I have been screening the forum for some weeks, looking for some tweaks, tipps and tricks to start off my own build. So I came across a lot of Raspberry Pi Zero builds, but to my understanding they lack in performance, especially when going for PSX games. Better off with a Raspberry Pi 3 b (not + as it draws too much power), however all the desoldering and butchering is a bit frightning.
Looking for an alternative I came across Odroid, which I have used before, the C1+ is my audio player (run via I2S into my DAC, switched from Raspberry Pi just for the native sampling frequency of the audio chip) in the living room.
The Odroid C0 (A Zero aswell!) looks promising to me, I am going for an HDMI screen (the KeDei), so no problem with analogue AV output missing. Power will be done with an Helder Retro PSU. The board is unpopulated, so no desoldering needed. An the specs look promising too:
Power consumption:* Amlogic ARM® Cortex®-A5(ARMv7) 1.5Ghz quad core CPUs
* Mali™-450 MP2 GPU (OpenGL ES 2.0/1.1 enabled for Linux and Android)
* 1Gbyte DDR3 SDRAM
* eMMC4.5 HS200 Flash Storage slot / UHS-1 SDR50 MicroSD Card slot
* 40pin + 7pin GPIOs (unpopulated)
* USB 2.0 Host x 2 (unpopulated)
* Infrared(IR) Receiver (unpopulated)
* Li+ rechargeable battery charger for wearable and robots application
* Battery voltage level is accessible via ADC in the SoC.
* DC/DC step-down converters for higher power efficiency
* DC/DC step-up converter for 5Volt rails (USB host and HDMI) from a Li-Polymer battery
* DIY friendly C0 Connector Pack is available for handy prototyping
Src: https://forum.odroid.com/viewtopic.php?f=111&t=25812Ok, I did some test, but like you its not 100% on CPU+GPU... I used games for testing, has this maybe a "true life" use case of CPU + GPU usage.
What I used is : HDMI in 800x480, 1 usb wireless dongle for keyboard + integrated mouse, all running debian jessie with a very light WM.
- If no sdcard, no emmc, no usb : 0.12A
- If no sdcard, no emmc, wireless keyboard dongle : 0.15A
- Boot, without X and no login : 0.26A
- Playing Astromenace : 0.38A
- Playing Aquaria : 0.32 - 0.40A
- Playing Hurrican: 0.28 - 0.34A
- Playing RVGL : 0.30 - 0.36A
When playing Aquaria, CPU was around 80% usage, I guess that GPU was working hard too.
So I would say with no HDMI and no USB, the board should consume no more than 0.4A with CPU and GPU near full load...
Hardkernel ODROID C0
Am I missing out on something? I could not find a single build on sudomod based on the Odroid C0?!
Looking forward! Best regards, Kapster