![]() Since this hardware uses TTL logic available back from the same time period I was wondering exactly how much extra graphical grunt could have been engineered and interfaced with these old 8-bit computers.Truth be told, the Imagine hardware was pretty much just extra RAM but this was a fun project to see how far the arcade hardware was pushing the limits of board size and signal complexity.I was looking at Bomb Jack boards on ebay and pondering how they had enough fill-rate to draw 24 16x16 sprites and have the option for some to use 32x32 mode as well. In the back of my mind was the often fabled "Mega games" by Imagine Software which were planned to use extra hardware on the Spectrum and Commodore 64 to augment the machine's capabilities. Designed to use 74 series TTL through hole ICs available back in the 1980s, something you can solder at home from parts or order ready assembled.This project started when old retro arcade hardware was being discussed. audio and video hardware for retro machines like the Commodore 64. If you need more than a single module, I'm sure, PCBway will make you a great offer :-) So it was a pleasure, to order 0.0.5 fully SMD assembled from the same people.If you are interested in buying the fully assembled version, you can visit my blog. For the latter, you can also find a link on my blog to a GitLab project, that implements the Buderus protocol and uses MQTT on the network, ready to be integrated in almost every modern home automation system.Thanks to PCBwayThe first version (0.0.1) of the board was also sponsored by the cool people at PCBway. The ESP32 can be programmed in various ways and one of it is ESPhome (which I favour). The original has the disadvantage, that you still need something like a Raspberry Pi, a power supply, a USB-Serial converter with (old fashioned) level shifters and all that stuff from the 1970's.This module just integrates an ESP32 and directly connects to the 5V-TTL serial interface of the Logamatic. If you have the module already assembled and want to start over, this is the right place to look at.The module is just a simple way, to replace the original KM271-RS232-Extension board for the Buderus Logamatic heating control unit. If you want to optimize or upgrade your heating system, this is the most effective way, to get the data for the minimum forward temperature possible and to make a decision on the right new heating system (like a heat pump).More Info -)If you are interested, how I got to the current design and why I did this project, have a look at my blog. This is quite essential to get the relevant data from the heating system and can also be used to control it. TL DRThe module is a simple way, to connect the widely used (at least in germany) Buderus Logamatic 2107M control unit for oil based heating systems to your home network and your home automation. ![]()
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