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TAPR Open Hardware License

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matrix-display

3 months ago 73
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Description

An Arduino/ESP8266 display board for 3x2 788BS red led matrices connected to max7219 drivers. The IREG is higher than usual to reduce brightness, use a smaller resistor (maybe 30/40 K) for daylight applications.

Work in progress, comments are wellcome.

When used with MD_MAX72XX and MD_Parola libs this matrices are not one of the supported hardware types, but I was able to wire 1 and 1+1 on a breadboard and they work quite well with the correct settings.

See attached .TXT for details about connecting the 788BS matrix to the MAX7219 and use it with MD_MAX72xx + MD_Parola libs on arduino IDE.

Documents

Sheet_1

Sheet_2

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Sheet_6

matrix/display

matrix-display-v2

BOM

None

Attachments

Filename Download
connecting_788bs.txt
788BS.pdf
max7219-7221.pdf

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