sqlite_micro_logger_arduino
scintillating_heatshrink
| sqlite_micro_logger_arduino | scintillating_heatshrink | |
|---|---|---|
| 2 | 4 | |
| 161 | 15 | |
| - | - | |
| 3.3 | 0.0 | |
| 8 months ago | almost 4 years ago | |
| C | C | |
| Apache License 2.0 | - |
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sqlite_micro_logger_arduino
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Can an RFID card or keychain tag be programmed for a single use?
There is a tiny SQLite library for Arduino that works with SD cards. I haven't used it myself, but it's probably easier to get an Arduino right now than it is to get a Pi, so it might be worth investigating.
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Inserting One Billion Rows in SQLite Under a Minute
Potentially interesting:
https://github.com/siara-cc/sqlite_micro_logger_arduino
https://github.com/siara-cc/sqlite_micro_logger_arduino/blob...
This is a heavily subsetted implementation of SQLite3 that can read/write databases (presumably on SD cards) from very small microcontrollers.
It presumably doesn't have the same ACID compliance properties, but with a single <1.5k source file, may represent a particularly efficient way to rapidly learn the intrinsics.
Now I'm thinking it could actually be interesting to see what drh thinks of this implementation (and any gotchas in it) because of its small size and accessibility.
scintillating_heatshrink
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Here's a few animations on a 24x24 matrix with an accompanying github repo in description
Two ways 1. Decode gifs in mcu(requires good mcu) https://github.com/pixelmatix/AnimatedGIFs 2. Encode gif to good for mcu format https://github.com/sutaburosu/scintillating_heatshrink
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Image array into ESP32
It's right there in the root folder of that repo. It's no use by itself though; it converts to a custom format that only the included sketch can play back.
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Is it possible to switch to another pre-built palette using pointers?
Perhaps this would suffice?
What are some alternatives?
fast-sqlite3-inserts - Some bunch of test scripts to generate a SQLite DB with 1B rows in fastest possible way
picojpeg - picojpeg: Tiny JPEG decoder for 8/16-bit microcontrollers
remixdb - RemixDB: A read- and write-optimized concurrent KV store. Fast point and range queries. Extremely low write-amplification.
sail - The missing small and fast image decoding library for humans (not for machines) ⛵ https://sail.software
TTS - Arduino Text-to-Speech Library
tree - Something for the yard.
sqlitedatagen - Super simple (~180 lines) Go util to generate SQLite data files filled with test data
tiltuino - Arduino based Brewfather integration for the Tilt Hydrometer V2
ESP-Arduino-Lua - Lua scripting engine integrated in Arduino IDE as a Library for ESP8266/ESP32
RFLink - RFLink for ESP, with MQTT client
brimming - Row Stuffing