NicoD

Nope, I was talking about 'clueless people' just to outline which challenges those TV box manufacturers face. Unlike premium STB device makers like BroadCom or HiSilicon where the SoCs can be reasonably designed to do the job since no end customer has to 'choose' them based on specs they don't understand (those boxes are given away 'for free' by their broadband provider) those 'el cheapo TV box' SoC makers have to design their devices in a way they look appealing to... clueless people (many CPU cores, high CPU clockspeeds). On the other hand those TV boxes can't be designed well since... clueless customers prefering devices with poor heat dissipation.
 
In the 'TV box world' those Amlogic things work pretty well since CPU performance is irrelevant anyway (only exception: exotic codecs the video engine -- VPU -- can not handle). But on SBCs it's something different since there the users expect from a SoC advertised as 'octa-core at 2 GHz' a bit more than the laughable 'octa-core at an average 1.2 GHz' performance they get with S912 in reality.

thx @NicoD. yeah maybe later after adding resistor and complete the circuit i am going to use a circuit board.
 Ho yeah it's change something.

Hi again. I use this for motor controller.
https://www.aliexpress.com/item/2-DC-motor-drive-module-reversing-PWM-speed-dual-H-bridge-stepper-motor-Mini-victory-L298N/32733219776.html?spm=a2g0s.9042311.0.0.wQdo9D
It's the same pricipe as the l293d but they can handle a bit more power and they don't overheat that easily. Also there is an overheating protection.
You could use a heatsink on the L293D's, normally they dissipate heat via the solder joints, but you've breadboarded it so it can't do that.
 
Are you going to solder the L293d to a circuit board afterwards?
 
Don't be aftraid to use resistors. They are safe to use, but you need big enough resistors if you put thru a lot of energy. Christof explained a bit.
Watch a youtube video about it. There's two things you need to understand, Ohm(resistance) and Watt(power).
It might look confusing in the beginning, but you'll be happy to know.
Good luck. I love it seeing people do something like that.

Hi again. I use this for motor controller.
https://www.aliexpress.com/item/2-DC-motor-drive-module-reversing-PWM-speed-dual-H-bridge-stepper-motor-Mini-victory-L298N/32733219776.html?spm=a2g0s.9042311.0.0.wQdo9D
It's the same pricipe as the l293d but they can handle a bit more power and they don't overheat that easily. Also there is an overheating protection.
You could use a heatsink on the L293D's, normally they dissipate heat via the solder joints, but you've breadboarded it so it can't do that.
 
Are you going to solder the L293d to a circuit board afterwards?
 
Don't be aftraid to use resistors. They are safe to use, but you need big enough resistors if you put thru a lot of energy. Christof explained a bit.
Watch a youtube video about it. There's two things you need to understand, Ohm(resistance) and Watt(power).
It might look confusing in the beginning, but you'll be happy to know.
Good luck. I love it seeing people do something like that.

Now I understand, I thought you wanted to use your Tinker in your car. Cool what you've done, for that I also use a power bank. Here a video of me building a simple robot with an Arduino. Keep up the good work. Sorry for the misunderstanding.
 

If you truly want to do it yourself with battery's. Then don't forget to use a good loadcircuit. Or your guaranteed burn your car down.
I still advice to use a good power bank, it's got a loadcircuit and power management.
But do as you wish, but be safe.

I have used it with the Tinker Board. But I more often use it with my Odroid C2. I've got a self made laptop with that battery, a 7inch 1024*600 display and a Rii i8 keyboard. Very handy. This battery can power 2 sbc's and the screen at the same time.
The Tinker Board does use more power, so you could choose the other 22000mAh type. That one can give 2.4A per port and 5.8A overal.

Yes, use something like this.
https://www.ravpower.com/26800mah-external-battery-charger-iSmart2.0-black.html
You can charge it in your car with a car-phone charger. It lasts for 10 hours. An has voltage regulation installed.
Looks like too much hassle to make it yourself when it's easy to buy it.
Greetings

Hello there Nico,
 
Use both RED pin headers. I mean, BOTH. Usual warnings here: Careful to not short with any other pins, use a high quality (properly filtered) and with at least 2 Amps power supply, etc.
 
There's a *lenghty* discussion here about $SUBJECT, look up posts from @TonyMac32. He even discusses how to build a good power supply.
 
Good luck :-)

Quite possible that different DVFS settings are used. IIRC @TonyMac32 switched with kernel/settings from Tinker sources to upstream Rockchip BSP a while ago. The individual DVFS OPP should be accessible from userspace (sysfs -- but don't know details. I skipped RK3288 entirely so far)

Do you mean at full CPU usage? No wonder. Just consider that XU4 peaks above 3A, also with nothing connected to it. You need a minimum of a 5V 2.5A PSU to work with the Tinkerboard.
 
Powering through GPIO gives you the best power throughput, but if you don't use a filtered PSU or make a tailored circuit for that yourself, you risk to burn your board. I personally use a 5v 2.5A PSU connected through MicroUSB, and never get a crash as long as I don't connect to the USB ports anything more than the keyboard dongle (I tested dual CPU+GPU mining for several days). The key is to get a good MicroUSB cable, with a plug that makes as much contact as possible. If you're only going to do benchmarks, that should be enough.
 
You can test the Armbian multimedia package for the Tinkerboard here:
It will make streaming videos, webGL, and more stuff, work, and will give you a real idea of the Tinkerboard's potential.
 
I'll try to make a Blender BMW render (that is your test, right?), and let you know about my results.
 

Hello Nico
 
You could use a single header. But by using both, you have more 'copper surface' and less ohmic losses (read: voltage drop).
 
Connect GND to any black header and then you will be all set.
 
Best of luck :-)

Hey, don't worry, in addition to releasing my weekly allowance of testosterone in this discussion, I am meanwhile making tests on the Tinker. So far, render is going well, I'll get to you with the results.

Hello all.
I've made a video about the Rock64. I've tried different distro's, but Armbian was the best for me.
The only problems I've found was that Synaptic Package Manager didn't work. It crashes when I press the search button. And sometimes surfing was extremely slow. Otherwise it did fix all the problems I've had with the other distro's I've tried.
Thank you for all the great work.

Now I've started my research with the Orange Pi +2, and again Armbian is the best choice.
Greetings, NicoD

Here is my video.

 

Hello all.
I've made a video about the Rock64. I've tried different distro's, but Armbian was the best for me.
The only problems I've found was that Synaptic Package Manager didn't work. It crashes when I press the search button. And sometimes surfing was extremely slow. Otherwise it did fix all the problems I've had with the other distro's I've tried.
Thank you for all the great work.

Now I've started my research with the Orange Pi +2, and again Armbian is the best choice.
Greetings, NicoD

Here is my video.

 

Hello all.
I've made a video about the Rock64. I've tried different distro's, but Armbian was the best for me.
The only problems I've found was that Synaptic Package Manager didn't work. It crashes when I press the search button. And sometimes surfing was extremely slow. Otherwise it did fix all the problems I've had with the other distro's I've tried.
Thank you for all the great work.

Now I've started my research with the Orange Pi +2, and again Armbian is the best choice.
Greetings, NicoD

Here is my video.

 

Hello all.
I've made a video about the Rock64. I've tried different distro's, but Armbian was the best for me.
The only problems I've found was that Synaptic Package Manager didn't work. It crashes when I press the search button. And sometimes surfing was extremely slow. Otherwise it did fix all the problems I've had with the other distro's I've tried.
Thank you for all the great work.

Now I've started my research with the Orange Pi +2, and again Armbian is the best choice.
Greetings, NicoD

Here is my video.