krissen

I've long been searching for a simple display to show various things on HA. I wanted it to be cordless with wireless updates, small in size, and without extra sensors since the values to be displayed are already in HA. It's been hard to find something that matches all that, at a reasonable price.

I just stumbled upon a Reddit thread (since removed), where someone recommended OpenEPaperLink and this seller on Tindie. An access point for $35. Five screens (2.9" or 1.54") for $25; a 4.2" for $20. (It seems many have been looking for the same thing. The seller quickly ran out of stock, but more is on the way; more info at the link above.)

There's a HA integration via HACS.

You'll find my example of an automation that updates humidity and temperature here.

It was easy to get

safijari

IMPORTANT: DON’T USE THIS GUIDE AS IS. GNOME HAS A WEIRD VSYNC ISSUES. Instead you can use the official Debian image and make sure all the updated drivers are installed and the rest should remain the same.

Preamble

This guide is made using the Orange Pi 5B 4GB+32GB. The device is capable of handling a 4k 120hz stream but you should know that the decode time for 4k stream hovers around 8ms and can spike up to 15ms during a benchmark. I can’t feel any added latency from it and I don’t have any dropped frames. The decode time goes down to 4ms for 1440p. It’s certainly not the blazing fast sub ms decode latency we get on the Steam Deck or mini PCs. I bought the device for $99 and for that price I think this performance is fantastic, but your mileage/expecations may vary.

How to get this result (or rather how I got it)

1. Install the official Gnome Ubuntu Jammy image using Balena Etcher onto a 16+ GB microSD card

abmantis

esphome:
  name: m5-atom-matrix
  platformio_options:
    upload_speed: 115200
  on_boot: 
    priority: 700
    then: 
      - output.turn_on: wifi_fix_output

esp32:

Linch1

let pancakeSwapAbi =  [
{"inputs":[{"internalType":"uint256","name":"amountIn","type":"uint256"},{"internalType":"address[]","name":"path","type":"address[]"}],"name":"getAmountsOut","outputs":[{"internalType":"uint256[]","name":"amounts","type":"uint256[]"}],"stateMutability":"view","type":"function"},
];
let tokenAbi = [
{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},
];
const Web3 = require('web3');

/*
Required Node.js

evaletolab

• https://docs.soliditylang.org/en/v0.8.0/cheatsheet.html
• https://tenderly.co/
• https://medium.com/@novablitz/storing-structs-is-costing-you-gas-774da988895e (bits manipulations for storings datas)
• https://docs.ethers.io/v4/api-utils.html#ether-strings-and-wei (units conversions)
• https://github.com/OriginProtocol/security/tree/master/incidents
• https://github.com/crytic/awesome-ethereum-security
• https://github.com/leonardoalt/ethereum_formal_verification_overview
• https://github.com/pouladzade/Seriality
• https://iancoleman.io/bip39/#french
• https://github.com/ConsenSys/surya (solidity inspector)

qcasey

About

This gist will show how to setup a generic SBC Debian / Ubuntu install as a headless Bluetooth A2DP audio sink. This will allow your phone, laptop or other Bluetooth device to play audio wirelessly through a Rasperry Pi.

Motivation

This is forked from another gist specific to the Raspberry Pi on Stretch. A required package isn't in Ubuntu's repos, so in this gist we build it from scratch.

Tested to be working on Armbian/Ubuntu/Debian images of the Orange Pi Zero, ODROID XU4, ODROID N2, and Atomic Pi.

Prerequisites

aveao

Setting up emummc in a nutshell (mostly for linux)

• update atmosphere to 0.9.2 on your microsd. Also ensure that your microSD is MBR, not GPT (gparted calls this msdos).
• if you want to use an old backup, grab those files, you'll need them. If not, boot into hekate, dump raw gpp and boot0/1.
• combine all files on your pc, in the order of boot0, boot1 and rawnand (cat BOOT0 BOOT1 rawnand.bin.00 rawnand.bin.01 rawnand.bin.02 rawnand.bin.03 rawnand.bin.04 rawnand.bin.05 rawnand.bin.06 rawnand.bin.07 rawnand.bin.08 rawnand.bin.09 rawnand.bin.10 rawnand.bin.11 rawnand.bin.12 rawnand.bin.13 rawnand.bin.14 > emummc.bin). Resulting file should be 31276924928 bytes unless you modded your console with a larger (or a smaller) emmc (if you don't know what this is about, then you haven't modded yours).
• create a fat32 partition on your microsd of the same size as the resulting file you just created (can be a bit bigger, do it a bit [100MiB or so] bigger if you want to be safe), dd the combined file to it with

mcfrojd

Latest Update 2021-03-06 : New image showing the new "Services" in Home Assistant and got some tips from the comments below.

Credits and thanks: Home Assistant Forum users & Github users: @ocso, @wiphye, @teachingbirds, @tboyce1, @simbesh, @JeffLIrion @ff12 @rebmemer @siaox @DiederikvandenB @Thebuz @clapbr @Finsterclown

---

Start apps on your android device (in the examples below, my Nvidia Shield TV) from Home Assistant

Starts Youtube App

entity_id: media_player.shield
command: >-

flatz

Remote Package Installer

Package link: https://mega.nz/#!2dN1XajB!Z5fXyFoKOXFI_ujgGoCZfFFy5nyn7OWo6vF6h_HmWhQ

Requirements:
  Any exploit on 4.5x+
  HEN 1.8 (you could get it from zecoxao's page) or any other kernel payload (it just need to have fPKG stuff and /data mount patches for ShellCore that I've posted recently)
  
Changelog:
  [+] Added CORS header to interact with browser's AJAX

shenghaoyang

#1 Update: Recent Rapsberry Pi (downstream) kernel dt-overlays now exposes a config option "krnbt" that negates the need for all this.

Relevant PRs: raspberrypi/linux#3682

Enabling bluetooth

[Pi 3B (Non-Plus) / Pi Zero W ONLY]

As of kernel package, linux-raspberrypi-4.14.59-1, support for notifying the kernel of the