Category Archives: VoCore

VoCore, Micropython, more Blinking

Lately I measured the maximum frequency I could get out of the VoCore by toggling a GPIO as fast as possible using various approaches. Today I wrote a simple Kernel module which allows me to set/clear a GPIO through IOCTL. Also I created a FFI binding to IOCTL for micropython and the usual test program […]

VoCore Maximum Blink Frequency

Today I did some testing on the maximum blink frequency I could get out of the VoCore using the „sysfs„ GPIO interface. I used four different candidates: A shell script A Python 2.7 program, basically the one described here (gist) A Micropython program, more or less the same as the above, but using native libc […]

VoCore, Micropython and the SYSFS

As I wrote a while ago I was not able to access the Kernels SYSFS through the build-in „open/read/write“ methods from micropython. I thought this might be because of the old version of micropython which comes from the OpenWrt binary repository, but even rebuilding OpenWrt did’t change anything. Then I realized, there is FFI (foreigen […]

VoCore Arrived

Today my VoCore modules arrived from China (they are amazingly tiny). So time for a first LED blink right? Ok, I wanted to get things working quickly so I decided to go with the pre-installed OpenWrt and Python + sysfs. Unfortunately there is not Python on the device, and also the right package sources are […]