(root) / Designs

HAM Constructions

You can find here constructions for radioamateurs. Receivers, transmitters, measuring and so on.

Power Supply Constructions

Robots

You can find here small robots. Some are made of MLAB modules, others are independent constructions.

Solar Cell Tester

Outdated construction. The tester measures Voltage/Current characteristics of battery of solar cells. The results can be sent to PC via RS232. It automatically finds the power optimum.

Solar Cell Tester

The tester measures Voltage/Current characteristics of battery of solar cells. The results can be sent to PC via RS232. It automatically finds the power optimum.

Dog finder - Track Logger

The track is logged in NMEA format on SD/MMC card.

Some radioactivity intensimeter

A counter is based on Geiger-Müller tube. Powered by internal Li-ion cell and voltage converter. It can log data in time domain and then it can send log to a computer.

Ionisation Radiation Logger

Logger is an application developed during the "Physics' Day" organised for secondary school students at the Faculty of Nuclear Sciences and Physical Engineering in Prague. It can log intensity of ionising radiation with GPS coordinates.

Ionisation Radiation Logger

It can log intensity of ionising radiation with GPS coordinates on an SD card.

L C T Meter

LCT Meter is able to measure inductance L, capacitance C and temperature T. It can measure reliably from small values of L and C. It is based on PIC processor.

Melody Bell

Programmable melody bell is ale to hold up to 500 notes in up to 15 songs. The songs can be programmed via RS232. The construction is based on PIC processor.

Mrakomer (Claudsmeter)

Cloudsmeter is a robotics device for measurement the clouds coverage. This device is especially constructed for protection of robotics telescopes against rain and snow.

Mrakomer3 (Claudsmeter)

New design of the Cloudsmeter. This is a device for measurement the clouds coverage. This device is especially constructed for protection of robotics telescopes against rain and snow.

Mrakoměr4 (Claudsmeter)

This is a device for measurement the clouds coverage. This device is especially constructed for protection of robotics telescopes against rain and snow. This is a second generation without moving parts.

Timer for robotics

The timer measures time from start to finish. It is intended for optimisation of small robots (robotic cars). It can send time data to the PC via RS232 interface.

Quad stopwatch timer

The timer measures time from start to finish in four sectors. It can send time data to the PC via emulated RS232 interface at USB.

Small blinker for children with two LEDs

The blinker is constructed so that it resembles smiling human face. The construction is simple and even small child is able to make it. Tested. The blinker is low power device with long battery life.

Home automation

Demonstrative design shows how use MLAB modules to intelligent home automation.

Simple test of accelerometer module (GSENSE01A + PIC18F4550)

This construction takes data from accelerometer and compute sum of quadratic error to determine accuracy then send result to the PC via USB. Its simple - this construction was created during trip on train :)

Electric Fence

This device is a high voltage generator for an electric fence. This device was designed especially for goats and sheep.

Prototyping reflow oven

This is a modification of an electric oven to oven suitable to solder electronic components.

Homemade GPS

If you don't like commercial GPS receivers, you can make your own to fit your needs and tastes. This project continues as a GPSnavigator project.