I'm having trouble with connecting one servo to the GPIO pins and sending PWM signals. The servo seem to jiggle / twitch. I've tried to put a capacitor as well. I tried to connect it to Arduino and it seemed smoother there.

The problem I think is because the PWM signals are not granular enough. The pigpio library for Raspberry PI is something that does this better, http://abyz.me.uk/rpi/pigpio/download.html where microseconds can be sent, instead of having a very

hard limit on dutycycle value of 0-100.

Can anyone help and share some ideas? Have you connected a servo that runs smoothly? If so, can you share the code? 

I'm having issues trying to use rtc in my tinker board, I want it to function so that i get the correct time & date even when I power on my device without any internet connection, 

now the issues I'm facing are 

when i connect the rtc module to the tinker board by connecting pin3 and pin5 to the corresponding pins and a cmos battery already connected to rtc module, im getting

linaro@linaro-alip:/$ sudo i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f

00: -- -- -- -- -- -- -- -- -- -- -- -- --

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

50: 50 51 52 53 -- -- -- -- -- -- -- -- -- -- -- --

60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

70: -- -- -- -- -- -- -- --

what does this mean and the thing i dont understand is even when i disconnect the rtc module and make sure there are no i2c connections are connected on board

im getting 

linaro@linaro-alip:/$ sudo hwclock -r -f /dev/rtc0

2024-05-28 13:26:15.099234+05:30

my hardware config is 

##### Hardware Interface Config #####

## Note: fiq_debugger and uart3 use the same pin. Set fiq_debugger

first while $

## Note: uart4 and spi0 are the same pins. Set the latter one while

both on. ##

## Note: uart2 is the same pins to pwm2 and pwm3. Set the latter one

while both$

intf:fiq_debugger=on

intf:i2c1=on

intf:i2c4=on

#intf:spi0=off

#intf:spi2=off

#intf:pwm2=off

#intf:pwm3=off

intf:pcm_i2s=on

intf:uart1=on

intf:uart2=on

intf:uart3=on

intf:uart4=on

i dont understand why, i just want to get correct date and time between power on and offs even when there is no internet connection..

can some one guide me through the steps required to achieve this functionality

I want your help regarding tinker board r2.0 about GPIO pins, let me explain what I'm trying to do 

I want to send and receive data through two tinker boards from the port ttyS1 with hardware flow control enabled 

both boards have same configuration of serial port ttyS1 and hardware flow is enabled but when I send data through a board using python

import serial

ser = serial.Serial('/dev/ttyS1', baudrate=9600, rtscts=True)

# Print initial RTS and CTS status
print("RTS:", ser.rts)
print("CTS:", ser.cts)

# Transmit data
ser.write(b'Hello')

# Print RTS and CTS status after transmission
print("RTS:", ser.rts)
print("CTS:", ser.cts)

I'm getting the output showing CTS = False before and after data transmission, and in the other board I can't see any data incoming in minicom this is same for the other boards also I have connected GP5B1(TX) , GP5B0(RX) , VCC, GND, GP5B2(CTS) and GP5B3(RTS) in both boards through RS232 connection in both boards

but when I connect the ttyS1 to USB of my windows laptop and send data through dock light with hardware flow control enabled I'm able to send and receive data

I can't read the data even if the hardware flow control is disabled between two tinker boards..

the issue occurs when I connect two tinker boards with rs232

please help me with this problem.. 

You do "apt-get update && apt-get upgrade" on the current version and then do "apt-get dist-upgrade"

After this you update your repo to the next version and repeat the above steps.

I ran into an issue where I had 2 packages that had no installation candidate. You hold those packages and then do "apt-get update && apt-get upgrade".

Always do "apt-get update && apt-get upgrade" before you do "apt-get dist-upgrade"

If you skip a version and try to upgrade to the latest version your upgrade will not work and TinkerOS will have issues.

We have been using a good number of tinkerboards for a while, starting with the original R1.x but recently also adding R2.x ones

Now we wonder if we can somehow programmatically figure out (during runtime) what revision we are running our software on.

Is there any way to get at this information? Maybe serial number conventions or some other secret eeprom registers?

Thanks for pointers!

I have a couple of questions:

1. I was finding the TinkerOS lite (like RaspianOS lite).. i.e the OS without the X11 graphical GUI. But I realized, that maybe TinkeOS lite does not  exist. Is it correct?

          Therefore: How can I delete all packages related to GUI, in order to have a clean TinkerOS to be used as pure "server"?

       2.  in my virtual box debian installed into windows 10 laptop, i cloned the image of the TinkerOS flashed into an SD using this command:

sudo dd bs=4M if=/dev/sdc of=220918_TB_32GB_port_22.img status=progress && sync

but then when I recover this image using Balena in a new SD card for example... the new SD card does not boot.

what is wrong?

thanks for your support

Vincenzo

Thanks,

I asked an electronic components distributor when the "Tinker board S" (note R2.0) will be in stock.  I received the answer that "since this product is end of life, it will not be in stock".

It is still in the tinker board products list of Asus at https://tinker-board.asus.com/series.html. Is it end of life?

Thanks and best regards,

There was a Tinker Board Configuration tool in Tinker Board S. Is there an equivalent tool in the new Tinker Board S R2.0?
Thanks,

Anyone had the same thing? This makes me very unsure if this card is legit or not, tampered with. Bought it via reseller on Amazon. 

  I tried to get WiFi running using BalenaOS (image balenaOS 2.38.3+rev1) following the Balena setup manual

But WiFi is not working.

Any help on this ?

What I tried A), B) or C) see as follows...

But unfortunately, none of the trials A, B or C helped ?

