dbdness

Digispark ATTINY85 Initial Setup on macOS + Hello World

Originally written in January 2021.

Originally written for macOS Big Sur 11.1

Step 1: Acquire a DigiSpark ATTINY85 Board

Board used for this guide is the Kickstarter version.

Step 2: Download the Arduino IDE

Version at the time of writing is 1.8.13

hfreire

# Install QEMU OSX port with ARM support
sudo port install qemu +target_arm
export QEMU=$(which qemu-system-arm)

# Dowload kernel and export location
curl -OL \
https://github.com/dhruvvyas90/qemu-rpi-kernel/blob/master/kernel-qemu-4.1.7-jessie
export RPI_KERNEL=./kernel-qemu-4.1.7-jessie

# Download filesystem and export location

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

vasmani

#include <Event.h>
#include <Timer.h>
#include <SPI.h>
#include <LiquidCrystal.h>
#include <dht.h>

#define ledpin_red 13        //Arduino output pin for Shift Light Red led 

#define BT_CMD_RETRIES 5     //Number of retries for each Bluetooth AT command in case of not responde with OK
#define OBD_CMD_RETRIES 20    //Number of retries for each OBD command in case of not receive prompt '>' char

gre

/*
 * This work is free. You can redistribute it and/or modify it under the
 * terms of the Do What The Fuck You Want To Public License, Version 2,
 * as published by Sam Hocevar. See the COPYING file for more details.
 */
/*
 * Easing Functions - inspired from http://gizma.com/easing/
 * only considering the t value for the range [0, 1] => [0, 1]
 */
EasingFunctions = {