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anemometerlasercut

OpenSCAD models for the lasercut structure of my ultrasonic anemometer

beaconkeyerhardware

A PIC-based beacon keyer design

beaconkeyersoftware

Firmware for my beacon keyer. Written in C for PIC16F18325 to be compiled with MPLAB/XC8

dimmerhardware

Multiple versions of programmable LED dimmers, some with multiple outputs for RGB LEDs

hexfileparser

Two command line tools (one written in C#, one in C) that parse, error-check and decode .hex files, i.e. the files one uses to program microcontrollers.

hid_utility

This open source (GNU GPLv3) project is aimed at simplifying the development of C# applications that communicate with USB HID (Human Interface Device) devices.

holdingcurrentlimiter

A little circuit designed to limit the holding current of a relay. While it limits the holding current, it does not limit the current when the relay is switched. Current is adjustable via a pot.

inductancemeter_hardware

Various inductance meters: Arduino UNO shield and PIC-based standalone version.

inductancemeter_software

Software for my standalone inductance meter. It's written in C for the Mikroelektronika MikroC for PIC compiler.

invertercontroller

A device to control a frequency inverter and to measure and display RPM. Works straight off mains voltage and can be remote-controlled by a CNC controller. I've built this for my lathe but the circuit is quite universal.

invertercontrollersoftware

Firmware for my Inverter Controller. Written in C for a PIC16F18855

keysightinstrumentcommunication

Connecting to HP/Agilent/Keysight devices via USB or GPIB

lubricatoncontroller_hardware

Hardware of my Central Lubrication Controller

motorcontroller_hardware

motorcontroller_software

Software for my PWM motor controller

pic18_usb_bootloader

A MSD (Mass Storage Device) USB bootloader for a PIC18F47J53 with an external SPI flash chip. I'm writing this primarily for my MPPT Solar Charger but the code is rather universal.

programmabledimmer_software

Firmware for the universal programmable 4-channel LED dimmer based on a PIC16F18325

relaycontroller

Properly hardware debounces up to 6 inputs and provides corresponding open-collector outputs with free-wheeling diodes included able to drive 500mA each

robot_hardware

Eagle files for my robot with two stepper motors and some other stuff

robot_software

A little robot with two stepper motors and a I2C interface

rotarytableapp

An application written in C# that communicates with my stepper motor / rotary table controller via USB.

rpm_meter_hardware

A nicely made RPM meter that takes a quadrature encoder input and displays the result on a 4-digit display. The input signals are properly filtered and schmitt-triggered first and a reconstructed signal is made available as an output. Works with any supply voltage in the range of 6 to 30V DC and is reverse polarity protected.

rpm_meter_software

Software / firmware for my RPM meter

sensorinterface

Interface between the CNC controller of my mill, a tool lenght probe and a 3D probe

sequencer_software

RX/TX Sequencer with 3 Reed Relay outputs

sequencerhardware

RX/TX Sequencer with 3 Reed Relay outputs

sevensegmentdisplay

A project for beginners in the field of microcontrollers. Two 74HC595 shift registers control two 7-segment (plus decimal point) displays via an SPI interface.

smeter_app

A windows desktop application for the S-Meter that displays current measurements and allows for calibration.

smeter_hardware

There are 2 eagle projects. The display unit and the db-linear amplifier. The display unit serves multiple purposes. It provides clean, linearly regulated and filtered plus/minus 5V supply to the amplifier, it measures its output and displays it on the 2x16 character LCD. It can also communicate with a computer via USB (see SMeterApp).

smeter_software

Embedded software for the display unit of my S-Meter. Measures the output of the db-linear amplifier (see SMeter_Hardware), displays it on a 2x16 character LCD and communicates over USB with a host (see SMeterApp).