Do you have any idea on how to get the WiFi running using the balenaOS.2.38+rev1 image ????

Trial A) using the file system-connections/balena-wifi-01 in the flash-boot of the BalenaOS image

[connection]
id=balena-wifi-01
type=wifi

[wifi]
hidden=false
mode=infrastructure
ssid=MY_SSID

[ipv4]
method=auto

[ipv6]
addr-gen-mode=stable-privacy
method=auto

[wifi-security]
auth-alg=open
key-mgmt=wpa-psk
psk=MY_PW

Trial B) As described in flash-boot's system-connections/README.ignores file, I took away the .ignores of the resin-sample File. But this seems an old way of doing things. Not sure about this.

[connection]
id=resin-sample
type=wifi

[wifi]
hidden=true
mode=infrastructure
ssid=MY_SSID

[wifi-security]
auth-alg=open
key-mgmt=wpa-psk
psk=MY_PW

[ipv4]
method=auto

[ipv6]
addr-gen-mode=stable-privacy
method=auto

Trial C) entering WiFi/PW credentials in flash-boot's device-type.json

{
    "slug": "asus-tinker-board-s",
    "version": 1,
    "aliases": [
        "asus-tinker-board-s"
    ],
    "name": "Asus Tinker Board S (EXPERIMENTAL)",
    "arch": "armv7hf",
    "state": "EXPERIMENTAL",
    "stateInstructions": {
        "postProvisioning": [
            "The device is performing a shutdown. Please wait until all LEDs are off.",
            "Remove the balenaOS installation media.",
            "Before powering up the Asus Tinker Board S, make sure that the jumper between the 5V power supply and the HDMI connector is in the parking (no function) mode, as ilustrated in this link https://tinkerboarding.co.uk/wiki/index.php/Setup",
            "Remove and re-connect power to the board."
        ]
    },
    "instructions": [
        "Write the OS file you downloaded to your SD card. We recommend using <a href=\"http://www.etcher.io/\">Etcher</a>.",
        "Insert the freshly burnt SD card into the Asus Tinker Board S.",
        "<strong role=\"alert\">Warning!</strong> This will also completely erase internal storage media, so please make a backup first.",
        "Before powering up the Asus Tinker Board S, make sure that the jumper between the 5V power supply and the HDMI connector is in the MASKROM mode, as ilustrated in this link https://tinkerboarding.co.uk/wiki/index.php/Setup",
        "The device is performing a shutdown. Please wait until all LEDs are off.",
        "Remove the balenaOS installation media.",
        "Before powering up the Asus Tinker Board S, make sure that the jumper between the 5V power supply and the HDMI connector is in the parking (no function) mode, as ilustrated in this link https://tinkerboarding.co.uk/wiki/index.php/Setup",
        "Remove and re-connect power to the board."
    ],
    "gettingStartedLink": {
        "windows": "https://docs.resin.io/asus-tinker-board-s/nodejs/getting-started/#adding-your-first-device",
        "osx": "https://docs.resin.io/asus-tinker-board-s/nodejs/getting-started/#adding-your-first-device",
        "linux": "https://docs.resin.io/asus-tinker-board-s/nodejs/getting-started/#adding-your-first-device"
    },
    "supportsBlink": true,
    "yocto": {
        "machine": "asus-tinker-board-s",
        "image": "resin-image-flasher",
        "fstype": "resinos-img",
        "version": "yocto-sumo",
        "deployArtifact": "resin-image-flasher-asus-tinker-board-s.resinos-img",
        "compressed": true
    },
    "options": [
        {
            "isGroup": true,
            "name": "network",
            "message": "Network",
            "options": [
                {
                    "message": "Network Connection",
                    "name": "network",
                    "type": "list",
                    "choices": [
                        "wifi"
                    ]
                },
                {
                    "message": "Wifi SSID",
                    "name": "MY_WIFI",
                    "type": "text",
                    "when": {
                        "network": "wifi"
                    }
                },
                {
                    "message": "Wifi Passphrase",
                    "name": "MY_PW",
                    "type": "password",
                    "when": {
                        "network": "wifi"
                    }
                }
            ]
        },
        {
            "isGroup": true,
            "isCollapsible": true,
            "collapsed": true,
            "name": "advanced",
            "message": "Advanced",
            "options": [
                {
                    "message": "Check for updates every X minutes",
                    "name": "appUpdatePollInterval",
                    "type": "number",
                    "min": 10,
                    "default": 10
                }
            ]
        }
    ],
    "configuration": {
        "config": {
            "partition": {
                "primary": 1
            },
            "path": "/config.json"
        }
    },
    "initialization": {
        "options": [
            {
                "message": "Select a drive",
                "type": "drive",
                "name": "drive"
            }
        ],
        "operations": [
            {
                "command": "burn"
            }
        ]
    }

}
 

Question 1.
Has TinkerBoard S R2.0 been tested to the following CISPR 35 standards?
IEC 61000-4-3
IEC 61000-4-6

Question 2.
If so, can you tell us the test results?

The way you do it in config.txt like on the raspberry pi does not work.

How do you disable WiFi and Bluetooth on the Tinkerboard so the OS does not see it?

並將 15pin 電纜連接到 Tinker board 的 R2.0 ，它可以設置監視器 dsi 但到 dsi 顯示沒有任何反應。

像圖片

For other boards (such as Raspberry Pi 4 / or Zero 1) the WiFi works. But not for your Asus Tinker S R2.0

Thank you for any help on this.

After finishing testing, I would like to deploy the image to many Tinkerboard. 

May I know what is fastest method?

I do not want to use SD card.

Thanks in advance.

Alvin