I confirmed, today, the RX pin on the debug UART is used for PWM by connecting up a servo and using the gpio utility installed on the NanoPi's OS. I used this tutorial for the Raspberry Pi - figuring that WiringNP on the NanoPi was a variation of WiringPi on the Raspberry Pi. The only variation I th...

By this image:


[img]
http://wiki.friendlyarm.com/wiki/images ... uo_PCB.png
[/img]

I would guess it's the RX pin, but I just don't know, either.

I hope we get an answer.

Does that means it's accessible as DEBUG_RX on the Debug UART port?

I'm using the mini shield. Is it accessible via the 2 x 9 header?

Frank

Which pin(s) are used for PWM? Number# Name Number# Name 1 SYS_3.3V 2 VDD_5V 3 I2C0_SDA / GPIOA12 4 VDD_5V 5 I2C0_SCL / GPIOA11 6 GND 7 GPIOG11 8 UART1_TX / GPIOG6 9 GND 10 UART1_RX / GPIOG7 11 SPI1_MOSI/GPIOA15 12 GPIOL11 13 SPI1_MISO/GPIOA16 14 GND 15 SPI1_CLK/GPIOA14 16 SPI1_CS/GPIOA13 17 SYS_3.3...

This is just to help people out. Initially, you have to be root to be able to use the GPIO pins via the command line. So, to get beyond having to be root, here are some tips. sudo groupadd gpio sudo usermod -aG gpio user-name and, then (add these lines to the 99-gpio.rules file): sudo nano /etc/udev...

Thanks for the information!

I used the cpu_freq command and got the following: sudo cpu_freq INFO: HARDWARE=sun8i CPU0 online=1 temp=40822 governor=ondemand cur_freq=120000 CPU1 online=1 temp=41186 governor=ondemand cur_freq=240000 CPU2 online=1 temp=41186 governor=ondemand cur_freq=240000 CPU3 online=1 temp=41186 governor=ond...

When I bring up the web page NanoPi-Monitor - it shows: CPU total: undefined% (Sys: undefined%, User: undefined%, I/O wait: undefined%, Nice: undefined%) CPU frequency: 120MHz Governor: ondemand Active CPU cores: 4 Vcore: undefined ====================================================================...

Hi, I just set up my new NanoPi Duo with the nanopi-duo_ubuntu-core-xenial_4.11.2_20170908.img. I connected to my router and I am able to ssh into just fine. I did the apt-get update, df -h, and set my options with npi-config. I would like to be able to VNC into it and use a desktop envrinment. I in...