zaterdag 11 maart 2017

A cheap STM32 LORA node

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See: https://www.thethingsnetwork.org/labs/story/a-cheap-stm32-arduino-node
1 opmerking:
zaterdag 24 december 2016

An ESP8266 scrolling display with a 5x8 WS2812 matrix

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See  https://github.com/tomtor/ESP-8266  for the LUA code (loaded on the ESP-8266) and the python driver with the fonts.
1 opmerking:
zondag 7 februari 2016

The SIMH PDP11 and VAX simulator

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This weekend I made a nostalgic trip back in time by recreating the computer environment I used at the university in 1982 and later. The C...
1 opmerking:
donderdag 31 december 2015

FreeBSD video console (vidconsole) on the Raspberry Pi

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In the default configuration with FreeBSD on the Raspberry console messages are written on the serial console. After a "shutdown now...
1 opmerking:
woensdag 23 december 2015

Booting a Freebsd image on a usb stick with the Raspberry Pi

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It took me some time to figure out how to do this, but it's actually very simple. Create an USB stick (or disk) with the Freebsd image...
vrijdag 2 november 2012

A 555 based simple low power boost converter

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I'm experimenting with boost converters to increase the voltage delivered by NiMH or solar cells. I played around with the TL499A ...
vrijdag 14 september 2012

Solar powered Arduino and attiny projects

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Intro I've started creating a solar powered base platform for attiny or Arduino based projects. What is the real life need for such...
7 opmerkingen: