ESP-EYE Espressif AI face detection camera supporting their AI framework is in stock


There is lot of noise around Espressif new development board with 2Mpix camera which allow to develop with their ESP-WHO AI framework. ESP-EYE was announced in january and we were waiting to be released.

Now the waiting is over! We got limited quantity from their first production run and ESP-EYE is in stock.

If you want to be among the first to play with Espressif framework for Machine Learning and AI hurry up as the quantity is limited and will not last long.

Open Theremin – Urs Gaudenz is our hero


Few weeks ago we spotted on Hackaday the post about Open Theremin, on first look nothing challenging, just classic two HF oscillators with mixer which detects your body/hands proximity to the antennas and change the frequency.
Connected to Arduino and generating variable pitch and frequency tones.

The real gem was in one of the comments. The video how this guy is manufacturing the kits with do it yourself pick and place machine which he built from $50 ink jet printer mechanics.

Knowing how demanding to operate are the real professionl pick and place machines I know what amount of work is to build such thing from nothing, to program and debug it and to actually make it work something useful. This is months of efforts! The DIY P&P which actually works deserves our admirations!

DIY Air Pockets Machine


When dealing with shipping parcels there is one thing which is always not enough – filling material, it should be light to not change the parcel weight, but must in other hand fill all gaps and hold the materials inside the parcel tight to not break during the shipments.

After searching for professional machine for making Air pocket I found that all of them are

  1. expensive
  2. working with special materials which are also expensive

so I start thinking how to make my own air pocket filling machine.

First thing was to find PE sleeve, it was not hard as around Plovdiv there are about 10 different small factories which produce such PE sleeve, they can even print your logo or something else on it as it’s widely used to pack milk, sugar, and so on food products.

The PE sleeve is sold on KG and very cheap, this roll you see above is 6KG but probably long thousand meter and cost me eur 30.

Then I needed PE sealing machine and sourced one from ebay for $40 with free shipping.

The sleeve should be also filled with air so I got one of these small fans used in bathrooms.

So I was ready to test my “machine”.


First cut one stripe of the sleeve around 1 meter and sealed one end with the sealer.

Then put the sleeve on the fan fixing it with rubber ring:


As expected the sleeve got filled with air then all I had to do is to seal some pockets with the selaer. You can see the result:


Not bad result for first try 🙂

Now I have unlimited low cost air pocket filler for the parcels we ship.

Free online Machine Learning course CS 229 from Stanford University


This course provides a broad introduction to machine learning and statistical pattern recognition.

Topics include:

  • supervised learning (generative/discriminative learning,
  • parametric/non-parametric learning, neural networks,
  • support vector machines);
  • unsupervised learning (clustering, dimensionality reduction, kernel methods);
  • learning theory (bias/variance tradeoffs; VC theory; large margins);
  • reinforcement learning and adaptive control.

The course will also discuss recent applications of machine learning, such as to robotic control, data mining, autonomous navigation, bioinformatics, speech recognition, and text and web data processing.

You can access course materials at