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Recent posts:
 New method for measuring lots of resistors using very few wires – part 3 – a simple measurement device
 Davids bile giveaway – Subscription? No, thanks.
 New method for measuring lots of resistors using very few wires – part 2 – Theory
 New method for measuring lots of resistors using very few wires – part 1 – Theory + intro
 GPIO abuse – sourcing and measuring at the same time
 Overdetermined system of linear equations
 Repair/teardown – FlexiScale weight and calculator scale
 L110 METRA Blansko resistance decade box
 Circuit Cellar publication – a new method for measuring resistors!
 HP 9000 Superdome utilities board ( A647560201 ; UGUY5500 ) high res scan + guesswork
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Tag Archives: avr
New method for measuring lots of resistors using very few wires – part 3 – a simple measurement device
The hardware implementation The previous bits of the article ( part 1 and part 2 ) described the core concepts of this measurement and the theory behind it. The actual measurement device – the measurement system is pretty simple when … Continue reading
Posted in Resistance measurement method
Tagged .net, avr, pcb, publication, resistance, resistors, rnet
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New method for measuring lots of resistors using very few wires – part 2 – Theory
The Matrix Continuing from part 1 the matrix form used needs to be described. If you need a quick “tutorial” in systems of linear equations, take a look at this text I wrote. First, the vector of the unknowns – … Continue reading
Posted in Projects, Resistance measurement method
Tagged .net, article, avr, math, publication, resistance, rnet
4 Comments
New method for measuring lots of resistors using very few wires – part 1 – Theory + intro
Introduction This article describes a new method of measuring a lot of resistors using a low amount of wires and a lot of math. The resistors can be any kind of resistors, thermistors or other resistive sensors. It can be … Continue reading
Posted in Projects, Resistance measurement method
Tagged .net, article, avr, math, publication, resistance, rnet
2 Comments
Circuit Cellar publication – a new method for measuring resistors!
Dear readers, After lots of work, waiting and experimenting, I have completed a text that I have sent to Circuit Cellar and they have agreed to publish it. The article deals with a new measurement technique designed to measure lots … Continue reading
The AVR controlled clock
The AVR controlled clock: A friend of mine needed a clock into his amplifier as an extra function. So I made him one. It consists only of one AVR processor and one BQM512RD (or compatible, with common anodes) LED display. … Continue reading
The Sanity nullifier
The purpose of this device is a bit evil. Oh well, sue me. I made it as a yoke for the first of april and many more days to come. A brief description: The device beeps a short beep of … Continue reading
The DPLC programmable controller
The DPLC is a PLC I made for my final exams at high school. It can be programmed in a simple language, has 16 inputs and 16 outputs. It can be programed with 65536 bytes, which is equal to 8192 … Continue reading
The concealed codelock
The Concealed codelock (CC for short) is a design of mine, which can be used in a similar fashion as a safe lock, such as that on the picture above. The rotation sensor used here is just a simple 10k … Continue reading
The Game of Life on a 20×4 character LCD
The reason for making this project is that I was always fascinated by Conways Game of Life. It’s a great demonstration of the fact that simple things with a very simple set of rules can do wonderful things: spawn more … Continue reading
YALBlinkie
Yet Another LED Blinkie project I wanted to play with a simple RGB LED, to see how colors would mix, change and stuff. So I build my own LED and “controller”. It fades in and out a set of 9 … Continue reading