Deriving 1 Hz from Candle Flame Oscillations
·1922 words·10 mins
Using capacitive sensing to measure the oscillation of a candle flame and converting it to a 1 Hz clock
Hackaday.io imports.
These are projects imported from Hackaday.io. All logs have been merged into a single page per project. The format of HaD is similar to a lab notebook. Due to this, the content is incremental and not always well polished.
2025
Compute In Memory in Ancient DRAM
·3000 words·15 mins
Massively parallel operations in a 64kx1 DRAM from the 1980ies
2023
2022
Powerline Controlled LED Strings
·1260 words·6 mins
Analysis of a RGB LED string and recreating its functionality
2021
555ENabled Microprocessor
·3117 words·15 mins
A Microprocesser designed in a digital logic family based on the NE555
VHDL/Verilog to Discrete Logic Flow
·7405 words·35 mins
Work in progress: Flow to synthesize VHDL/Verilog code into a PCB
2020
LED Coupled Logic (LCL)
·888 words·5 mins
Reaching sub 1 ns propogation delay with LEDs and bipolar transistors.
Discrete NMOS Logic in 2020
·1923 words·10 mins
Optimizing NMOS logic gates made of discrete transistors
Sensors Based on the Padauk RFC Peripheral
·1382 words·7 mins
Exploring the undocumented Resistance to Frequency Converter (RFC) peripheral of the Padauk PFS173 Microcontroller
4 Bit TTL CPU
·625 words·3 mins
A TTL CPU I built a long time ago when I bought a huge stock of NOS TTL chips on ebay
Evaluating Transistors for Bipolar Logic (RTL)
·5067 words·24 mins
Experiments on optimizing discrete logic gates based on bipolar transistors
LCPU - A CPU in LED-Transistor-Logic (LTL)
·6724 words·32 mins
This projects tracks my efforts to develop discrete LED-Transistor logic building blocks and designing a CPU from them.