Hi, I am building a mirror that displays scrolling inspirational quotes as a conversation piece/inspiration for my engineering lab classroom.
You were out of the the alphanumeric hexadecimal displays with the I2C backpack. I noted that the feather alphanumeric hex display used the same chip so I got those instead. The non-feather version have 5 pins, SDA, SCL, Vcc, gnd and Vi2c. The feather version pinout only specifies a power, gnd and SDA, SCL pins. I am assuming that the feather version is getting the Vi2c power from its connection to the feather. If I am not using it with a feather, but with a uno or a nodeMCU. which pin on the feather backpack corresponds to Vi2c?
Thanks,
Tania
alphanumeric hex display/feather pinout question
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- tmslaton
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- dastels
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Re: alphanumeric hex display/feather pinout question
The Vi2c is only used to power the pullup resistors. Connect it to 5v on an UNO as the UNO uses 5v logic. If you're using it with a 3v board, connect it to 3v.
Dave
Dave
Please be positive and constructive with your questions and comments.