Perry

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  1. Good evening. I added the following to /boot/armbianEnv.txt param_w1_pin=GPIO1_D4 This is the armbianEnv.txt contents verbosity=1 bootlogo=false overlay_prefix=rockchip rootdev=UUID=cbeeff94-c38d-4a79-b10a-3854a2470be4 rootfstype=ext4 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u param_w1_pin=GPIO1_D4 overlays=i2c7 spi-spidev w1-gpio I restarted the Rock64. The w1 directory is not created in the /sys/bus/ directory. I have to run modprobe w1-gpio and/or modprobe w1-therm to see the w1 directory. The /sys/bus/w1/devices/ directory is empty. There is not an address or the w1_bus_master listed. Thank you for your help Perry
  2. How is the 1-wire bus enabled on a Rock64 with Armbian 20.08.17 Bionic? I have enabled the w1-gpio through armbian-config. The /sys/bus/w1/devices/ folder is empty after sudo modprobe w1-gpio and sudo modprobe w1-therm. Below is what is in the armbianEnv.txt file in the /boot directory. verbosity=1 bootlogo=false overlay_prefix=rockchip rootdev=UUID=cbeeff94-c38d-4a79-b10a-3854a2470be4 rootfstype=ext4 usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u overlays=i2c7 spi-spidev w1-gpio In the /boot/dtb/rockchip/overlay/ directory there is a file rockchip-w1-gpio.dtbo. I have connected the VCC pin of the DS18B20 to 3v3 physical pin 1, ground of the DS18B20 to physical pin 9, data of the DS18B20 to physical 7. The DS18B20 address and w1_bus_master1 do not appear in the /sys/bus/w1/devices/ folder. What more is required to see the DS18B20 and take readings? I have already connected an 18x2 LCD to i2c and am writing information to the LCD using python. Thank you for the help. Perry