Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hi All, I have a 4x4 touchpad that I would like to connect to an encoder(?) and have it communicate to the STM32 via SPI, not I2C. I'm looking for an SMD (not BGA) so I have the option to troubleshoot. Can anyone recommend an available IC?
Just use a SM PIC to read the keypad, and send the data to the main processor - using any method you like, personally I'd use simple RS232 'type' serial as it's simple to do and only needs one pin.
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