower byte][higher byte]
# Unseal first by writing 0x0414 (Sending Big endian )
i2ctransfer -y -f -a 0 w3@0x55 0x00 0x14 0x04
# Then writing 0x3672 (again, Big endian first)
i2ctransfer -y -f -a 0 w3@0x55 0x00 0x72 0x36
sleep 1