Therm is a very small PID controller with an OLED display, thermocouple interface, and USB port. It can switch an external solid-state relay for driving large loads, or a transistor for driving small loads. When attached to a computer, it enumerates as a USB serial port for easy control and logging of data. The design […]
Therm: a Tiny PID Controller Continue Reading
Welcome to the never ending saga of Andy and his reflow controllers. About a year ago I published a project writeup showing how I built a PID-based reflow controller. It featured a 640×360 graphical LCD from the Sony U5 Vivaz mobile phone and was all-surface mount. It worked well and continues to serve me well
An Android Reflow controller that anyone can build Continue Reading
Key Features Wide input voltage range: 4.5V to 60V Wide output voltage range: 0.6V to 54V Light-load efficiency enhancement Low ripple diode emulation mode with pulse skipping Programmable soft-start Supports prebiased output with SR soft-start Programmable frequency: 100kHz to 2MHz External sync PGOOD indicator Forced PWM Adaptive shoot-through protection No external current sense resistor Use
Buck controller allows 48V to 1V direct step-down Continue Reading
Buzz..Buzzzz..buzzzzzzzz .. That is how a lone mosquito irritates you in the middle of the night trying to convince you that his lullaby is helpful. Insignificant or not, But truly that is the underlying inspiration for this project. The Mosquito repellents have this obnoxious smell that I would not like to sleep in and these
Ever wanted to build your own Solar Powered Raspberry Pi or Arduino system? SunAir and SunAirPlus are 3rd Generation Solar Charging and Sun Tracking Boards designed by Dr. John C. Shovic at SwitchDoc Labs. You can use this board to power your projects and add a servo or stepper motor to allow it to track
SunAir Solar Power Controller for Raspberry Pi and Arduino Continue Reading
Naturally, the Uno does not natively support keyboard strokes, unlike it’s Leonardo brother. Most of Google will tell you you need to do some firmware workarounds and ATMEGA reprogramming just to get it working and the entire ordeal is a mess. If you’re like me, you’ve found that out just after buying one. Here is
Using an Arduino Uno R3 as a Game Controller Continue Reading
INTRODUCTION : The development of high performance motor drives is very important in industrial as well as other purpose applications. Generally all high performance motor drives use quadrature encoders and PID control because of its simplicity and precise control. The quadrature encoder acts as a feedback from the motor, it is connected to the microcontroller
Arduino PID Motor Controller Continue Reading
After CNCPaul/LathePaul created such an awesome-looking heating chamber, the postie once again knocked on the door at Nerd Towers to deliver yet another eBay purchase – this time, it was a K-type thermistor and breakout module (basically just a MAX6675 on a board with pin headers) We had looked online at temperature controllers but they
Temperature controller for K-type thermocouple and MAX6675 Continue Reading
We have a great thread that contains lots of info on thermal differential controllers here. However, I wanted to start a thread dedicated to my own development of a thermal differential controller that I’ll be using for my attic heat reclamation project. Tonight I setup a simple circuit that tested the operation of the differential
Daox’s diy arduino thermal differential controller Continue Reading
In our last episode, I explained how I redesigned the controller from what I first thought I was going to do. Now, I am going to explain how to make your own thermal differential controller based on mine. As it is, this setup will only control an AC load, but it would be fairly simple
DIY Thermal Differential Controller – Part 4: Building Your Own Continue Reading
