Author Archives: admin

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Distributed Computing

Now for something slightly different. In attempt to support this site and a few others that I have online, I’ve looked into ways of earning a few pennies. You may have noticed the (hopefully) few Google ads on the pages. … Continue reading

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New Boards On The Way

Finally, after being involved in non-electronic projects for a while, I’ve been able to finalise the new ZAViouR board v1.02 and the 7400 based I/O expansion board v1.00. Both have been sent to my favourite fabrication house, Hackvana and I … Continue reading

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ZAViouR Demo and plans

Development continues on ZAViouR Boards v1.01 and v1.02. With a simple bit of Arduino code, you can insert Z80 Hex coded machine code into the ‘Sketch’ via bin2h.exe then compile and run it. Demonstrated here with a simple routine to … Continue reading

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ZAViouR Lives!

After a painful few days programming, trying to identify why I couldn’t do a simple thing like load SRAM with data, I found that I’d mis-typed one of the port names in the init routine. After editing the single character … Continue reading

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AVR/Z80 Hybrid

The AVR/Z80 Hybrid boards arrived yesterday. Excellent service as always from Hackvana, my preferred fabricator. I set about constructing the first board. I’ve not included the output port on the first one since I haven’t got the two relevant 74′ … Continue reading

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Universal Regulator Board

I have just published my design for a Universal Regulator Board in the Non-AVR Projects section. The idea behind it was that I was using much the same power supply for the majority of my projects, a 7805 and associated … Continue reading

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ESP’ecially good!

The ESP8266 ESP-01/03 Flash/Proto v1.4 boards arrived today. I set about building one up to test it and it all checks out. I used my usual SMD soldering technique of placing blobs of solder paste on each of the connections … Continue reading

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ESP8266 ESP01/03 Flash-Prototype Board

The ESP01/03 Flash-Prototype Boards arrived from the fabricator. Good quality boards in a reasonable time. Although not Hackvana (Sorry Mitch, I’ll be back for the next batch!). Here you see two of the boards, one populated with an ESP-01 module, … Continue reading

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Distractions (ESP8266 Flash Board)

Lately, I’ve been distracted from general AVR stuff by the now ubiquitous ESP8266. I purchased a few ESP-01 boards and an ESP-03 board a while before moving location and I’ve just got around to learning a little about them. The … Continue reading

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New minDUINO Variant.

Way back last year, before all the hassle that moving location entails, I started to design a minDUINO variant to work with the UKHASNet mesh network. Finally, having gotten settled down, to a degree, in my new location on the … Continue reading

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