grantland

AGB-001 Front/Backlight Mod Instructions

AGB-001 Backlight Mod

Requirements

• AGB-001
• ASS101 screen

jperkin

Comparing node.js GPIO implementations

Here are two simple programs testing the performance of my rpio library against popular alternatives which use the /sys interface (with the number of npm stars indicated for a rough idea of popularity).

rpi-gpio (9 stars)

This test is based on an example on the rpi-gpio page.

As modules which uses /sys depend upon asynchronous behaviour they require callbacks to ensure that the next operation starts only when the previous one has completed.

FrankWu100

config nodes

/sys/class/leds/<led>/device_name

Specifies the network device name to monitor.

/sys/class/leds/<led>/interval

Specifies the duration of the LED blink in milliseconds. Defaults to 50 ms.

/sys/class/leds//link

todbot

# Program a SAMD21 part with a bootloader using a JLINK / J-LINK
# 0a. Wire up your device with SWD & SWC pins to JLINK
# 0b. Also wire up Gnd and Power to Gnd & VTref on JLINK
# 0c. And separately supply power to device 
# 0d. Iif you don't have openocd installed, then "brew install openocd"
#
# 1. Put this file in a directory
# 2. Get a samd21 bootloader file.bin and put it in this directory renamed as "bootloader.bin"
# 3. Unplug and replug in the JLINK (to reset it)
# 4. Then do "openocd -f ./openocd-sams21.cfg" and stand back