spi

  1. K

    B4R Question ESP8266 Wemos Mini and MCP4251 SPI ?

    Hi, I am trying to use the Library in this post ... https://www.b4x.com/android/forum/threads/mcp4xxx.101935/ I cannot figure out how he defined the Chip Select Pin. In this line of code he has "10" for the csPin ? mcp.Initialize(10, mcp.POT_0, mcp.RES8BIT, mcp.POTENTIOMETER)...
  2. Sandman

    B4J Question Possible to use jPi4J to access two RC522? (on different SPI channels)

    I have an Raspberry PI with two RC522 hooked up, one to each SPI channel. I'm aware of the MFRC522 Library by @sahand_123, but using that library I'm only able to access the reader connected to the first SPI channel. (I've just posted another question about it.) I'm curious if it would be...
  3. Sandman

    B4J Question How to use MFRC522 Library to read second SPI channel?

    I have an Raspberry PI with two RC522 hooked up, one to each SPI channel. Using the MFRC522 Library by @sahand_123 works fine, but it only reads from the first channel. While debugging, I can even see that as a sort-of property. As far as I know it's not something I'm able to specify using...
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