Olimex has a nice board with the Ralink rt5350 MIPS SoC (32 MB RAM, 8 MB SPI flash) with integrated 802.11n wifi. About 24 € with the base port providing two relays, two NICs, USB.

It comes with OpenWRT 15.05-rc3 pre-installed, kernel 3.18.19.

The serial port is 3v3 with 57600 8N1. The left ethernet port is LAN, the right/middle port is WAN.

root@rt5350f:/# cat /proc/cpuinfo                                               
system type             : Ralink RT5350 id:1 rev:3                              
machine                 : RT5350F-OLINUXINO                                     
processor               : 0                                                     
cpu model               : MIPS 24KEc V4.12                                      
BogoMIPS                : 239.61                                                
wait instruction        : yes                                                   
microsecond timers      : yes                                                   
tlb_entries             : 32                                                    
extra interrupt vector  : yes                                                   
hardware watchpoint     : yes, count: 4, address/irw mask: [0x0ffc, 0x0ffc, 0x0]
isa                     : mips1 mips2 mips32r1 mips32r2                         
ASEs implemented        : mips16 dsp                                            
shadow register sets    : 1                                                     
kscratch registers      : 0                                                     
package                 : 0                                                     
core                    : 0                                                     
VCED exceptions         : not available                                         
VCEI exceptions         : not available    

The relays and the button is nicely exported:

root@rt5350f:/sys/kernel/debug# cat gpio                                        
GPIOs 0-21, platform/10000600.gpio, 10000600.gpio:                              
 gpio-0   (button              ) in  hi                                         
 gpio-12  (relay2              ) out lo                                         
 gpio-14  (relay1              ) out lo                                         
                                                                                
GPIOs 22-27, platform/10000660.gpio, 10000660.gpio:   

posted at: 22:12 | path: /projects | permanent link