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tomtor / rdtape.c
Created March 19, 2016 22:40
Convert SIMH simulator tapes to normal files
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/*
* Convert SIMH simulator tapes to normal files
*
* Copyright 2016 Tom Vijlbrief
*
* tvijlbrief at gmail dot com
@tomtor
tomtor / MendixWidgetWrapper.html
Created May 26, 2016 15:57
A simple Wrapper for Mendix Widgets
<html>
<head>
<script src="../lib/jquery-1-11-3.js"></script>
</head>
<body>
<script>
function declare_f(w, a, p) {
p.domNode= $('body')[0];
p._contextObj= { set: function(k,v) { console.log(v); }};
@tomtor
tomtor / json-func.sql
Created June 17, 2016 07:05
-- See
-- http://stackoverflow.com/questions/18209625/how-do-i-modify-fields-inside-the-new-postgresql-json-datatype
-- All credits to the original author
---------------------------------------------------------------------------------------------------------------
CREATE OR REPLACE FUNCTION "json_object_set_key"(
"json" json,
"key_to_set" TEXT,
"value_to_set" anyelement
)
@tomtor
tomtor / epsg28992.sql
Last active June 17, 2016 13:28
----------------------------------------------------------------------------
-- CRS conversion functions for GeoJSON coordinates and lat/long pairs
-- in PostgreSQL/PostGIS:
--
-- from (Google) Web Mercator (OpenLayers:900913, EPSG:3785 and EPSG:3857 (prefered))
-- and WGS-84 Lat (y) Long (x) (EPSG:4326)
--
-- to EPSG:28992 (RD new)
--
-- Needs the PostGIS extension (surprise ;-)
@tomtor
tomtor / stm32_sleep.ino
Last active December 4, 2023 10:53
stm32 low power sleep code
#include <libmaple/pwr.h>
#include <libmaple/scb.h>
#include <RTClock.h>
// Define the Base address of the RTC registers (battery backed up CMOS Ram), so we can use them for config of touch screen or whatever.
// See http://stm32duino.com/viewtopic.php?f=15&t=132&hilit=rtc&start=40 for a more details about the RTC NVRam
// 10x 16 bit registers are available on the STM32F103CXXX more on the higher density device.
#define BKP_REG_BASE ((uint32_t *)(0x40006C00 + 0x04))
@tomtor
tomtor / STM32-LORA.ino
Last active October 14, 2022 12:46
stm32duino LORA Example
/*******************************************************************************
Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
(c) 2017 Tom Vijlbrief
Permission is hereby granted, free of charge, to anyone
obtaining a copy of this document and accompanying files,
to do whatever they want with them without any restriction,
including, but not limited to, copying, modification and redistribution.
NO WARRANTY OF ANY KIND IS PROVIDED.
@tomtor
tomtor / STM32-OTA.ino
Last active October 14, 2022 12:46
STM32 OTA Example
/*******************************************************************************
Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
(c) 2017 Tom Vijlbrief
Permission is hereby granted, free of charge, to anyone
obtaining a copy of this document and accompanying files,
to do whatever they want with them without any restriction,
including, but not limited to, copying, modification and redistribution.
NO WARRANTY OF ANY KIND IS PROVIDED.
@tomtor
tomtor / CCS811_test.ino
Last active June 2, 2017 13:46
CCS811 low power Arduino sketch
/***************************************************
This is an example for the CCS811 digital TVOC/eCO2 Sensor by CCMOSS/AMS
http://www.ccmoss.com/gas-sensors#CCS811
Updated: March 28, 2017
The sensor uses I2C protocol to communicate, and requires 2 pins - SDA and SCL
Another GPIO is also required to assert the WAKE pin for communication. this
pin is passed by an argument in the begin function.
@tomtor
tomtor / STM32-OTA-CCS811.ino
Last active August 19, 2017 13:47
/*******************************************************************************
Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman
(c) 2017 Tom Vijlbrief
Permission is hereby granted, free of charge, to anyone
obtaining a copy of this document and accompanying files,
to do whatever they want with them without any restriction,
including, but not limited to, copying, modification and redistribution.
NO WARRANTY OF ANY KIND IS PROVIDED.
@tomtor
tomtor / ESP32-ULP-Blink-DHT22.ino
Last active August 19, 2020 08:53
ESP32: ULP LED Hart beat and read DHT22 sensor