MQTT and Node-RED Everyone with at least a minor interest in technical stuff has heard of IoT, the Internet of Things. In this IoT network it’s all about connectivity, about a network of physical devices, vehicles, and other items embedded with
8 bit computer, progress on the Control Unit Below some pictures of the progress of the construction of the Control Unit of my 8 bit computer. Two pictures, one of the front and one of the back. I’m not satisfied
8 bit computer, solution for the microcode As I mentioned in this post, I was looking for a solution to program a couple of EEPROMs that are going to hold the microcode for my 8 bit computer. Using an Arduino
Robotics on the work floor I came across a nice video about the influence of robots on the work floor of warehouses.
8 bit computer, program counter and reset I’m busy transitioning my 8 bit computer from the breadboards I built it on to experimental PCB’s. They will be on a bus print. Here’s the first video:
EEPROM Programmer For the more complex decoding on my 8 bit computer like for example the Control Unit I will use an EEPROM, not some elaborate complex circuitry. For this I must be able to program an EEPROM. On his Youtube channel
New power supplies Welcome to my two new DC LAB Power Supplies: the Velleman LABS3005. They can each supply 0-30 Volts (adjustable) and 0-5 Amp’s (also adjustable) power, with a ripple voltage of 2mV and a ripple current of 3mA.
Raspberry Pi controlled elevator movie Finally, here it is, the movie explaining my Raspberry Pi controlled elevator. Have a look:
I2C Relay driver card and Arduino Today, I coupled my Relay card to the Arduino UNO through the I2C interface. There’s an ADAFRUIT Arduino library available for the MCP23017 IO expander chip. I used a little test-program in the Youtube movie.
Working with both Arduino’s Okay, to work now. I’ve connected the pre-built VMA100 to my MacBook Pro to be able to program it. The separate ATmega328 chip from the barebone kit has been programmed as well. Power for both chips comes