asupawat

#! /bin/bash -x

#
# environment variables affecting the build:
#
# keep_toolchain=y	-- don't rebuild the toolchain, but rebuild everything else
# keep_rootfs=y		-- don't reconfigure or rebuild rootfs from scratch. Would still apply overlay changes
# keep_buildroot=y	-- don't redownload the buildroot, only git pull any updates into it
# keep_bootloader=y	-- don't redownload the bootloader, only rebuild it
# keep_etc=y		-- don't overwrite the /etc partition

asupawat

Google Spreadsheet Script to handle and save POST data

//  1. Enter sheet name where data is to be written below
var SHEET_NAME = "Data";
         
//  2. Run > setup
//
//  3. Publish > Deploy as web app 
//    - enter Project Version name and click 'Save New Version' 

asupawat

# This guide will show you how to configure ddclient to dynamically update your DNS at Cloudflare.
# This cookbook makes use of a number of online guides - all of which I will reference at the end.

# Cloudflare requires ddclient to be version 3.8.2 or you will get a 'cloudflare protocol didn't exist'.
# Unfortunately, the package manager at this time makes use of 3.8.1
# My suggestion is to follow the semi-autonomous process, by downloading the out of date package
# and then manually update a few files. If you prefer, you can go down the fully manual route manual route. 
# Installation - Manual (Not Tested: https://www.cloudflare.com/technical-resources/#ddclient)

# Installation - Semi-Autonomous (Recommended, follow below)

asupawat

# /etc/conf.d/rtc-i2c
#
# My chip is actually a ds3231n, but ds1307 driver works fine (ds3232 does not!)
#
CHIP="ds1307"
ADDRESS="0x68"
BUS="1"

asupawat

var mqtt = require('mqtt'); //https://www.npmjs.com/package/mqtt
var Topic = '#'; //subscribe to all topics
var Broker_URL = 'mqtt://192.168.1.123';
var Database_URL = '192.168.1.123';

var options = {
	clientId: 'MyMQTT',
	port: 1883,
	//username: 'mqtt_user',
	//password: 'mqtt_password',	

asupawat

E.kickWatchdog();
function KickWd(){
  if( (typeof(BTN1)=='undefined')||(!BTN1.read()) ) E.kickWatchdog();
}
var wdint=setInterval(KickWd,2000);
E.enableWatchdog(15, false);

// MIT License (c) 2020 fanoush https://github.com/fanoush
// see full license text at https://choosealicense.com/licenses/mit/
// SPI display driver below compiled with options LCD_BPP=12

asupawat

Access Raspberry Pi from anywhere

Dynamic DNS

We need to use so called Dynamic DNS (DDNS) to create and dynamically update a mapping between a chosen domain name and an “external” IP address of our Raspberry Pi (i.e. router IP address).

• Look for a DDNS provider.
• Register a new user account.
• Choose a desire domain name.
• Configure it on router.

asupawat

#!/bin/bash

# Note: 
#       I have not actually tested this installing into the 
#       chia-blockchain `install.sh` venv as I did not use it
#	      when I installed chia. I have only tested it in a
#       test venv. YMMV!

if [ $# -eq 0 ]
  then

asupawat

Keybase proof

I hereby claim:

• I am asupawat on github.
• I am xnoom (https://keybase.io/xnoom) on keybase.
• I have a public key ASACXupGcX1ZOo6NoG3ddzzo0NxCx9aoSVyFXzoXZvOWMQo

To claim this, I am signing this object:

asupawat

Raspberry Pi 4 CMIO with 2 ov9281 camera sensors

Tested with 2 Arducam "UC-599" and 2 Inno-maker "cam-mipiov9281"

Credits to 6by9 on the raspberrypi forums.

Howto:

1. Connect the jumpers on the J6
2. Download the *.dtbo file to /boot/overlays/
3. Add the line to /boot/config.txt: