Blog

A real-time controller for a home battery

Using a 15 minute battery plan inside a house that changes every few seconds

Battery

MILP

Dynamic Programming

In the previous post I described a 15 minute battery planner. It takes prices, forecasts, battery limits, and the current state of charge, then solves for a cheap battery…

Jun 17, 2026

Airplane Classifier with Fast.ai Library

fast.ai

Deep Learning

Learn to distinguish Airbus A320s from Boeing 737 using the fast.ai software.

Nov 6, 2019

Building a home battery controller in the Netherlands with Home Assistant

Home Assistant

EMHASS

Battery

Netherlands

I show how you can build a home battery controller in the Netherlands with Home Assistant and EMHASS

May 26, 2026

Common Deep Learning Training Pitfalls

fast.ai

Deep Learning

Typical mistakes and pitfalls when facing machine or deep learning problems.

Nov 7, 2019

Custom Data Splitter Function in Python

Python

Splitting a folder of photos in a random subset of training and testing photos is not readily available as a program. This little program provides a solution.

Oct 31, 2019

Excess Mortality in 2020

COVID-19

Analysis of mortality dataset provided by HMD.

May 26, 2020

Logistic Regression in PyTorch from Scratch

fast.ai

Deep Learning

Machine Learning

An explanation of the logistic regression from the ground-up.

Nov 8, 2019

Map Plots in R in a Tidyverse Way

Visualisation

I show how you can plot your own map in R using a few lines of code using a pipe-based workflow

Sep 19, 2018

Replacing Frisquet Connect with a simpler Home Assistant bridge

A local radio bridge for a boiler that was never designed for Home Assistant

Home Assistant

Heating

Reverse engineering

Automation

I built a small Home Assistant bridge for a Frisquet boiler, using the boiler’s own radio protocol instead of the Frisquet Connect control path.

Jun 24, 2026

Train XOR Logic Gate in Neural Network

Deep Learning

Python

Learning to train a XOR logic gate with bare Python and Numpy.

Sep 26, 2018