Peter, Jon and I are designing a programmable electronic load, here on element14: Programmable Electronic Load We'll never make it in time for the DIY Test Equipment initiative (we may have a first prototype In the Year 2525). But it can help you if you want to build a device that can be automated with LABView or similar*. What's in the current version: - working firmware with a SCPI integration. Complies to SCPI standard out of box. - tested PCB with several ADC and DAC chan ...
I was planning to make a super simple logic probe but Jon beat me to it with his comparator based logic probe. So I've prototyped a microcontroller based one. Microcontroller based logic probe with display My project has just two modules, an Arduino clone and an Adafruit I2C LED backpack. The probe is connected to an analogue pin although the current software uses it as a digital pin only. The pin is sampled once every half second and 8 samples are shown across the screen on the first 2 l ...
Planning the Design
Design in practice
The Testing Platform
1. Main Sketch
Main loop() structure
Motors running status block
Serial parsing block
Analog reading block
Other functions in the main sketch
2. MotorControl Class
MotorControl - Hardware control methods
MotorControl - High level methods
3. Commands Des ...
I work with small thermocouples and Hot-Wire/Hot-Film devices in my lab. To test and calibrate these devices requires some crazy equipment sometimes. Try to imagine blowing air on a thermocouple that's in a chain of thermocouples 1mm apart without disturbing the ones on either side. Hot-films are very sensitive to the air flow direction, and it's difficult to move a big fan around keeping the air flow at accurate angles. So, after trying straws taped to little fans and other sometimes s ...
Just understood what the prize is haha. In that case, this could benefit me with the documentation of the different max speeds of all electric motors in my inventory. I could then select the most appropriate motor for a certain application. ...
I have recently begun the construction of an 8-bit computer based around an Intel 8088 CPU. I believe that I have all necessary components for the build, but I am still not too sure. A handful of ICs (including what appears to be the clock IC) have lost their labels after years in storage. It would be very handy to have a component tester to know which pins are which; therefore, knowing what the IC is. I also have many unlabed MOSFETs with no branding or information printed in them as well. So a ...
DIY Test Equipment Monthly project competitions, chances to earn prizes, you decide project themes, your ideas, your projects, turn ideas into projects. Back to The Project14 homepage Project14 Home Monthly Themes Monthly Theme Poll Introduction This project is to build a handheld test tool, to measure how fast things are turning. It could have uses in vehicle diagnostics, or for checking how fast a drill is spinning. It could also be used in math/physics experiments to see how fast w ...