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...
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...
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...
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...
The lates update is replacing IRF9540 with AO34I9L in tiny SOT23-3 body. I ran a test on a prototype for a few hours with maximum brightness. AO34I9L works just fine, I didn't noticed temperature raise.
This is a second version of Christmas Tree Controller. It is using Arduino Pro Mini and two TLC5940
For LED wiring refer to "Christmas Tree LED Wiring" project, LED v2
Program for Arduino is not f...
TinyProbe is a very simple 5V logic probe for TTL and CMOS logic based on ATtiny13a. The probe can detect high (HI), low (LO), floating (FL) and oscillating (OS) signals and displays them via four LEDs.
Project Video: https://youtu.be/mwY1OOxqLTI
**[Buy ready to play ESPboy at Tindie.com](https://www.tindie.com/products/18194/)**
- [OSHWA certification record](https://certification.oshwa.org/ru000001.html)
- [Openhardware.io record](https://www.openhardware.io/view/786/ESPboy-Games-IoT-STEM-for-education-and-fun-ESP8266-core)
** ESPboy is an ultimate multi-gadget **
Absolutely open source,...
Infrared Sensor Module has built-in IR transmitter and IR receiver that sends out IR rays and looks for reflected IR rays to detect presence of any obstacle in front of the sensor module. The module has on board potentiometer that lets user adjust detection range. The sensor has very good and stable response even in ambient light or in complete darkness.
It is Arduino and Rasberry Pi compatible b...
so, I'm working on a project and decided it would be nice to have a small pcb for me to work on the communication between two atmega microcontrollers.
I designed as a very small development board with a UART connector to debug the RF24 communication but also so the whole board can be used as a shield, after.
My intentions are that, after I manage the RF stuff, I can use the board to input data...
# 1. Overview #
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 menu by long pressing rotary encoder switch
- Handle movement detection (by checking ball switch)
- Iron unconnected detection (by idenfying invalid temperature readings)
- Time driven sleep/power of...