This project is a small automatic cooling system for home theater rack. It supports 2 temperature sensors for different zones in the rack and 2 12V PWM fans (standard for PC case cooling).
There is a power switch connector for a switch mounted on the casing (will be designed and 3D printed later). A reset button is provided mostly for reprogramming purpose. There are 4 buttons for setting up temp...
In this project, I will go through the process of designing and making a flight controller board from scratch for a micro-quadcopter. This board will be based on the ATMega328 microcontroller and will be used to control four coreless DC motors. The whole PCB making process from designing of the schematic to [**custom circuit board**] is done using EasyEDA. If you are interested in the circuit p...
Panoramic photo robot with Bluetooth control, based on Arduino MEGA 2560
Since everything in this schematic is either public or super simple I leave it as public too.
**NOT for commercial use!**
This project of mine has just been started so there is no firmware nor software (PC, Android) available yet. Currently I don't plan to make it public like the Arduino shield design.
If you like the s...
For an easier use of the WT588-D module with Arduino, it was decided to create a special Shield, this allows to test the module connected to Arduino or stand-alone mode as there are also K1 to K4 keys. There is also a connector for direct connection of a loudspeaker and a connector for connecting an external amplifier.
For programming the internal memory of the WT588 module, there is a connector f...
The PCB attaches to the back of the OP-320A unit, which is a cheap operator console panel you can get off aliexpress or ebay for about $50, you remove the PCB with the unit and attach this as a replacement to give arduino compatibility.
Wiring mostly copied from teensy++ and uno so something of a mix here, Uses a standard Arduino shield header but you will definitely need to adjust your sketch...
An Arduino Micro based automatic plant watering system.
1. Capacitive soil moisture sensing
2. Configurable minimum and maximum soil dryness setting
3. Water overflow sensing
4. Reservoir water level sensing
5. ESD protection on external sensors
6. Reverse and over voltage protection
7. Over current protection
T12 Quick Heating Soldering Station featuring
- Temperature measurement of the tip
- Temperature control via rotary encoder
- Boost mode by short pressing rotary encoder switch
- Setup and calibration menu by long pressing rotary encoder switch
- Handle movement detection (by checking ball switch)
- Iron unconnected detection
- Time driven sleep/power off mode if iron is unused (movement detection...
(still work in progress, not fully tested)
A smart MIDI box based on a STM32 "blue pill" microcontroller (STM32F103C8T6).
Software is hosted on Github: https://github.com/retro16/MidiBox
Uses a HD44780 16x2 LCD screen with the usual I2C converter.
The interface is made of 4 push buttons arranged in a directional pad (up, down, left, right).
A SD card can be attached for more features.
EasyEDA project for simple and quick assembly of the "SWR-mouse" antenna analyzer adapted for installation in the [G403 case (Gainta Industries)]. The project includes the "SWR-mouse" antenna analyzer schematic and the PCB file. Version for mounting SMD components.
## Current development progress:
12V 50Ω solenoid driver. Can be chained to control more than eight solenoids.
The solenoid driver uses a shift register with a latch to control its outputs such that a singe microcontroller (e.g. Arduino) can control large amounts of solenoids whilst only requiring 3 output pins.
- Too big thermals reliefs on; U1-pin8, R12..R15, R24..R27 (they cool too quickly while solder...