Libre Computer Board ROC-RK3328-CC (Renegade) Mini Computer with Gigabit Ethernet and USB 3.0 (4GB)

Performs better than a Pi3 and definitely better than the Le Potato from this same company. Has some quirks. I really like the optional eMMC storage, the full bandwidth GigE port, and that it will support a 4K monitor. Graphics is a little strained at 4K, but server tasks work really well. There is no WiFi. There *is* a regular size HDMI connector and IR receiver. There is a 40-pin header, but it is neither physically nor software compatible with the headers on a Raspberry Pi - so you cannot simply attach a hat card from the Pi universe. You *can* custom-wire sensors and devices, and will then have to configure them in a way that is specific to this board. When Raspberry Pi was unobtainium - this was an excellent option. Now that they are available again, and with even faster CPUs, I would think twice - especially if you use the 40-pin header. I find it odd that the Amazon review form has items for camera and touch screen. Those CSI and DSI connectors for a camera and touch screen (that are on a Raspberry Pi) are not on this board. So camera and touch screen add-ons will need to be USB, and won't be a major hassle.

to those having issues getting the device to boot with non-vendor operating systems, make sure to keep the first 32768 sectors free for the booter (this is hardcoded in rockchip processors)if=idbloader.img seek=64if=u-boot.itb seek=16384and if you need to access the console you need to use the uart pins at the bottom of the 40 pin connectorand just for fun, if you want the red and green leds to be functional, you need to modprobe pinctrl-rk805in my opinion, if you want to run this with a rolling release distro (kernel 6.10 and up), do itall the gpios are usable (generally rpi 40 pin compatible)generally well defined device tree (you will need to at some point modify this)pmic has a rtc built-in (but needs external power)uart ready (not the rpi uart pins, 1.5M baud)infrared recieverintegrated 10-bit adc (2 pins on secondary 3 pin header (one is hardwired to the button near the ir reciever), 0v - 1.8v, needs to be explicitly enabled)the rk3328-roc-cc revision b has more features than are enabled by the default upstream dts, most of what is in the rk3328-roc-pc dts can be used for this boardi use a canakit power supply with it (https://www.amazon.com/gp/product/B00MARDJZ4) and see no issuesmy opinion of the design flaws of this device are largely inherited from the rk3328 reference platform, such asusing i2c1 instead of i2c0 (consumers two pins that could have been used as hardware pwm, can't disable it because the pmic is hardwired into it)placing the hardware chip select of one (unusable) spi bus beneath the other to give the impression there are more hardware chip selects than there are (you only get one!)as for the roc-cc itself...the problems of making a pi-form sbc is that you can never get 100% pi-shaped layout so you don't have a good selection of casesand finally, the choice to use a 32k crystal the size of a grain of rice on the very back edge of the board, if it breaks off, it only affects the alarm function of the rtcbut generally, thumbs up

I'm a big fan of Libre computer's S905X boards (Le Potato) and have a bunch of them in service in 3D printers at home/have replaced RPis using them.This year, one of my projects was to build an SBC powered web terminal to allow viewing our security cameras in our Kitchen, and this seemed to be an excellent candidate... unfortunately the specs fell short for that task... even though it still gained a solid 4 stars in my book. Here are the pro's and cons:Pro: Price! $50 got me a 4GB quad core A53 @ 1.4GHz. You can't touch an RPi still for less than $140 thanks to the shortage.Pro: Quad core A53Con: Its clocked at 1.4GHz (an A53 can go up to 1.5GHz with the proper thermal managament)Pro: USB 3.0...Con: Only one USB3.0Pro: Gigabyte ethernet (unlike the Le Potato)Con: No wifi, no bluetoothPro: decent GPUCon: for some reason I had difficulty realizing the benefits of the GPU in Chromium/Ubuntu.Pro: decent power profile, miserly.Con: Poor documentation... which impacts every part of using this board.Ultimately, the Renegade proved too sluggish to serve as a web terminal that can view camera streams @ about 15FPS... so I dismantled it.This board appears to be a board of compromises... I think Libre put all their energies into the S905X. ignoring this product. Not having two USB3 ports, and not having wifi + bluetooth doesn't make this an alternative to the RPi.So... who should buy this board? If you need a bit more than the Le Potato can offer, especially if you need 1GBps ethernet, this is your board.