Lucky Resistor has written up documentation on his fan controller project: The fan controller described on this project page, controls one or more PWM controlled 12V PC fans. It uses the input from two precise DHT22 based temperature sensors. The MCU is an Arduino Uno, which is powered using a 12V power source. On top […]
A tiny PID controller project from Ethan Zonca: 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 […]
Davide Gironi made a PID controlled line following robot: InLinea01 is a simple PID controlled line following robot. This is not speed oriented line follower, this is just a prototype I built to experiment with this type or machines, though it can be the first step to build a faster one. The goal of a line […]
jeanmarc78 writes, ” An interesting tutorial about PID which includes the description of a simple method to tune the P, I and D parameters” by Charles D. H. Williams It is important to have an intuitive feel for the ways that feedback can affect a system if you want to design analogue electronic circuits that work well. […]
Stanley Lio is working on a RC Servo and PID autotune project: The robotic arm built for the magnetic field measurement project leaves several things to be desired. After a new servo is installed, finding the mapping between PWM duration and DH angles is done manually with pen and protractor. I want to automated this. The arm trembles […]
jeanmarc78 posted his PID based thermostat built using the Flash Destroyer module in the forum: After trying a few commercial thermostats for my central heating (hot water), i was not really satisfied. They don’t provide a smooth regulation. Then i decided to build my own one reusing my flash destroyer hardware board.
Arhi continues to develop the universal soldering iron driver. This is a rendering of the third generation PCB. The soldering iron driver can use soldering pencils with K-type or PTC type temperature sensors like Solomon, Hakko, and Weller, to name a few… Generation 3 has a reworked analog section. It that now fully supports PTC […]
PID is implemented when a precise way is needed to drive an external device that provides feedback. Heaters with temperature sensors, and servo motors are examples where PID is used. This app note by Microchip gives instructions how to implement PID control in PIC18 projects. Basic terms are explained inside the document as well as […]
Arhi compares his soldering iron driver with commercially available products. After designing and building a open source soldering station for Solomon or Hakko soldering pencils, he posted a full analysis of his project. While his driver has some overshoot, once it stabilises the temperature has less swing then the original drivers. With some PID tuning even better […]
To assist in understanding and using the new Arduino PID Library, Brett Beuregard has put together a tutorial entitled Improving the Beginner’s PID – Introduction. Via DIY Drones.