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...
A multipurpose LoRa microcontroller board based on the Atmel 328P microcontroller with an RFM95W LoRa module attached. This version also has an onboard solar power LiPo charger for the integrated 18650 LiPo battery.
This is the schematic for a project I've did on my YouTube Channel. Click the image below to check out the video.
[![Arduino Heart Rate Monitor](https://img.youtube.com/vi/iVN3gXZ72P8/0.jpg)](https://www.youtube.com/watch?v=iVN3gXZ72P8)
## Infrared (IR) Remote ##
Here's the pinout for almost every 3-pin IR Receiver:
(Above): a diagram of connecting the receiver to an Arduino.
There are many different manufacturers of IR Receivers and some have different pinouts:
Image courtesy of Alberto Piganti. See: http://www.pighixxx.com/
There is also an easy-to-connect IR Receiver Electronic Brick l...
Atmega chips can consume way less power. It is useful to be able to create your own atmega circuits, instead of using Arduino in your projects. You will find schematics and matching boards.txt files in this project.
Projeto: João Abadia
Nesse projeto, pode-se controlar duas lâmpada (corredor e banheiro, por exemplo) com temporização. Usa-se botões tipo campanhia, sem retenção. Um clique acende a lâmpada e outro desliga. Caso a lâmpada não seja desligada, o temporizador segue contando, dando uma "piscada", avisando o final do tempo, desligando-as no tempo determinado nas linhas "unsigned long", respectivame...