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episode2 : Sawyer becomes a "useless machine"

In the CreateLab at Fontys-ICT in Eindhoven we play (and learn) about robot programming, behavior trees, ROS. This robot is part of professorship High Tech Embedded Software lead by Teade Punter. A late night experiment by Kris and Edwin. Empowering Students through Hands-on Learning and Repairing Robots At Fontys-ICT, we believe that hands-on experience in repairing equipment is not only an essential skill but also a powerful tool to inspire our students. Recently, an instructor and a student teamed up to disassemble and restore a Sawyer-Robot by RethinkRobotics to working condition. This collaborative repair process ignited enthusiasm and boosted the confidence of our young, aspiring engineers. Once the robot was reassembled and operational, the students quickly began exploring its capabilities. In no time, they were using its vision system to locate blocks on a table, pick them up, and stack them on a stool. This experience sparked a flurry of creative ideas, as students brainsto...

What a great tech blog I found "Ken Shirriff"

I found this blog by accident in a search about generation of VGA signals with an FPGA. It is filled with fine information about technology and history and background stories. http://www.righto.com/ It is written by a person called "Ken Shirriff" and has topics on """Computer history, restoring vintage computers, IC reverse engineering, and whatever""" His twitter :  https://twitter.com/kenshirriff This person has a passion, you can learn from this guy. Check out his blog.

versions of TiMO (tank beer monitoring system) #oetelx

DuoTank version of new TiMO tank monitor unit, approx 53x32x12 mm total size. The new version is the same size as a 9 Volt battery. As you can clearly see this latest one matches the DuoTank logo. (contact Duotank for purchase / implementation details) Screenshot of #ABI dashboard Timo Tank monitor, showing levels declining, speed and date. 2 early TiMO units on table, this version used a separate light source. Previous versions were reliable but fairly large. This one is still in operation. TiMO unit on tank, still operational on location. This is an early model. TiMO dashboard as used by customer, showing locations and online status/levels of all tanks. This data is pushed to brewery ERP system to automatically optimize route planning of tanker vehicles. Currently installed in 23 location in the Netherlands with 100% uptime. Find more content using hashtag : #oetelx

Github release of Controllino code "Het Concertgebouw" water dispensing #oetelx

Good day to you all. I have just released this project I did in a day in 2016 under MIT license. It was a project to help someone quickly get a water dispensing system up and running for "Het Concertgebouw" a famous building in the Netherlands. The project was for a foundation "Join the Pipe" that tries to bring fresh drinking water to everyone in the world (Which is generally a positive thing). The code was written in plain C (using Clion IDE for typing the code) on a linux system for an AVR ATMEGA 328P which is inside the Controllino Mini. Hope you learn something from it. Link to Github project : https://github.com/edwin-oetelaar/join_the_pipe It all worked and was delivered in a few days. Some pictures tell more (maybe) Find more content with hashtag : #oetelx

Low power global connection with WSPR protocol it is so much fun

Conditions are good today. I have my little transmitter with about 0.1 Watt of RF power (could be less). I get my data across the globe : look here 40m band, from Netherlands to Antarctica, USA, Australia and more. This is fun. I am using a QRP labs kit : https://qrp-labs.com/ultimate3.html My antenna is a piece of wire of about 10 meters hanging out of the window not a real antenna! So much fun with so little RF power! Best regards PA2LVD

Maxtor Shared Storage (how I recovered all the data)

Maxtor Shared Storage NAS 300 GB Summary of long adventure: TL;DR. ONE DISK IS NOT AN OPTION FOR A NAS - Audience : advanced users - linux skill required : yes - strong opinion : yes - frustration : yes It looks so nice in the picture : storing data on a NAS, not on the local system. You can access it from anywhere in the network, all is fine. Until.. The NAS breaks down and you forgot the backups.. I had this NAS for a long time (several years), somewhere safe in the house, in a dry and protected and cool place, nobody would be able to find it, a digital safe, connected to my local network. It seems a smart idea, but it really was not. Here is my summary of trouble to get my data back. 1) The NAS did not appear in my network anymore 2) Checked power supply, switches, cables 3) conclusion, NAS is bad 4) reboot, does not come online again 5) open it up, take out harddisk, how hard can it be? Right? I connected the disk to my machine with one of those PATA/...

DPS5005 power supply, remote control using python serial port modbus

Just a short one. I bought one of these things. It can do 50 volt 5 Amp, I have not looked at the quality of the output (noise, overshoot all unknown to me)  but should be alright to control a lamp, a battery or a strip of LED's is my guess. You can easily control the current and voltage output using a serial port. (a usb-serial-rs485 was provided) I seems to talk modbus protocol. To change the baud rate and modbus-slave-address, keep POWER button pressed during power on, this will enter you into the configuration menu. register list here : Register Map for this device. Function Description Number of bytes Decimal places UNIT Read/Write Register address U-SET Voltage setting 2 2 V R/W 0000H I-SET Current setting 2 3 A R/W 0001H UOUT Output voltage display value 2 2 V R 0002H IOUT Output...