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airquality_monitor

Home-built Air Quality Monitor - CO2, Gas (NOx, VOC), Particulates, Temperature, Humidity, Pressure and Ambient Light

arpirobot-camerastreaming

Low latency, real-time camera streaming using a Raspberry Pi.

bigbluebox

An Inventory Management System for a NYLT Course or other Boy Scout Programs

diagramexample

A simple example using libavoid from project Adaptagrams to route connections between objects. Developed on Windows 7 against Qt 5.7 using the MinGW5.3 compiler.

esp-temperature-control

Simple program for ESP32 SoC for reading data from temperature sensor and periodically sending them over MQTT client. Project is used as sample hardware producer in IoT Dashboard guide.

esp32-4-channel-relays

PCB design four channel relays with ESP32-WROOM-32

esp32-cam_mjpeg2sd

ESP32 Camera motion capture application to record JPEGs to SD card as AVI files and stream to browser as MJPEG. If a microphone is installed then a WAV file is also created. Files can be uploaded via FTP or downloaded to browser.

esp32-fan-controller

ESP32 fan controller with temperature sensor and MQTT

esp32-multi-channel-relay-controller

An ESP32 is used to control 4-relay channels with Web UI for the timer settings. The timers are 7-day 4-events per day

esp32-s3_co2_monitor

This is the wall charger mount version

factorymanagment

This is an inventory management system for a factory that manufactures plastic products

farm-data-relay-system

A system that uses ESP-NOW, LoRa, and other protocols to transport sensor data in remote areas without relying on WiFi.

hv-piezo-driver

Safe and compact low power high voltage controller for piezoelectric actuators

hydroponics-controller

Using an ESP32, relays, a water pump and a TDS sensor to monitor an hydroponics tower

i2c-lcd

Embedded system c-code for I2C-connected character LCD displays such as AQM0802 (Beaglebone Black, Raspberry Pi, ...)

info_inventree

helpers to easyly run Inventree on Raspberry Pi x64

inventory

A QT Based inventory management for a small organization

inventory-management

Inventory management tool based on Qt/SQLite. 基于 Qt/SQLite 的库存管理工具。

lilygo-t-relay

nodeeditor

Qt Node Editor. Dataflow programming framework

ov7670-verilog

Verilog modules required to get the OV7670 camera working

picow-air

Pico W Air Quality Monitoring w/ PM 2.5 Sensor

pidkiln

Kiln PID controller based on Espressif Systems ESP32 chip board with Arduino IDE.

qt-qrcode

Qt/C++ library for encoding and visualization of data in a QR Code symbol

qtorm

Object-Relational Mapping Module for Qt

qtqrencode

Qt 5 wrapper and renderer for the qrencode library.

quickpid

A fast PID controller with multiple options. Various Integral anti-windup, Proportional, Derivative and timer control modes.

qzxing

Qt/QML wrapper library for the ZXing library. 1D/2D barcode image processing library

raspbian-csi-stream

low latency rpi csi camera stream using opencv, flask, libcamera-vid

sc16is750_breakout

SC16IS750 Breakout, available from SparkFun Electronics