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asm7100 wrote: Diagram for unity in the garage
It has 1W, SPI and a MCP23017 where port A is Input and hase a irq to the esp-12 modul. Port B is used as output.
It is only necessary to keep the "flash" down, during startup to flash esp-12
Remember only 3v3 but MCP23017 can take 5V input.
MCP23017 is at address 0x00
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