Description of product

RK3188-SOM-EVB is a reference design of a 2-layer board for RK3188-SOM. It expands the features of RK3188-SOM by adding HDMI, LCD, 100Mb Ethernet, USB-OTG, 4 USB hosts, and 0.1'' GPIO headers. The hardware sources are available as Eagle CAD files, so everyone can modify and tailor according to his needs.

Reference design of a 2-layer board comaptible with RK3188-SOM that adds HDMI, 100MB Ethernet, USB-OTG, 4x USB HS/FS/LS hosts, RTC with backup battery. The RK3188-SOM-EVB board also adapts the 0.05'' step GPIO headers to 0.1'' step headers so you can easily attach an LCD or UEXT module. Its hardware design is open source and available as Eagle CAD files, so everyone can modify and tailor it according to the specific needs. Templates for RK3188-SOM receiptacle are available for Eagle and KiCAD.


  • Includes RK3188-SOM-4GB
  • RK3188-SOM(-4GB) matching connectors
  • Power barrel jack, +6V to +16V DC
  • HDMI video output with a standard connector
  • LCD video output on a 40 pin at 0.1" step connector (compatible with Olimex LCD displays)
  • 100Mb Ethernet interface with a connector
  • 2 × UEXT connectors
  • USB-OTG with power control and current limiter
  • 4 × USB host
  • Built-in RTC module
  • Coin battery connector that keeps the RTC powered
  • 2 × GPIO connectors × 40 pin @ 0.1" step
  • Power LED
  • Dimensions of the SOM part: (3.2×1.8)'' ~ (81×56)mm
  • Dimensions of the EVB part: (5.45×3.35)" ~ (138×85)mm




  • Image links, instructions, demo software, customer projects and more might be found at the wiki page of RK3188-SOM: RK3188-SOM wiki pages