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Difference between revisions of "Hack-o-mat"
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→Brain, display and selection: link to Charlixplexing
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== Brain, display and selection == | == Brain, display and selection == | ||
The original hardware was wired to use diodes on a board of switches, where the price was set for each product with five on/off switches, worth 5, 10, 20, 40, and 80 cents. The user would press a button for the product they wanted. Since we don't want to use the buttons that way, we need to use triacs (electronic relays for AC) for each of the 40 product motors. We are designing a custom circuitboard to replace the binary coin-counter matrix with 40 charlieplexed triacs: | The original hardware was wired to use diodes on a board of switches, where the price was set for each product with five on/off switches, worth 5, 10, 20, 40, and 80 cents. The user would press a button for the product they wanted. Since we don't want to use the buttons that way, we need to use triacs (electronic relays for AC) for each of the 40 product motors. We are designing a custom circuitboard to replace the binary coin-counter matrix with 40 [https://en.wikipedia.org/wiki/Charlieplexing charlieplexed] triacs: | ||
https://github.com/sudoroom/hackomat | https://github.com/sudoroom/hackomat | ||